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The price reported above reflects the weighted average sale price.  The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"By the Robert L. Boughner Investment Trust, Robert L. Boughner, Trustee"}],"balance_after":104811,"source":{"system":"sec-edgar","filing":"0001186747-17-000044","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/906553/000118674717000044/edgar.xml","form_type":"4"}},{"id":4307080,"issuer":{"id":3838,"kind":"organization","name":"BOYD GAMING CORP"},"owners":[{"id":129947,"kind":"person","name":"BOUGHNER ROBERT L","position":1,"cik":"0001186736","reported_name":"BOUGHNER ROBERT L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Employee Stock Option (Right to Buy)","published_at":"2017-05-25T00:05:18.000Z","date":"2017-05-22","kind":"exercise","acquired":true,"shares":25510,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Options granted under Boyd Gaming Corporation 2012 Flexible Stock Option Plan.  Vesting plan calls for options to become exercisable at the rate of 33.333% per year on the first day of each successive 12 month period commencing one year from grant date."}],"balance_after":0,"derivative":{"exercise_price":9.86,"expiration_date":"2023-11-07","underlying":"Common Stock","underlying_shares":25510},"source":{"system":"sec-edgar","filing":"0001186747-17-000037","document":"edgar.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/906553/000118674717000037/edgar.xml","form_type":"4"}},{"id":4307079,"issuer":{"id":3838,"kind":"organization","name":"BOYD GAMING CORP"},"owners":[{"id":129947,"kind":"person","name":"BOUGHNER ROBERT L","position":1,"cik":"0001186736","reported_name":"BOUGHNER ROBERT L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-05-25T00:05:18.000Z","date":"2017-05-22","kind":"sale","acquired":false,"shares":25510,"price":25.21,"value":643107.1,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"This transaction was executed in multiple trades at prices ranging from $25.17 to $25.32.  The price reported above reflects the weighted average sale price.  The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":40000,"source":{"system":"sec-edgar","filing":"0001186747-17-000037","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/906553/000118674717000037/edgar.xml","form_type":"4"}},{"id":4307078,"issuer":{"id":3838,"kind":"organization","name":"BOYD GAMING CORP"},"owners":[{"id":129947,"kind":"person","name":"BOUGHNER ROBERT L","position":1,"cik":"0001186736","reported_name":"BOUGHNER ROBERT L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-05-25T00:05:18.000Z","date":"2017-05-22","kind":"exercise","acquired":true,"shares":25510,"price":9.86,"value":251528.6,"ownership":{"direct":true},"balance_after":65510,"source":{"system":"sec-edgar","filing":"0001186747-17-000037","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906553/000118674717000037/edgar.xml","form_type":"4"}},{"id":4351691,"issuer":{"id":3838,"kind":"organization","name":"BOYD GAMING CORP"},"owners":[{"id":129947,"kind":"person","name":"BOUGHNER ROBERT L","position":1,"cik":"0001186736","reported_name":"BOUGHNER ROBERT L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2017-04-17T21:35:23.000Z","date":"2017-04-13","kind":"grant","acquired":true,"shares":6782,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"The restricted Stock Units were granted to the Reporting Person for no consideration under Issuer's 2012 Stock Incentive Plan.  Each Restricted Stock Unit represents a contingent right to receive one share of Issuer common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Restricted Stock Units are fully vested upon grant and will be paid in shares of Issuer common stock upon cessation of services on the Board of Directors."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Restricted Stock Units are fully vested upon grant and will be paid in shares of Issuer common stock upon cessation of services on the Board of Directors."}],"balance_after":6782,"derivative":{"underlying":"Common Stock","underlying_shares":6782},"source":{"system":"sec-edgar","filing":"0001186747-17-000030","document":"edgar.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906553/000118674717000030/edgar.xml","form_type":"4"}},{"id":4395763,"issuer":{"id":3838,"kind":"organization","name":"BOYD GAMING CORP"},"owners":[{"id":129947,"kind":"person","name":"BOUGHNER ROBERT L","position":1,"cik":"0001186736","reported_name":"BOUGHNER ROBERT L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-03-08T23:10:00.000Z","date":"2017-03-06","kind":"sale","acquired":false,"shares":10000,"price":19.89,"value":198900.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F5","text":"This transaction was executed in multiple trades at prices ranging from $19.89 to $19.92.  The price reported above reflects the weighted average sale price.  The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F7","text":"By the Robert L. Boughner 2012 Long Term Trust, Robert L. Boughner, Co-Trustee"}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0001186747-17-000024","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/906553/000118674717000024/edgar.xml","form_type":"4"}},{"id":4395762,"issuer":{"id":3838,"kind":"organization","name":"BOYD GAMING CORP"},"owners":[{"id":129947,"kind":"person","name":"BOUGHNER ROBERT L","position":1,"cik":"0001186736","reported_name":"BOUGHNER ROBERT L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-03-08T23:10:00.000Z","date":"2017-03-06","kind":"sale","acquired":false,"shares":50000,"price":19.59,"value":979500.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"This transaction was executed in multiple trades at prices ranging from $19.58 to $19.63.  The price reported above reflects the weighted average sale price.  