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Nonqualified Excess Plan were cancelled in exchange for 110 Shares and 1,187 New Existing Equity Warrants."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"On the Effective Date and pursuant to the Plan, the reporting person's 42,047.26 shares of Predecessor Common Stock underlying the Phantom Stock units held in a \"Rabbi\" trust to hold the stock portion of the reporting person's benefits under the Issuer's Executive Nonqualified Excess Plan were cancelled in exchange for 110 Shares and 1,187 New Existing Equity Warrants."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"On the Effective Date and pursuant to the Plan, the reporting person's 42,047.26 shares of Predecessor Common Stock underlying the Phantom Stock units held in a \"Rabbi\" trust to hold the stock portion of the reporting person's benefits under the Issuer's Executive Nonqualified Excess Plan were cancelled in exchange for 110 Shares and 1,187 New Existing Equity Warrants."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"On the Effective Date and pursuant to the Plan, the reporting person's 42,047.26 shares of Predecessor Common Stock underlying the Phantom Stock units held in a \"Rabbi\" trust to hold the stock portion of the reporting person's benefits under the Issuer's Executive Nonqualified Excess Plan were cancelled in exchange for 110 Shares and 1,187 New Existing Equity Warrants."}],"balance_after":110,"derivative":{"underlying":"Common Stock","underlying_shares":110},"source":{"system":"sec-edgar","filing":"0001437749-18-005601","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1030749/000143774918005601/rdgdoc.xml","form_type":"5"}},{"id":3982270,"issuer":{"id":162347,"kind":"organization","name":"GULFMARK OFFSHORE INC","symbol":"GLF"},"owners":[{"id":81611,"kind":"person","name":"Darling 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person's benefits under the Issuer's Executive Nonqualified Excess Plan were cancelled in exchange for 110 Shares and 1,187 New Existing Equity Warrants."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"On the Effective Date and pursuant to the Plan, the reporting person's 42,047.26 shares of Predecessor Common Stock underlying the Phantom Stock units held in a \"Rabbi\" trust to hold the stock portion of the reporting person's benefits under the Issuer's Executive Nonqualified Excess Plan were cancelled in exchange for 110 Shares and 1,187 New Existing Equity Warrants."}],"balance_after":0,"derivative":{"underlying":"Class A Common 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Phantom Stock units held in a \"Rabbi\" trust to hold the stock portion of the reporting person's benefits under the Issuer's Executive Nonqualified Excess Plan were cancelled in exchange for 110 Shares and 1,187 New Existing Equity Warrants."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"On the Effective Date and pursuant to the Plan, the reporting person's 42,047.26 shares of Predecessor Common Stock underlying the Phantom Stock units held in a \"Rabbi\" trust to hold the stock portion of the reporting person's benefits under the Issuer's Executive Nonqualified Excess Plan were cancelled in exchange for 110 Shares and 1,187 New Existing Equity Warrants."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"On the Effective Date and pursuant to the Plan, the reporting person's 42,047.26 shares of Predecessor Common Stock underlying the Phantom Stock units held in a \"Rabbi\" trust to hold the stock portion of the reporting person's benefits under the Issuer's Executive Nonqualified Excess Plan were cancelled in exchange for 110 Shares and 1,187 New Existing Equity Warrants."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"On the Effective Date and pursuant to the Plan, the reporting person's 42,047.26 shares of Predecessor Common Stock underlying the Phantom Stock units held in a \"Rabbi\" trust to hold the stock portion of the reporting person's benefits under the Issuer's Executive Nonqualified Excess Plan were cancelled in exchange for 110 Shares and 1,187 New Existing Equity Warrants."}],"balance_after":2641,"derivative":{"exercise_price":100,"underlying":"Common 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\"Plan\")."