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February 24, 2021 and February 24, 2022."}],"balance_after":13140,"source":{"system":"sec-edgar","filing":"0001209191-20-025579","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1691303/000120919120025579/doc4.xml","form_type":"4"}},{"id":3502555,"issuer":{"id":3831,"kind":"organization","name":"WARRIOR MET COAL, INC."},"owners":[{"id":20842,"kind":"person","name":"Williams Stephen D.","position":1,"cik":"0001702386","reported_name":"Williams Stephen D.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2019-06-04T23:21:48.000Z","date":"2019-06-01","kind":"exercise","acquired":false,"shares":2017,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F5","text":"The restricted stock units were granted to the reporting person under the Warrior Met Coal, Inc. 2017 Equity Incentive Plan and were fully vested as of June 1, 2017, the date of grant. The units will settle in shares of common stock of Warrior Met Coal, Inc. on a one-for-one basis on the earliest of (i) one-third on each of the first three anniversaries of the date of grant; (ii) a change of control; (iii) the reporting person's separation of service with Warrior Met Coal, Inc. or its affiliates; or (iv) the death of the reporting person."},{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the settlement of restricted stock units, which settle into shares of common stock of Warrior Met Coal, Inc. on a one-for-one basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"The restricted stock units were granted to the reporting person under the Warrior Met Coal, Inc. 2017 Equity Incentive Plan and were fully vested as of June 1, 2017, the date of grant. The units will settle in shares of common stock of Warrior Met Coal, Inc. on a one-for-one basis on the earliest of (i) one-third on each of the first three anniversaries of the date of grant; (ii) a change of control; (iii) the reporting person's separation of service with Warrior Met Coal, Inc. or its affiliates; or (iv) the death of the reporting person."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"The restricted stock units were granted to the reporting person under the Warrior Met Coal, Inc. 2017 Equity Incentive Plan and were fully vested as of June 1, 2017, the date of grant. The units will settle in shares of common stock of Warrior Met Coal, Inc. on a one-for-one basis on the earliest of (i) one-third on each of the first three anniversaries of the date of grant; (ii) a change of control; (iii) the reporting person's separation of service with Warrior Met Coal, Inc. or its affiliates; or (iv) the death of the reporting person."}],"balance_after":2019,"derivative":{"underlying":"Common Stock","underlying_shares":2017},"source":{"system":"sec-edgar","filing":"0001247524-19-000252","document":"edgar.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1691303/000124752419000252/edgar.xml","form_type":"4"}},{"id":3502554,"issuer":{"id":3831,"kind":"organization","name":"WARRIOR MET COAL, INC."},"owners":[{"id":20842,"kind":"person","name":"Williams Stephen D.","position":1,"cik":"0001702386","reported_name":"Williams Stephen D.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2019-06-04T23:21:48.000Z","date":"2019-06-01","kind":"exercise","acquired":true,"shares":2017,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents the settlement of restricted stock units, which settle into shares of common stock of Warrior Met Coal, Inc. on a one-for-one basis."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes (i) 5,811 shares of restricted stock granted to the reporting person on April 1, 2016 under the Warrior Met Coal, Inc. 2016 Equity Incentive Plan (the \"2016 Plan\"), which vest in equal installments on April 1, 2020 and April 1, 2021, and (ii) 2,908 shares of restricted stock granted to the reporting person on February 24, 2017 under the 2016 Plan, which vest in equal installments on February 24, 2020, February 24, 2021 and February 24, 2022."}],"balance_after":11504,"source":{"system":"sec-edgar","filing":"0001247524-19-000252","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1691303/000124752419000252/edgar.xml","form_type":"4"}},{"id":3531624,"issuer":{"id":3831,"kind":"organization","name":"WARRIOR MET COAL, INC."},"owners":[{"id":20842,"kind":"person","name":"Williams Stephen D.","position":1,"cik":"0001702386","reported_name":"Williams Stephen D.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2019-05-10T20:57:19.000Z","date":"2019-05-08","kind":"sale","acquired":false,"shares":34000,"price":28.2,"value":958800.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents a weighted average price. These shares were sold in multiple transactions at prices ranging from $28.05 to $28.44, inclusive. The reporting person undertakes to provide to HCC, any security holder of HCC, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within this range."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes (i) 5,811 shares of restricted stock granted to the reporting person on April 1, 2016 under the Warrior Met Coal, Inc. 2016 Equity Incentive Plan (the \"2016 Plan\"), which vest in equal installments on April 1, 2020 and April 1, 2021, and (ii) 2,908 shares of restricted stock granted to the reporting person on February 24, 2017 under the 2016 Plan, which vest in equal installments on February 24, 2020, February 24, 2021 and February 24, 2022."