The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"On August 31, 2016,  16,109 shares were transferred from the reporting person's directly held account to the Robert L. Boughner Investment Trust, Robert L. Boughner, Trustee"},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"On February 13, 2017, 142,998 shares were transferred from the reporting person's directly held account to the Robert L. Boughner Investment Trust, Robert L. Boughner, Trustee"},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"On February 24, 2017, 19,904 shares were transferred from the reporting person's directly held account to the Robert L. Boughner Investment Trust, Robert L. Boughner, Trustee"},{"field":"ownership.nature","element":"natureOfOwnership","label":"F6","text":"By the Robert L. Boughner Investment Trust, Robert L. Boughner, Trustee"}],"balance_after":144811,"source":{"system":"sec-edgar","filing":"0001186747-17-000024","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/906553/000118674717000024/edgar.xml","form_type":"4"}},{"id":4419017,"issuer":{"id":3838,"kind":"organization","name":"BOYD GAMING CORP"},"owners":[{"id":129947,"kind":"person","name":"BOUGHNER ROBERT L","position":1,"cik":"0001186736","reported_name":"BOUGHNER ROBERT L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-02-28T23:02:09.000Z","date":"2017-02-24","kind":"tax_withholding","acquired":false,"shares":14382,"price":19.87,"value":285770.34,"ownership":{"direct":true},"balance_after":219011,"source":{"system":"sec-edgar","filing":"0001186747-17-000015","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/906553/000118674717000015/edgar.xml","form_type":"4"}},{"id":4419016,"issuer":{"id":3838,"kind":"organization","name":"BOYD GAMING CORP"},"owners":[{"id":129947,"kind":"person","name":"BOUGHNER ROBERT L","position":1,"cik":"0001186736","reported_name":"BOUGHNER ROBERT L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-02-28T23:02:09.000Z","date":"2017-02-24","kind":"grant","acquired":true,"shares":34286,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares underlying Performance Share Units that vested on February 24, 2017."}],"balance_after":233393,"source":{"system":"sec-edgar","filing":"0001186747-17-000015","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906553/000118674717000015/edgar.xml","form_type":"4"}},{"id":4421848,"issuer":{"id":3751,"kind":"organization","name":"Southwest Gas Holdings, Inc."},"owners":[{"id":129947,"kind":"person","name":"BOUGHNER ROBERT L","position":1,"cik":"0001186736","reported_name":"BOUGHNER ROBERT L","relationship":{"director":true}}],"security":"Common Stock","published_at":"2017-02-27T16:28:38.000Z","date":"2017-02-23","kind":"grant","acquired":true,"shares":2050,"price":77.26,"value":158383.0,"ownership":{"direct":true},"balance_after":33677.3951,"source":{"system":"sec-edgar","filing":"0001225208-17-004653","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1692115/000122520817004653/doc4.xml","form_type":"4"}},{"id":4446676,"issuer":{"id":3838,"kind":"organization","name":"BOYD GAMING CORP"},"owners":[{"id":129947,"kind":"person","name":"BOUGHNER ROBERT L","position":1,"cik":"0001186736","reported_name":"BOUGHNER ROBERT L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Career Restricted Stock Units","published_at":"2017-02-16T01:28:07.000Z","date":"2017-02-13","kind":"exercise","acquired":true,"shares":9074,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"The Career Restricted Stock Units were granted to the Reporting Person for no consideration pursuant to the Issuer's Career Shares Program under its 2012 Stock Incentive Plan.  Each Career Restricted Stock Unit converted into common stock on a one-for-one basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The Career Restricted Stock Units will be paid out in shares of Issuer common stock at the time of retirement based upon the Reporting Person's/grantee's attained age and years of continuous service at the time of retirement.  To receive any payout under the Career Shares Program, grantees must be at least years 55 years old and must have been continually employed by the Issuer for a minimum of 10 years.  Retirement after 10 years of service will entitle a grantee to 50 percent of his or her Career Restricted Stock Units.  This increases to 75 percent after 15 years and 100 percent following 20 years of employment.  In the event of grantee's death or permanent disability, or following a change in control of Issuer, the grantee will be deemed to have attained age 55 and the Career Restricted Stock Units will immediately vest and convert into shares of Issuer common stock based on the grantee's years of continuous service through the date of death, termination resulting from permanent disability or the change in control, as applicable."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F13","text":"On January 4, 2016, the reporting person was granted 9,074 Career Restricted Stock Units."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The Career Restricted Stock Units will be paid out in shares of Issuer common stock at the time of retirement based upon the Reporting Person's/grantee's attained age and years of continuous service at the time of retirement.  To receive any payout under the Career Shares Program, grantees must be at least years 55 years old and must have been continually employed by the Issuer for a minimum of 10 years.  Retirement after 10 years of service will entitle a grantee to 50 percent of his or her Career Restricted Stock Units.  This increases to 75 percent after 15 years and 100 percent following 20 years of employment.  In the event of grantee's death or permanent disability, or following a change in control of Issuer, the grantee will be deemed to have attained age 55 and the Career Restricted Stock Units will immediately vest and convert into shares of Issuer common stock based on the grantee's years of continuous service through the date of death, termination resulting from permanent disability or the change in control, as applicable."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":9074},"source":{"system":"sec-edgar","filing":"0001186747-17-000012","document":"edgar.