},{"field":"kind","element":"transactionCoding","label":"F3","text":"On the Effective Date, all Predecessor Common Stock was canceled and each holder of such Predecessor Common Stock, including the reporting person, received his pro rata share of (a) new shares of  the Issuer's common stock (\"Shares\"), representing in the aggregate 0.75% of the Shares, or as applicable, certain warrants (the \"Reorganized GulfMark Equity\"), subject to dilution by the Reorganized GulfMark Equity issued or issuable under the Issuer's management incentive plan (the \"MIP\") and upon exercise of the New Existing Equity Warrants (as defined below), and (b) warrants for 7.5% of the equity in the reorganized Issuer subject to dilution by the Reorganized GulfMark Equity issued or issuable under the MIP, with an exercise price based on an equity value of $1 billion (the \"New Existing Equity Warrants\").  Accordingly, the reporting person's 49,630 shares of Predecessor Common Stock were canceled and he received 135 Shares and New Existing Equity Warrants to purchase 1,454 Shares."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"On the Effective Date, all Predecessor Common Stock was canceled and each holder of such Predecessor Common Stock, including the reporting person, received his pro rata share of (a) new shares of  the Issuer's common stock (\"Shares\"), representing in the aggregate 0.75% of the Shares, or as applicable, certain warrants (the \"Reorganized GulfMark Equity\"), subject to dilution by the Reorganized GulfMark Equity issued or issuable under the Issuer's management incentive plan (the \"MIP\") and upon exercise of the New Existing Equity Warrants (as defined below), and (b) warrants for 7.5% of the equity in the reorganized Issuer subject to dilution by the Reorganized GulfMark Equity issued or issuable under the MIP, with an exercise price based on an equity value of $1 billion (the \"New Existing Equity Warrants\").  Accordingly, the reporting person's 49,630 shares of Predecessor Common Stock were canceled and he received 135 Shares and New Existing Equity Warrants to purchase 1,454 Shares."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"On the Effective Date, all Predecessor Common Stock was canceled and each holder of such Predecessor Common Stock, including the reporting person, received his pro rata share of (a) new shares of  the Issuer's common stock (\"Shares\"), representing in the aggregate 0.75% of the Shares, or as applicable, certain warrants (the \"Reorganized GulfMark Equity\"), subject to dilution by the Reorganized GulfMark Equity issued or issuable under the Issuer's management incentive plan (the \"MIP\") and upon exercise of the New Existing Equity Warrants (as defined below), and (b) warrants for 7.5% of the equity in the reorganized Issuer subject to dilution by the Reorganized GulfMark Equity issued or issuable under the MIP, with an exercise price based on an equity value of $1 billion (the \"New Existing Equity Warrants\").  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Accordingly, the reporting person's 49,630 shares of Predecessor Common Stock were canceled and he received 135 Shares and New Existing Equity Warrants to purchase 1,454 Shares."}],"balance_after":1454,"derivative":{"exercise_price":100,"underlying":"Common Stock","underlying_shares":1454},"source":{"system":"sec-edgar","filing":"0001437749-18-005601","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1030749/000143774918005601/rdgdoc.xml","form_type":"5"}},{"id":3982267,"issuer":{"id":162347,"kind":"organization","name":"GULFMARK OFFSHORE INC","symbol":"GLF"},"owners":[{"id":81611,"kind":"person","name":"Darling David E","position":1,"cik":"0001488598","reported_name":"Darling David E","relationship":{"officer":true,"officer_title":"Former SVP - CHRO"}}],"security":"Common Stock, $0.01 par value","published_at":"2018-03-27T17:30:18.000Z","date":"2017-11-14","kind":"other","acquired":true,"shares":135,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Effective November 14, 2017 (the \"Effective Date\"), the Issuer emerged from bankruptcy pursuant to a Chapter 11 Plan (the \"Plan\")."},{"field":"kind","element":"transactionCoding","label":"F3","text":"On the Effective Date, all Predecessor Common Stock was canceled and each holder of such Predecessor Common Stock, including the reporting person, received his pro rata share of (a) new shares of  the Issuer's common stock (\"Shares\"), representing in the aggregate 0.75% of the Shares, or as applicable, certain warrants (the \"Reorganized GulfMark Equity\"), subject to dilution by the Reorganized GulfMark Equity issued or issuable under the Issuer's management incentive plan (the \"MIP\") and upon exercise of the New Existing Equity Warrants (as defined below), and (b) warrants for 7.5% of the equity in the reorganized Issuer subject to dilution by the Reorganized GulfMark Equity issued or issuable under the MIP, with an exercise price based on an equity value of $1 billion (the \"New Existing Equity Warrants\").  