}],"balance_after":9487,"source":{"system":"sec-edgar","filing":"0001247524-19-000240","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1691303/000124752419000240/edgar.xml","form_type":"4"}},{"id":3550207,"issuer":{"id":3831,"kind":"organization","name":"WARRIOR MET COAL, INC."},"owners":[{"id":20842,"kind":"person","name":"Williams Stephen D.","position":1,"cik":"0001702386","reported_name":"Williams Stephen D.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2019-04-24T23:08:34.000Z","date":"2019-04-22","kind":"grant","acquired":true,"shares":4908,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F7","text":"The restricted stock units were granted to the reporting person under the Warrior Met Coal, Inc. 2017 Equity Incentive Plan, and vest in equal installments on each of the first three anniversaries of April 22, 2019, the date of grant."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"The restricted stock units were granted to the reporting person under the Warrior Met Coal, Inc. 2017 Equity Incentive Plan, and vest in equal installments on each of the first three anniversaries of April 22, 2019, the date of grant."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F7","text":"The restricted stock units were granted to the reporting person under the Warrior Met Coal, Inc. 2017 Equity Incentive Plan, and vest in equal installments on each of the first three anniversaries of April 22, 2019, the date of grant."}],"balance_after":4908,"derivative":{"underlying":"Common 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Warrior Met Coal, Inc. 2017 Equity Incentive Plan, and vest in equal installments on each of the first three anniversaries of April 23, 2018, the date of grant."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"The restricted stock units were granted to the reporting person under the Warrior Met Coal, Inc. 2017 Equity Incentive Plan, and vest in equal installments on each of the first three anniversaries of April 23, 2018, the date of grant."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"The restricted stock units were granted to the reporting person under the Warrior Met Coal, Inc. 2017 Equity Incentive Plan, and vest in equal installments on each of the first three anniversaries of April 23, 2018, the date of grant."}],"balance_after":4202,"derivative":{"underlying":"Common 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of Warrior Met Coal, Inc. on a one-for-one basis."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes (i) 5,811 shares of restricted stock granted to the reporting person on April 1, 2016 under the Warrior Met Coal, Inc. 2016 Equity Incentive Plan (the \"2016 Plan\"), which vest in equal installments on April 1, 2020 and April 1, 2021, and (ii) 2,908 shares of restricted stock granted to the reporting person on February 24, 2017 under the 2016 Plan, which vest in equal installments on February 24, 2020, February 24, 2021 and February 24, 2022."}],"balance_after":43487,"source":{"system":"sec-edgar","filing":"0001247524-19-000221","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1691303/000124752419000221/edgar.xml","form_type":"4"}},{"id":3905687,"issuer":{"id":3831,"kind":"organization","name":"WARRIOR MET COAL, 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The units will settle in shares of common stock of Warrior Met Coal, Inc. on a one-for-one basis on the earliest of (i) one-third on each of the first three anniversaries of the date of grant; (ii) a change of control; (iii) the undersigned's separation from service with Warrior Met Coal, Inc. or its affiliates; or (iv) death of the undersigned."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The restricted stock units were granted under the Warrior Met Coal, Inc. 2017 Equity Incentive Plan and will be fully vested as of June 1, 2017, the date of grant. The units will settle in shares of common stock of Warrior Met Coal, Inc. on a one-for-one basis on the earliest of (i) one-third on each of the first three anniversaries of the date of grant; (ii) a change of control; (iii) the undersigned's separation from service with Warrior Met Coal, Inc. or its affiliates; or (iv) death of the undersigned."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The restricted stock units were granted under the Warrior Met Coal, Inc. 2017 Equity Incentive Plan and will be fully vested as of June 1, 2017, the date of grant. The units will settle in shares of common stock of Warrior Met Coal, Inc. on a one-for-one basis on the earliest of (i) one-third on each of the first three anniversaries of the date of grant; (ii) a change of control; (iii) the undersigned's separation from service with Warrior Met Coal, Inc. or its affiliates; or (iv) death of the undersigned."}],"balance_after":4036,"derivative":{"underlying":"Common Stock","underlying_shares":2017},"source":{"system":"sec-edgar","filing":"0001127602-18-019988","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1691303/000112760218019988/form4.xml","form_type":"4"}},{"id":3905686,"issuer":{"id":3831,"kind":"organization","name":"WARRIOR MET COAL, INC."