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":23,"url":"https://www.sec.gov/Archives/edgar/data/906553/000118674717000012/edgar.xml","form_type":"4"}},{"id":4446675,"issuer":{"id":3838,"kind":"organization","name":"BOYD GAMING CORP"},"owners":[{"id":129947,"kind":"person","name":"BOUGHNER ROBERT L","position":1,"cik":"0001186736","reported_name":"BOUGHNER ROBERT L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Career Restricted Stock Units","published_at":"2017-02-16T01:28:07.000Z","date":"2017-02-13","kind":"exercise","acquired":true,"shares":13489,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"The Career Restricted Stock Units were granted to the Reporting Person for no consideration pursuant to the Issuer's Career Shares Program under its 2012 Stock Incentive Plan.  Each Career Restricted Stock Unit converted into common stock on a one-for-one basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The Career Restricted Stock Units will be paid out in shares of Issuer common stock at the time of retirement based upon the Reporting Person's/grantee's attained age and years of continuous service at the time of retirement.  To receive any payout under the Career Shares Program, grantees must be at least years 55 years old and must have been continually employed by the Issuer for a minimum of 10 years.  Retirement after 10 years of service will entitle a grantee to 50 percent of his or her Career Restricted Stock Units.  This increases to 75 percent after 15 years and 100 percent following 20 years of employment.  In the event of grantee's death or permanent disability, or following a change in control of Issuer, the grantee will be deemed to have attained age 55 and the Career Restricted Stock Units will immediately vest and convert into shares of Issuer common stock based on the grantee's years of continuous service through the date of death, termination resulting from permanent disability or the change in control, as applicable."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F12","text":"On January 2, 2015, the reporting person was granted 13,489 Career Restricted Stock Units."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The Career Restricted Stock Units will be paid out in shares of Issuer common stock at the time of retirement based upon the Reporting Person's/grantee's attained age and years of continuous service at the time of retirement.  To receive any payout under the Career Shares Program, grantees must be at least years 55 years old and must have been continually employed by the Issuer for a minimum of 10 years.  Retirement after 10 years of service will entitle a grantee to 50 percent of his or her Career Restricted Stock Units.  This increases to 75 percent after 15 years and 100 percent following 20 years of employment.  In the event of grantee's death or permanent disability, or following a change in control of Issuer, the grantee will be deemed to have attained age 55 and the Career Restricted Stock Units will immediately vest and convert into shares of Issuer common stock based on the grantee's years of continuous service through the date of death, termination resulting from permanent disability or the change in control, as applicable."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":13489},"source":{"system":"sec-edgar","filing":"0001186747-17-000012","document":"edgar.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":22,"url":"https://www.sec.gov/Archives/edgar/data/906553/000118674717000012/edgar.xml","form_type":"4"}},{"id":4446674,"issuer":{"id":3838,"kind":"organization","name":"BOYD GAMING CORP"},"owners":[{"id":129947,"kind":"person","name":"BOUGHNER ROBERT L","position":1,"cik":"0001186736","reported_name":"BOUGHNER ROBERT L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Career Restricted Stock Units","published_at":"2017-02-16T01:28:07.000Z","date":"2017-02-13","kind":"exercise","acquired":true,"shares":14589,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"The Career Restricted Stock Units were granted to the Reporting Person for no consideration pursuant to the Issuer's Career Shares Program under its 2012 Stock Incentive Plan.  Each Career Restricted Stock Unit converted into common stock on a one-for-one basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The Career Restricted Stock Units will be paid out in shares of Issuer common stock at the time of retirement based upon the Reporting Person's/grantee's attained age and years of continuous service at the time of retirement.  To receive any payout under the Career Shares Program, grantees must be at least years 55 years old and must have been continually employed by the Issuer for a minimum of 10 years.  Retirement after 10 years of service will entitle a grantee to 50 percent of his or her Career Restricted Stock Units.  This increases to 75 percent after 15 years and 100 percent following 20 years of employment.  In the event of grantee's death or permanent disability, or following a change in control of Issuer, the grantee will be deemed to have attained age 55 and the Career Restricted Stock Units will immediately vest and convert into shares of Issuer common stock based on the grantee's years of continuous service through the date of death, termination resulting from permanent disability or the change in control, as applicable."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F11","text":"On January 2, 2014, the reporting person was granted 14,589 Career Restricted Stock Units."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The Career Restricted Stock Units will be paid out in shares of Issuer common stock at the time of retirement based upon the Reporting Person's/grantee's attained age and years of continuous service at the time of retirement.  To receive any payout under the Career Shares Program, grantees must be at least years 55 years old and must have been continually employed by the Issuer for a minimum of 10 years.  Retirement after 10 years of service will entitle a grantee to 50 percent of his or her Career Restricted Stock Units.  This increases to 75 percent after 15 years and 100 percent following 20 years of employment.  