Accordingly, the reporting person's 49,630 shares of Predecessor Common Stock were canceled and he received 135 Shares and New Existing Equity Warrants to purchase 1,454 Shares."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"On the Effective Date, all Predecessor Common Stock was canceled and each holder of such Predecessor Common Stock, including the reporting person, received his pro rata share of (a) new shares of  the Issuer's common stock (\"Shares\"), representing in the aggregate 0.75% of the Shares, or as applicable, certain warrants (the \"Reorganized GulfMark Equity\"), subject to dilution by the Reorganized GulfMark Equity issued or issuable under the Issuer's management incentive plan (the \"MIP\") and upon exercise of the New Existing Equity Warrants (as defined below), and (b) warrants for 7.5% of the equity in the reorganized Issuer subject to dilution by the Reorganized GulfMark Equity issued or issuable under the MIP, with an exercise price based on an equity value of $1 billion (the \"New Existing Equity Warrants\").  Accordingly, the reporting person's 49,630 shares of Predecessor Common Stock were canceled and he received 135 Shares and New Existing Equity Warrants to purchase 1,454 Shares."}],"balance_after":135,"source":{"system":"sec-edgar","filing":"0001437749-18-005601","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1030749/000143774918005601/rdgdoc.xml","form_type":"5"}},{"id":3982266,"issuer":{"id":162347,"kind":"organization","name":"GULFMARK OFFSHORE INC","symbol":"GLF"},"owners":[{"id":81611,"kind":"person","name":"Darling David E","position":1,"cik":"0001488598","reported_name":"Darling David E","relationship":{"officer":true,"officer_title":"Former SVP - CHRO"}}],"security":"Class A Common Stock, $0.01 par value","published_at":"2018-03-27T17:30:18.000Z","date":"2017-11-14","kind":"other","acquired":false,"shares":49630,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Effective November 14, 2017 (the \"Effective Date\"), the Issuer emerged from bankruptcy pursuant to a Chapter 11 Plan (the \"Plan\")."},{"field":"kind","element":"transactionCoding","label":"F3","text":"On the Effective Date, all Predecessor Common Stock was canceled and each holder of such Predecessor Common Stock, including the reporting person, received his pro rata share of (a) new shares of  the Issuer's common stock (\"Shares\"), representing in the aggregate 0.75% of the Shares, or as applicable, certain warrants (the \"Reorganized GulfMark Equity\"), subject to dilution by the Reorganized GulfMark Equity issued or issuable under the Issuer's management incentive plan (the \"MIP\") and upon exercise of the New Existing Equity Warrants (as defined below), and (b) warrants for 7.5% of the equity in the reorganized Issuer subject to dilution by the Reorganized GulfMark Equity issued or issuable under the MIP, with an exercise price based on an equity value of $1 billion (the \"New Existing Equity Warrants\").  Accordingly, the reporting person's 49,630 shares of Predecessor Common Stock were canceled and he received 135 Shares and New Existing Equity Warrants to purchase 1,454 Shares."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"On the Effective Date, all Predecessor Common Stock was canceled and each holder of such Predecessor Common Stock, including the reporting person, received his pro rata share of (a) new shares of  the Issuer's common stock (\"Shares\"), representing in the aggregate 0.75% of the Shares, or as applicable, certain warrants (the \"Reorganized GulfMark Equity\"), subject to dilution by the Reorganized GulfMark Equity issued or issuable under the Issuer's management incentive plan (the \"MIP\") and upon exercise of the New Existing Equity Warrants (as defined below), and (b) warrants for 7.5% of the equity in the reorganized Issuer subject to dilution by the Reorganized GulfMark Equity issued or issuable under the MIP, with an exercise price based on an equity value of $1 billion (the \"New Existing Equity Warrants\").  Accordingly, the reporting person's 49,630 shares of Predecessor Common Stock were canceled and he received 135 Shares and New Existing Equity Warrants to purchase 1,454 Shares."