},"owners":[{"id":20842,"kind":"person","name":"Williams Stephen D.","position":1,"cik":"0001702386","reported_name":"Williams Stephen D.","relationship":{"director":true}}],"security":"Common Stock","published_at":"2018-06-05T19:26:21.000Z","date":"2018-06-01","kind":"exercise","acquired":true,"shares":2017,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents the settlement of restricted stock units, which settle into shares of common stock of Warrior Met Coal, Inc. on a one-for-one basis."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes (i) 8,716 shares of restricted stock granted to the reporting person on April 1, 2016 under the Warrior Met Coal, Inc. 2016 Equity Incentive Plan (the \"2016 Plan\"), which vest in equal installments on April 1, 2019, April 1, 2020 and April 1, 2021, and (ii) 3,876 shares of restricted stock granted to the reporting person on February 24, 2017 under the 2016 Plan, which vest in equal installments on February 24, 2019, February 24, 2020, February 24, 2021 and February 24, 2022."}],"balance_after":41387,"source":{"system":"sec-edgar","filing":"0001127602-18-019988","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1691303/000112760218019988/form4.xml","form_type":"4"}},{"id":3934939,"issuer":{"id":3831,"kind":"organization","name":"WARRIOR MET COAL, INC."},"owners":[{"id":20842,"kind":"person","name":"Williams Stephen D.","position":1,"cik":"0001702386","reported_name":"Williams Stephen D.","relationship":{"director":true}}],"security":"Common Stock","published_at":"2018-05-14T21:30:38.000Z","date":"2018-05-10","kind":"grant","acquired":true,"shares":6778,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents the vesting of restricted stock upon the satisfaction of conditions outside of the reporting person's control.  The reporting person was granted (i) 14,526 shares of restricted stock on April 1, 2016 under the Warrior Met Coal, Inc. 2016 Equity Incentive Plan (the \"2016 Plan\"), 5,810 of which vested on May 10, 2018, and (ii) 4,844 shares of restricted stock on February 24, 2017 under the 2016 Plan, 968 of which vested on May 10, 2018."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes (i) 8,716 shares of restricted stock granted to the reporting person on April 1, 2016 under the Warrior Met Coal, Inc. 2016 Equity Incentive Plan (the \"2016 Plan\"), which vest in equal installments on April 1, 2019, April 1, 2020 and April 1, 2021, and (ii) 3,876 shares of restricted stock granted to the reporting person on February 24, 2017 under the 2016 Plan, which vest in equal installments on February 24, 2019, February 24, 2020, February 24, 2021 and February 24, 2022."}],"balance_after":39370,"source":{"system":"sec-edgar","filing":"0001127602-18-017384","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1691303/000112760218017384/form4.xml","form_type":"4"}},{"id":3957240,"issuer":{"id":3831,"kind":"organization","name":"WARRIOR MET COAL, INC."},"owners":[{"id":20842,"kind":"person","name":"Williams Stephen D.","position":1,"cik":"0001702386","reported_name":"Williams Stephen D.","relationship":{"director":true}}],"security":"Restricted Stock Units","published_at":"2018-04-25T21:30:20.000Z","date":"2018-04-23","kind":"grant","acquired":true,"shares":6302,"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 under the Warrior Met Coal, Inc. 2017 Equity Incentive Plan, and vest in equal installments on each of the first three anniversaries of April 23, 2018, the date of grant."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The restricted stock units were granted to the reporting person under the Warrior Met Coal, Inc. 2017 Equity Incentive Plan, and vest in equal installments on each of the first three anniversaries of April 23, 2018, the date of grant."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"The restricted stock units were granted to the reporting person under the Warrior Met Coal, Inc. 2017 Equity Incentive Plan, and vest in equal installments on each of the first three anniversaries of April 23, 2018, the date of grant."}],"balance_after":6302,"derivative":{"underlying":"Common Stock","underlying_shares":6302},"source":{"system":"sec-edgar","filing":"0001127602-18-015253","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1691303/000112760218015253/form4.xml","form_type":"4"}},{"id":4160662,"issuer":{"id":3831,"kind":"organization","name":"WARRIOR MET COAL, INC."},"owners":[{"id":20842,"kind":"person","name":"Williams Stephen D.","position":1,"cik":"0001702386","reported_name":"Williams Stephen D.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-11-16T20:11:58.000Z","date":"2017-11-14","kind":"sale","acquired":false,"shares":18742,"price":28,"value":524776.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $27.83 to $28.10, inclusive. The reporting person undertakes to provide to Warrior Met Coal, Inc., any security holder of Warrior Met Coal, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (1)."}],"balance_after":20000,"source":{"system":"sec-edgar","filing":"0000899243-17-026577","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1691303/000089924317026577/doc4.xml","form_type":"4"}},{"id":4171518,"issuer":{"id":3831,"kind":"organization","name":"WARRIOR MET COAL, INC."},"owners":[{"id":20842,"kind":"person","name":"Williams Stephen D.","position":1,"cik":"0001702386","reported_name":"Williams Stephen D.