In the event of grantee's death or permanent disability, or following a change in control of Issuer, the grantee will be deemed to have attained age 55 and the Career Restricted Stock Units will immediately vest and convert into shares of Issuer common stock based on the grantee's years of continuous service through the date of death, termination resulting from permanent disability or the change in control, as applicable."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":14589},"source":{"system":"sec-edgar","filing":"0001186747-17-000012","document":"edgar.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":21,"url":"https://www.sec.gov/Archives/edgar/data/906553/000118674717000012/edgar.xml","form_type":"4"}},{"id":4446673,"issuer":{"id":3838,"kind":"organization","name":"BOYD GAMING CORP"},"owners":[{"id":129947,"kind":"person","name":"BOUGHNER ROBERT L","position":1,"cik":"0001186736","reported_name":"BOUGHNER ROBERT L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Career Restricted Stock Units","published_at":"2017-02-16T01:28:07.000Z","date":"2017-02-13","kind":"exercise","acquired":true,"shares":24336,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"The Career Restricted Stock Units were granted to the Reporting Person for no consideration pursuant to the Issuer's Career Shares Program under its 2012 Stock Incentive Plan.  Each Career Restricted Stock Unit converted into common stock on a one-for-one basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The Career Restricted Stock Units will be paid out in shares of Issuer common stock at the time of retirement based upon the Reporting Person's/grantee's attained age and years of continuous service at the time of retirement.  To receive any payout under the Career Shares Program, grantees must be at least years 55 years old and must have been continually employed by the Issuer for a minimum of 10 years.  Retirement after 10 years of service will entitle a grantee to 50 percent of his or her Career Restricted Stock Units.  This increases to 75 percent after 15 years and 100 percent following 20 years of employment.  In the event of grantee's death or permanent disability, or following a change in control of Issuer, the grantee will be deemed to have attained age 55 and the Career Restricted Stock Units will immediately vest and convert into shares of Issuer common stock based on the grantee's years of continuous service through the date of death, termination resulting from permanent disability or the change in control, as applicable."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F10","text":"On January 2, 2013, the reporting person was granted 24,336 Career Restricted Stock Units."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The Career Restricted Stock Units will be paid out in shares of Issuer common stock at the time of retirement based upon the Reporting Person's/grantee's attained age and years of continuous service at the time of retirement.  To receive any payout under the Career Shares Program, grantees must be at least years 55 years old and must have been continually employed by the Issuer for a minimum of 10 years.  Retirement after 10 years of service will entitle a grantee to 50 percent of his or her Career Restricted Stock Units.  This increases to 75 percent after 15 years and 100 percent following 20 years of employment.  In the event of grantee's death or permanent disability, or following a change in control of Issuer, the grantee will be deemed to have attained age 55 and the Career Restricted Stock Units will immediately vest and convert into shares of Issuer common stock based on the grantee's years of continuous service through the date of death, termination resulting from permanent disability or the change in control, as applicable."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":24336},"source":{"system":"sec-edgar","filing":"0001186747-17-000012","document":"edgar.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":20,"url":"https://www.sec.gov/Archives/edgar/data/906553/000118674717000012/edgar.xml","form_type":"4"}},{"id":4446672,"issuer":{"id":3838,"kind":"organization","name":"BOYD GAMING CORP"},"owners":[{"id":129947,"kind":"person","name":"BOUGHNER ROBERT L","position":1,"cik":"0001186736","reported_name":"BOUGHNER ROBERT L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Career Restricted Stock Units","published_at":"2017-02-16T01:28:07.000Z","date":"2017-02-13","kind":"exercise","acquired":true,"shares":21456,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"The Career Restricted Stock Units were granted to the Reporting Person for no consideration pursuant to the Issuer's Career Shares Program under its 2002 Stock Incentive Plan.  Each Career Restricted Stock Unit converted into common stock on a one-for-one basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The Career Restricted Stock Units will be paid out in shares of Issuer common stock at the time of retirement based upon the Reporting Person's/grantee's attained age and years of continuous service at the time of retirement.  To receive any payout under the Career Shares Program, grantees must be at least years 55 years old and must have been continually employed by the Issuer for a minimum of 10 years.  Retirement after 10 years of service will entitle a grantee to 50 percent of his or her Career Restricted Stock Units.  This increases to 75 percent after 15 years and 100 percent following 20 years of employment.  In the event of grantee's death or permanent disability, or following a change in control of Issuer, the grantee will be deemed to have attained age 55 and the Career Restricted Stock Units will immediately vest and convert into shares of Issuer common stock based on the grantee's years of continuous service through the date of death, termination resulting from permanent disability or the change in control, as applicable."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F9","text":"On January 3, 2012, the reporting person was granted 21,456 Career Restricted Stock Units."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The Career Restricted Stock Units will be paid out in shares of Issuer common stock at the time of retirement based upon the Reporting Person's/grantee's attained age and years of continuous service at the time of retirement.  