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0001437749-18-005601","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1030749/000143774918005601/rdgdoc.xml","form_type":"5"}},{"id":3982265,"issuer":{"id":162347,"kind":"organization","name":"GULFMARK OFFSHORE INC","symbol":"GLF"},"owners":[{"id":81611,"kind":"person","name":"Darling David E","position":1,"cik":"0001488598","reported_name":"Darling David E","relationship":{"officer":true,"officer_title":"Former SVP - CHRO"}}],"security":"Class A Common Stock, $0.01 par value","published_at":"2018-03-27T17:30:18.000Z","date":"2017-10-06","kind":"tax_withholding","acquired":false,"shares":19121,"price":0.183,"value":3499.143,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Transaction was a withholding and sale by the Issuer of a portion of vested restricted Class A Common Stock, $0.01 par value per share, of the Issuer outstanding immediately prior to the Effective Date (\"Predecessor Common Stock\"), to satisfy the reporting person's tax obligations upon the immediate vesting of such shares in anticipation of the Issuer's emergence from bankruptcy."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0001437749-18-005601","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1030749/000143774918005601/rdgdoc.xml","form_type":"5"}},{"id":4370620,"issuer":{"id":162347,"kind":"organization","name":"GULFMARK OFFSHORE INC","symbol":"GLF"},"owners":[{"id":81611,"kind":"person","name":"Darling David E","position":1,"cik":"0001488598","reported_name":"Darling David E","relationship":{"officer":true,"officer_title":"SVP - CHRO"}}],"security":"Common Stock","published_at":"2017-03-28T18:55:23.000Z","date":"2017-03-27","kind":"tax_withholding","acquired":false,"shares":11244,"price":0.365,"value":4104.06,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"Transaction was a withholding of portion of vested restricted share units to satisfy the reporting person's tax withholding obligations upon vesting, pursuant to the award agreement and associated equity incentive plan under which the award was granted."}],"balance_after":68751,"source":{"system":"sec-edgar","filing":"0001437749-17-005455","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1030749/000143774917005455/rdgdoc.xml","form_type":"4"}},{"id":4492362,"issuer":{"id":162347,"kind":"organization","name":"GULFMARK OFFSHORE INC","symbol":"GLF"},"owners":[{"id":81611,"kind":"person","name":"Darling David E","position":1,"cik":"0001488598","reported_name":"Darling David E","relationship":{"officer":true,"officer_title":"SVP - CHRO"}}],"security":"Phantom Stock","published_at":"2017-01-12T19:18:38.000Z","date":"2016-12-30","kind":"grant","acquired":true,"shares":1264.18,"price":1.75,"value":2212.315,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Phantom Stock units credited under the Company's Executive Nonqualified Excess Plan (the \"Plan\"). Participants are always 100% vested in their contributions to the Plan. Employer contributions vest according to the provision of the Plan, which is generally based on years of service (20% per year of credited service). A participant is 100% vested after 5 years of credited service."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Phantom Stock units credited under the Company's Executive Nonqualified Excess Plan (the \"Plan\"). Participants are always 100% vested in their contributions to the Plan. Employer contributions vest according to the provision of the Plan, which is generally based on years of service (20% per year of credited service). A participant is 100% vested after 5 years of credited service."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Phantom Stock units credited under the Company's Executive Nonqualified Excess Plan (the \"Plan\"). Participants are always 100% vested in their contributions to the Plan. Employer contributions vest according to the provision of the Plan, which is generally based on years of service (20% per year of credited service). A participant is 100% vested after 5 years of credited service."