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-11-07T01:56:22.000Z","date":"2017-11-02","kind":"grant","acquired":true,"shares":38742,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents the vesting of restricted stock upon the satisfaction of conditions outside of Mr. Williams's control. Mr. Williams was granted 14,527 shares and 4,844 shares of restricted stock on April 1, 2016 and February 24, 2017, respectively (the \"Tranche B Shares\"), under the Warrior Met Coal, Inc. 2016 Equity Incentive Plan (the \"2016 Plan\"). Mr. Williams was also granted 14,527 shares and 4,844 shares of restricted stock on April 1, 2016 and February 24, 2017, respectively (the \"Tranche C Shares\"), under the 2016 Plan. Each of the Tranche B Shares and the Tranche C Shares vested and settled into shares of common stock on November 2, 2017."}],"balance_after":38742,"source":{"system":"sec-edgar","filing":"0000899243-17-025481","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1691303/000089924317025481/doc4.xml","form_type":"4"}},{"id":4293105,"issuer":{"id":3831,"kind":"organization","name":"WARRIOR MET COAL, INC."},"owners":[{"id":20842,"kind":"person","name":"Williams Stephen D.","position":1,"cik":"0001702386","reported_name":"Williams Stephen D.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2017-06-05T20:18:13.000Z","date":"2017-06-01","kind":"grant","acquired":true,"shares":6053,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"All of the reported restricted stock units were granted under the Warrior Met Coal, Inc. 2017 Equity Incentive Plan and will be fully vested as of June 1, 2017, the date of grant. The units will settle in shares of common stock of Warrior Met Coal, Inc. on a one-for-one basis on the earliest of (i) one-third on each of the first three anniversaries of the date of grant; (ii) a change of control; (iii) the undersigned's separation from service with Warrior Met Coal, Inc. or its affiliates; or (iv) death of the undersigned."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"All of the reported restricted stock units were granted under the Warrior Met Coal, Inc. 2017 Equity Incentive Plan and will be fully vested as of June 1, 2017, the date of grant. The units will settle in shares of common stock of Warrior Met Coal, Inc. on a one-for-one basis on the earliest of (i) one-third on each of the first three anniversaries of the date of grant; (ii) a change of control; (iii) the undersigned's separation from service with Warrior Met Coal, Inc. or its affiliates; or (iv) death of the undersigned."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"All of the reported restricted stock units were granted under the Warrior Met Coal, Inc. 2017 Equity Incentive Plan and will be fully vested as of June 1, 2017, the date of grant. The units will settle in shares of common stock of Warrior Met Coal, Inc. on a one-for-one basis on the earliest of (i) one-third on each of the first three anniversaries of the date of grant; (ii) a change of control; (iii) the undersigned's separation from service with Warrior Met Coal, Inc. or its affiliates; or (iv) death of the undersigned."}],"balance_after":6053,"derivative":{"underlying":"Common Stock","underlying_shares":6053},"source":{"system":"sec-edgar","filing":"0000899243-17-015302","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1691303/000089924317015302/doc4.xml","form_type":"4"}},{"id":4349809,"issuer":{"id":3831,"kind":"organization","name":"WARRIOR MET COAL, INC."},"owners":[{"id":20842,"kind":"person","name":"Williams Stephen D.","position":1,"cik":"0001702386","reported_name":"Williams Stephen D.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2017-04-19T20:48:29.000Z","date":"2017-04-19","kind":"grant","acquired":true,"shares":13157,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"All of the reported restricted stock units were granted under the Warrior Met Coal, Inc. 2017 Equity Incentive Plan and vested as of April 19, 2017, the date of grant. The units will settle in shares of common stock of Warrior Met Coal, Inc. on a one-for-one basis in a single installment on the earlier to occur of (i) a change of control or (ii) the fifth anniversary of the date of grant."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"All of the reported restricted stock units were granted under the Warrior Met Coal, Inc. 2017 Equity Incentive Plan and vested as of April 19, 2017, the date of grant. The units will settle in shares of common stock of Warrior Met Coal, Inc. on a one-for-one basis in a single installment on the earlier to occur of (i) a change of control or (ii) the fifth anniversary of the date of grant."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"All of the reported restricted stock units were granted under the Warrior Met Coal, Inc. 2017 Equity Incentive Plan and vested as of April 19, 2017, the date of grant. The units will settle in shares of common stock of Warrior Met Coal, Inc. on a one-for-one basis in a single installment on the earlier to occur of (i) a change of control or (ii) the fifth anniversary of the date of grant."}],"balance_after":13157,"derivative":{"underlying":"Common Stock","underlying_shares":13157},"source":{"system":"sec-edgar","filing":"0000899243-17-010539","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1691303/000089924317010539/doc4.xml","form_type":"4"}}]}