To receive any payout under the Career Shares Program, grantees must be at least years 55 years old and must have been continually employed by the Issuer for a minimum of 10 years.  Retirement after 10 years of service will entitle a grantee to 50 percent of his or her Career Restricted Stock Units.  This increases to 75 percent after 15 years and 100 percent following 20 years of employment.  In the event of grantee's death or permanent disability, or following a change in control of Issuer, the grantee will be deemed to have attained age 55 and the Career Restricted Stock Units will immediately vest and convert into shares of Issuer common stock based on the grantee's years of continuous service through the date of death, termination resulting from permanent disability or the change in control, as applicable."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":21456},"source":{"system":"sec-edgar","filing":"0001186747-17-000012","document":"edgar.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":19,"url":"https://www.sec.gov/Archives/edgar/data/906553/000118674717000012/edgar.xml","form_type":"4"}},{"id":4446671,"issuer":{"id":3838,"kind":"organization","name":"BOYD GAMING CORP"},"owners":[{"id":129947,"kind":"person","name":"BOUGHNER ROBERT L","position":1,"cik":"0001186736","reported_name":"BOUGHNER ROBERT L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Career Restricted Stock Units","published_at":"2017-02-16T01:28:07.000Z","date":"2017-02-13","kind":"exercise","acquired":true,"shares":15264,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"The Career Restricted Stock Units were granted to the Reporting Person for no consideration pursuant to the Issuer's Career Shares Program under its 2002 Stock Incentive Plan.  Each Career Restricted Stock Unit converted into common stock on a one-for-one basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The Career Restricted Stock Units will be paid out in shares of Issuer common stock at the time of retirement based upon the Reporting Person's/grantee's attained age and years of continuous service at the time of retirement.  To receive any payout under the Career Shares Program, grantees must be at least years 55 years old and must have been continually employed by the Issuer for a minimum of 10 years.  Retirement after 10 years of service will entitle a grantee to 50 percent of his or her Career Restricted Stock Units.  This increases to 75 percent after 15 years and 100 percent following 20 years of employment.  In the event of grantee's death or permanent disability, or following a change in control of Issuer, the grantee will be deemed to have attained age 55 and the Career Restricted Stock Units will immediately vest and convert into shares of Issuer common stock based on the grantee's years of continuous service through the date of death, termination resulting from permanent disability or the change in control, as applicable."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F8","text":"On January 3, 2011, the reporting person was granted 15,264 Career Restricted Stock Units."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The Career Restricted Stock Units will be paid out in shares of Issuer common stock at the time of retirement based upon the Reporting Person's/grantee's attained age and years of continuous service at the time of retirement.  To receive any payout under the Career Shares Program, grantees must be at least years 55 years old and must have been continually employed by the Issuer for a minimum of 10 years.  Retirement after 10 years of service will entitle a grantee to 50 percent of his or her Career Restricted Stock Units.  This increases to 75 percent after 15 years and 100 percent following 20 years of employment.  In the event of grantee's death or permanent disability, or following a change in control of Issuer, the grantee will be deemed to have attained age 55 and the Career Restricted Stock Units will immediately vest and convert into shares of Issuer common stock based on the grantee's years of continuous service through the date of death, termination resulting from permanent disability or the change in control, as applicable."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":15264},"source":{"system":"sec-edgar","filing":"0001186747-17-000012","document":"edgar.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":18,"url":"https://www.sec.gov/Archives/edgar/data/906553/000118674717000012/edgar.xml","form_type":"4"}},{"id":4446670,"issuer":{"id":3838,"kind":"organization","name":"BOYD GAMING CORP"},"owners":[{"id":129947,"kind":"person","name":"BOUGHNER ROBERT L","position":1,"cik":"0001186736","reported_name":"BOUGHNER ROBERT L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Career Restricted Stock Units","published_at":"2017-02-16T01:28:07.000Z","date":"2017-02-13","kind":"exercise","acquired":true,"shares":19186,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"The Career Restricted Stock Units were granted to the Reporting Person for no consideration pursuant to the Issuer's Career Shares Program under its 2002 Stock Incentive Plan.  Each Career Restricted Stock Unit converted into common stock on a one-for-one basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The Career Restricted Stock Units will be paid out in shares of Issuer common stock at the time of retirement based upon the Reporting Person's/grantee's attained age and years of continuous service at the time of retirement.  To receive any payout under the Career Shares Program, grantees must be at least years 55 years old and must have been continually employed by the Issuer for a minimum of 10 years.  Retirement after 10 years of service will entitle a grantee to 50 percent of his or her Career Restricted Stock Units.  This increases to 75 percent after 15 years and 100 percent following 20 years of employment.  