}],"balance_after":42047.26,"derivative":{"underlying":"Common Stock","underlying_shares":1264.18},"source":{"system":"sec-edgar","filing":"0001437749-17-000618","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":24,"url":"https://www.sec.gov/Archives/edgar/data/1030749/000143774917000618/rdgdoc.xml","form_type":"5"}},{"id":4492361,"issuer":{"id":162347,"kind":"organization","name":"GULFMARK OFFSHORE INC","symbol":"GLF"},"owners":[{"id":81611,"kind":"person","name":"Darling David E","position":1,"cik":"0001488598","reported_name":"Darling David E","relationship":{"officer":true,"officer_title":"SVP - CHRO"}}],"security":"Phantom Stock","published_at":"2017-01-12T19:18:38.000Z","date":"2016-12-15","kind":"grant","acquired":true,"shares":1348.98,"price":1.64,"value":2212.3272,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Phantom Stock units credited under the Company's Executive Nonqualified Excess Plan (the \"Plan\"). Participants are always 100% vested in their contributions to the Plan. Employer contributions vest according to the provision of the Plan, which is generally based on years of service (20% per year of credited service). A participant is 100% vested after 5 years of credited service."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Phantom Stock units credited under the Company's Executive Nonqualified Excess Plan (the \"Plan\"). Participants are always 100% vested in their contributions to the Plan. Employer contributions vest according to the provision of the Plan, which is generally based on years of service (20% per year of credited service). A participant is 100% vested after 5 years of credited service."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Phantom Stock units credited under the Company's Executive Nonqualified Excess Plan (the \"Plan\"). Participants are always 100% vested in their contributions to the Plan. Employer contributions vest according to the provision of the Plan, which is generally based on years of service (20% per year of credited service). A participant is 100% vested after 5 years of credited service."}],"balance_after":40783.08,"derivative":{"underlying":"Common Stock","underlying_shares":1348.98},"source":{"system":"sec-edgar","filing":"0001437749-17-000618","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":23,"url":"https://www.sec.gov/Archives/edgar/data/1030749/000143774917000618/rdgdoc.xml","form_type":"5"}},{"id":4492360,"issuer":{"id":162347,"kind":"organization","name":"GULFMARK OFFSHORE INC","symbol":"GLF"},"owners":[{"id":81611,"kind":"person","name":"Darling David E","position":1,"cik":"0001488598","reported_name":"Darling David E","relationship":{"officer":true,"officer_title":"SVP - CHRO"}}],"security":"Phantom Stock","published_at":"2017-01-12T19:18:38.000Z","date":"2016-11-30","kind":"grant","acquired":true,"shares":1769.86,"price":1.25,"value":2212.325,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Phantom Stock units credited under the Company's Executive Nonqualified Excess Plan (the \"Plan\"). Participants are always 100% vested in their contributions to the Plan. Employer contributions vest according to the provision of the Plan, which is generally based on years of service (20% per year of credited service). A participant is 100% vested after 5 years of credited service."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Phantom Stock units credited under the Company's Executive Nonqualified Excess Plan (the \"Plan\"). Participants are always 100% vested in their contributions to the Plan. Employer contributions vest according to the provision of the Plan, which is generally based on years of service (20% per year of credited service). A participant is 100% vested after 5 years of credited service."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Phantom Stock units credited under the Company's Executive Nonqualified Excess Plan (the \"Plan\"). Participants are always 100% vested in their contributions to the Plan. Employer contributions vest according to the provision of the Plan, which is generally based on years of service (20% per year of credited service). A participant is 100% vested after 5 years of credited service."}],"balance_after":39434.1,"derivative":{"underlying":"Common Stock","underlying_shares":1769.86},"source":{"system":"sec-edgar","filing":"0001437749-17-000618","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":22,"url":"https://www.sec.gov/Archives/edgar/data/1030749/000143774917000618/rdgdoc.xml","form_type":"5"}},{"id":4492359,"issuer":{"id":162347,"kind":"organization","name":"GULFMARK OFFSHORE INC","symbol":"GLF"},"owners":[{"id":81611,"kind":"person","name":"Darling David E","position":1,"cik":"0001488598","reported_name":"Darling David E","relationship":{"officer":true,"officer_title":"SVP - CHRO"}}],"security":"Phantom Stock","published_at":"2017-01-12T19:18:38.000Z","date":"2016-11-15","kind":"grant","acquired":true,"shares":1638.76,"price":1.35,"value":2212.326,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Phantom Stock units credited under the Company's Executive Nonqualified Excess Plan (the \"Plan\"). Participants are always 100% vested in their contributions to the Plan. Employer contributions vest according to the provision of the Plan, which is generally based on years of service (20% per year of credited service). A participant is 100% vested after 5 years of credited service."