In the event of grantee's death or permanent disability, or following a change in control of Issuer, the grantee will be deemed to have attained age 55 and the Career Restricted Stock Units will immediately vest and convert into shares of Issuer common stock based on the grantee's years of continuous service through the date of death, termination resulting from permanent disability or the change in control, as applicable."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"On January 4, 2010, the reporting person was granted 19,186 Career Restricted Stock Units."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The Career Restricted Stock Units will be paid out in shares of Issuer common stock at the time of retirement based upon the Reporting Person's/grantee's attained age and years of continuous service at the time of retirement.  To receive any payout under the Career Shares Program, grantees must be at least years 55 years old and must have been continually employed by the Issuer for a minimum of 10 years.  Retirement after 10 years of service will entitle a grantee to 50 percent of his or her Career Restricted Stock Units.  This increases to 75 percent after 15 years and 100 percent following 20 years of employment.  In the event of grantee's death or permanent disability, or following a change in control of Issuer, the grantee will be deemed to have attained age 55 and the Career Restricted Stock Units will immediately vest and convert into shares of Issuer common stock based on the grantee's years of continuous service through the date of death, termination resulting from permanent disability or the change in control, as applicable."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":19186},"source":{"system":"sec-edgar","filing":"0001186747-17-000012","document":"edgar.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":17,"url":"https://www.sec.gov/Archives/edgar/data/906553/000118674717000012/edgar.xml","form_type":"4"}},{"id":4446669,"issuer":{"id":3838,"kind":"organization","name":"BOYD GAMING CORP"},"owners":[{"id":129947,"kind":"person","name":"BOUGHNER ROBERT L","position":1,"cik":"0001186736","reported_name":"BOUGHNER ROBERT L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Career Restricted Stock Units","published_at":"2017-02-16T01:28:07.000Z","date":"2017-02-13","kind":"exercise","acquired":true,"shares":33000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"The Career Restricted Stock Units were granted to the Reporting Person for no consideration pursuant to the Issuer's Career Shares Program under its 2002 Stock Incentive Plan.  Each Career Restricted Stock Unit converted into common stock on a one-for-one basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The Career Restricted Stock Units will be paid out in shares of Issuer common stock at the time of retirement based upon the Reporting Person's/grantee's attained age and years of continuous service at the time of retirement.  To receive any payout under the Career Shares Program, grantees must be at least years 55 years old and must have been continually employed by the Issuer for a minimum of 10 years.  Retirement after 10 years of service will entitle a grantee to 50 percent of his or her Career Restricted Stock Units.  This increases to 75 percent after 15 years and 100 percent following 20 years of employment.  In the event of grantee's death or permanent disability, or following a change in control of Issuer, the grantee will be deemed to have attained age 55 and the Career Restricted Stock Units will immediately vest and convert into shares of Issuer common stock based on the grantee's years of continuous service through the date of death, termination resulting from permanent disability or the change in control, as applicable."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"On January 2, 2009, the reporting person was granted 33,000 Career Restricted Stock Units."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The Career Restricted Stock Units will be paid out in shares of Issuer common stock at the time of retirement based upon the Reporting Person's/grantee's attained age and years of continuous service at the time of retirement.  To receive any payout under the Career Shares Program, grantees must be at least years 55 years old and must have been continually employed by the Issuer for a minimum of 10 years.  Retirement after 10 years of service will entitle a grantee to 50 percent of his or her Career Restricted Stock Units.  This increases to 75 percent after 15 years and 100 percent following 20 years of employment.  In the event of grantee's death or permanent disability, or following a change in control of Issuer, the grantee will be deemed to have attained age 55 and the Career Restricted Stock Units will immediately vest and convert into shares of Issuer common stock based on the grantee's years of continuous service through the date of death, termination resulting from permanent disability or the change in control, as applicable."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":33000},"source":{"system":"sec-edgar","filing":"0001186747-17-000012","document":"edgar.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":16,"url":"https://www.sec.gov/Archives/edgar/data/906553/000118674717000012/edgar.xml","form_type":"4"}},{"id":4446668,"issuer":{"id":3838,"kind":"organization","name":"BOYD GAMING CORP"},"owners":[{"id":129947,"kind":"person","name":"BOUGHNER ROBERT L","position":1,"cik":"0001186736","reported_name":"BOUGHNER ROBERT L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Career Restricted Stock Units","published_at":"2017-02-16T01:28:07.000Z","date":"2017-02-13","kind":"exercise","acquired":true,"shares":4728,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"The Career Restricted Stock Units were granted to the Reporting Person for no consideration pursuant to the Issuer's Career Shares Program under its 2002 Stock Incentive Plan.  Each Career Restricted Stock Unit converted into common stock on a one-for-one basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The Career Restricted Stock Units will be paid out in shares of Issuer common stock at the time of retirement based upon the Reporting Person's/grantee's attained age and years of continuous service at the time of retirement.  To receive any payout under the Career Shares Program, grantees must be at least years 55 years old and must have been continually employed by the Issuer for a minimum of 10 years.  Retirement after 10 years of service will entitle a grantee to 50 percent of his or her Career Restricted Stock Units.  This increases to 75 percent after 15 years and 100 percent following 20 years of employment.  In the event of grantee's death or permanent disability, or following a change in control of Issuer, the grantee will be deemed to have attained age 55 and the Career Restricted Stock Units will immediately vest and convert into shares of Issuer common stock based on the grantee's years of continuous service through the date of death, termination resulting from permanent disability or the change in control, as applicable."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"On January 2, 2008, the reporting person was granted 4,728 Career Restricted Stock Units."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The Career Restricted Stock Units will be paid out in shares of Issuer common stock at the time of retirement based upon the Reporting Person's/grantee's attained age and years of continuous service at the time of retirement.  To receive any payout under the Career Shares Program, grantees must be at least years 55 years old and must have been continually employed by the Issuer for a minimum of 10 years.  Retirement after 10 years of service will entitle a grantee to 50 percent of his or her Career Restricted Stock Units.  This increases to 75 percent after 15 years and 100 percent following 20 years of employment.  In the event of grantee's death or permanent disability, or following a change in control of Issuer, the grantee will be deemed to have attained age 55 and the Career Restricted Stock Units will immediately vest and convert into shares of Issuer common stock based on the grantee's years of continuous service through the date of death, termination resulting from permanent disability or the change in control, as applicable."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":4728},"source":{"system":"sec-edgar","filing":"0001186747-17-000012","document":"edgar.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":15,"url":"https://www.sec.gov/Archives/edgar/data/906553/000118674717000012/edgar.xml","form_type":"4"}},{"id":4446667,"issuer":{"id":3838,"kind":"organization","name":"BOYD GAMING CORP"},"owners":[{"id":129947,"kind":"person","name":"BOUGHNER ROBERT L","position":1,"cik":"0001186736","reported_name":"BOUGHNER ROBERT L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Career Restricted Stock Units","published_at":"2017-02-16T01:28:07.000Z","date":"2017-02-13","kind":"exercise","acquired":true,"shares":3264,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"The Career Restricted Stock Units were granted to the Reporting Person for no consideration pursuant to the Issuer's Career Shares Program under its 2002 Stock Incentive Plan.  Each Career Restricted Stock Unit converted into common stock on a one-for-one basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The Career Restricted Stock Units will be paid out in shares of Issuer common stock at the time of retirement based upon the Reporting Person's/grantee's attained age and years of continuous service at the time of retirement.  To receive any payout under the Career Shares Program, grantees must be at least years 55 years old and must have been continually employed by the Issuer for a minimum of 10 years.  Retirement after 10 years of service will entitle a grantee to 50 percent of his or her Career Restricted Stock Units.  This increases to 75 percent after 15 years and 100 percent following 20 years of employment.  In the event of grantee's death or permanent disability, or following a change in control of Issuer, the grantee will be deemed to have attained age 55 and the Career Restricted Stock Units will immediately vest and convert into shares of Issuer common stock based on the grantee's years of continuous service through the date of death, termination resulting from permanent disability or the change in control, as applicable."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"On January 2, 2007, the reporting person was granted 3,264 Career Restricted Stock Units."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The Career Restricted Stock Units will be paid out in shares of Issuer common stock at the time of retirement based upon the Reporting Person's/grantee's attained age and years of continuous service at the time of retirement.  To receive any payout under the Career Shares Program, grantees must be at least years 55 years old and must have been continually employed by the Issuer for a minimum of 10 years.  Retirement after 10 years of service will entitle a grantee to 50 percent of his or her Career Restricted Stock Units.  This increases to 75 percent after 15 years and 100 percent following 20 years of employment.  In the event of grantee's death or permanent disability, or following a change in control of Issuer, the grantee will be deemed to have attained age 55 and the Career Restricted Stock Units will immediately vest and convert into shares of Issuer common stock based on the grantee's years of continuous service through the date of death, termination resulting from permanent disability or the change in control, as applicable."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":3264},"source":{"system":"sec-edgar","filing":"0001186747-17-000012","document":"edgar.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":14,"url":"https://www.sec.gov/Archives/edgar/data/906553/000118674717000012/edgar.xml","form_type":"4"}},{"id":4446666,"issuer":{"id":3838,"kind":"organization","name":"BOYD GAMING CORP"},"owners":[{"id":129947,"kind":"person","name":"BOUGHNER ROBERT L","position":1,"cik":"0001186736","reported_name":"BOUGHNER ROBERT L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-02-16T01:28:07.000Z","date":"2017-02-13","kind":"tax_withholding","acquired":false,"shares":103839,"price":20.86,"value":2166081.54,"ownership":{"direct":true},"balance_after":199107,"source":{"system":"sec-edgar","filing":"0001186747-17-000012","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":11,"url":"https://www.sec.gov/Archives/edgar/data/906553/000118674717000012/edgar.xml","form_type":"4"}},{"id":4446665,"issuer":{"id":3838,"kind":"organization","name":"BOYD GAMING CORP"},"owners":[{"id":129947,"kind":"person","name":"BOUGHNER ROBERT L","position":1,"cik":"0001186736","reported_name":"BOUGHNER ROBERT L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-02-16T01:28:07.000Z","date":"2017-02-13","kind":"exercise","acquired":true,"shares":9074,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The Career Restricted Stock Units were granted to the Reporting Person for no consideration pursuant to the Issuer's Career Shares Program under its 2012 Stock Incentive Plan.  Each Career Restricted Stock Unit converted into common stock on a one-for-one basis."}],"balance_after":302946,"source":{"system":"sec-edgar","filing":"0001186747-17-000012","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/906553/000118674717000012/edgar.xml","form_type":"4"}},{"id":4446664,"issuer":{"id":3838,"kind":"organization","name":"BOYD GAMING CORP"},"owners":[{"id":129947,"kind":"person","name":"BOUGHNER ROBERT L","position":1,"cik":"0001186736","reported_name":"BOUGHNER ROBERT L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-02-16T01:28:07.000Z","date":"2017-02-13","kind":"exercise","acquired":true,"shares":13489,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The Career Restricted Stock Units were granted to the Reporting Person for no consideration pursuant to the Issuer's Career Shares Program under its 2012 Stock Incentive Plan.  Each Career Restricted Stock Unit converted into common stock on a one-for-one basis."}],"balance_after":293872,"source":{"system":"sec-edgar","filing":"0001186747-17-000012","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/906553/000118674717000012/edgar.xml","form_type":"4"}},{"id":4446663,"issuer":{"id":3838,"kind":"organization","name":"BOYD GAMING CORP"},"owners":[{"id":129947,"kind":"person","name":"BOUGHNER ROBERT L","position":1,"cik":"0001186736","reported_name":"BOUGHNER ROBERT L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-02-16T01:28:07.000Z","date":"2017-02-13","kind":"exercise","acquired":true,"shares":14589,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The Career Restricted Stock Units were granted to the Reporting Person for no consideration pursuant to the Issuer's Career Shares Program under its 2012 Stock Incentive Plan.  Each Career Restricted Stock Unit converted into common stock on a one-for-one basis."}],"balance_after":280383,"source":{"system":"sec-edgar","filing":"0001186747-17-000012","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/906553/000118674717000012/edgar.xml","form_type":"4"}},{"id":4446662,"issuer":{"id":3838,"kind":"organization","name":"BOYD GAMING CORP"},"owners":[{"id":129947,"kind":"person","name":"BOUGHNER ROBERT L","position":1,"cik":"0001186736","reported_name":"BOUGHNER ROBERT L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-02-16T01:28:07.000Z","date":"2017-02-13","kind":"exercise","acquired":true,"shares":24336,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The Career Restricted Stock Units were granted to the Reporting Person for no consideration pursuant to the Issuer's Career Shares Program under its 2012 Stock Incentive Plan.  Each Career Restricted Stock Unit converted into common stock on a one-for-one basis."}],"balance_after":265794,"source":{"system":"sec-edgar","filing":"0001186747-17-000012","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/906553/000118674717000012/edgar.xml","form_type":"4"}},{"id":4446661,"issuer":{"id":3838,"kind":"organization","name":"BOYD GAMING CORP"},"owners":[{"id":129947,"kind":"person","name":"BOUGHNER ROBERT L","position":1,"cik":"0001186736","reported_name":"BOUGHNER ROBERT L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-02-16T01:28:07.000Z","date":"2017-02-13","kind":"exercise","acquired":true,"shares":21456,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The Career Restricted Stock Units were granted to the Reporting Person for no consideration pursuant to the Issuer's Career Shares Program under its 2002 Stock Incentive Plan.  Each Career Restricted Stock Unit converted into common stock on a one-for-one basis."}],"balance_after":241458,"source":{"system":"sec-edgar","filing":"0001186747-17-000012","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/906553/000118674717000012/edgar.xml","form_type":"4"}},{"id":4446660,"issuer":{"id":3838,"kind":"organization","name":"BOYD GAMING CORP"},"owners":[{"id":129947,"kind":"person","name":"BOUGHNER ROBERT L","position":1,"cik":"0001186736","reported_name":"BOUGHNER ROBERT L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-02-16T01:28:07.000Z","date":"2017-02-13","kind":"exercise","acquired":true,"shares":15264,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The Career Restricted Stock Units were granted to the Reporting Person for no consideration pursuant to the Issuer's Career Shares Program under its 2002 Stock Incentive Plan.  Each Career Restricted Stock Unit converted into common stock on a one-for-one basis."}],"balance_after":220002,"source":{"system":"sec-edgar","filing":"0001186747-17-000012","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/906553/000118674717000012/edgar.xml","form_type":"4"}},{"id":4446659,"issuer":{"id":3838,"kind":"organization","name":"BOYD GAMING CORP"},"owners":[{"id":129947,"kind":"person","name":"BOUGHNER ROBERT L","position":1,"cik":"0001186736","reported_name":"BOUGHNER ROBERT L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-02-16T01:28:07.000Z","date":"2017-02-13","kind":"exercise","acquired":true,"shares":19186,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The Career Restricted Stock Units were granted to the Reporting Person for no consideration pursuant to the Issuer's Career Shares Program under its 2002 Stock Incentive Plan.  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