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Phantom Stock units credited under the Company's Executive Nonqualified Excess Plan (the \"Plan\"). Participants are always 100% vested in their contributions to the Plan. Employer contributions vest according to the provision of the Plan, which is generally based on years of service (20% per year of credited service). A participant is 100% vested after 5 years of credited service."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Phantom Stock units credited under the Company's Executive Nonqualified Excess Plan (the \"Plan\"). Participants are always 100% vested in their contributions to the Plan. Employer contributions vest according to the provision of the Plan, which is generally based on years of service (20% per year of credited service). A participant is 100% vested after 5 years of credited service."}],"balance_after":37664.24,"derivative":{"underlying":"Common Stock","underlying_shares":1638.76},"source":{"system":"sec-edgar","filing":"0001437749-17-000618","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":21,"url":"https://www.sec.gov/Archives/edgar/data/1030749/000143774917000618/rdgdoc.xml","form_type":"5"}},{"id":4492358,"issuer":{"id":162347,"kind":"organization","name":"GULFMARK OFFSHORE INC","symbol":"GLF"},"owners":[{"id":81611,"kind":"person","name":"Darling David E","position":1,"cik":"0001488598","reported_name":"Darling David E","relationship":{"officer":true,"officer_title":"SVP - CHRO"}}],"security":"Phantom Stock","published_at":"2017-01-12T19:18:38.000Z","date":"2016-10-31","kind":"grant","acquired":true,"shares":1923.76,"price":1.15,"value":2212.324,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Phantom Stock units credited under the Company's Executive Nonqualified Excess Plan (the \"Plan\"). Participants are always 100% vested in their contributions to the Plan. Employer contributions vest according to the provision of the Plan, which is generally based on years of service (20% per year of credited service). A participant is 100% vested after 5 years of credited service."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Phantom Stock units credited under the Company's Executive Nonqualified Excess Plan (the \"Plan\"). Participants are always 100% vested in their contributions to the Plan. Employer contributions vest according to the provision of the Plan, which is generally based on years of service (20% per year of credited service). A participant is 100% vested after 5 years of credited service."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Phantom Stock units credited under the Company's Executive Nonqualified Excess Plan (the \"Plan\"). Participants are always 100% vested in their contributions to the Plan. Employer contributions vest according to the provision of the Plan, which is generally based on years of service (20% per year of credited service). A participant is 100% vested after 5 years of credited service."}],"balance_after":36025.48,"derivative":{"underlying":"Common Stock","underlying_shares":1923.76},"source":{"system":"sec-edgar","filing":"0001437749-17-000618","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":20,"url":"https://www.sec.gov/Archives/edgar/data/1030749/000143774917000618/rdgdoc.xml","form_type":"5"}},{"id":4492357,"issuer":{"id":162347,"kind":"organization","name":"GULFMARK OFFSHORE INC","symbol":"GLF"},"owners":[{"id":81611,"kind":"person","name":"Darling David E","position":1,"cik":"0001488598","reported_name":"Darling David E","relationship":{"officer":true,"officer_title":"SVP - CHRO"}}],"security":"Phantom Stock","published_at":"2017-01-12T19:18:38.000Z","date":"2016-10-14","kind":"grant","acquired":true,"shares":1474.88,"price":1.5,"value":2212.32,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Phantom Stock units credited under the Company's Executive Nonqualified Excess Plan (the \"Plan\"). Participants are always 100% vested in their contributions to the Plan. Employer contributions vest according to the provision of the Plan, which is generally based on years of service (20% per year of credited service). A participant is 100% vested after 5 years of credited service."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Phantom Stock units credited under the Company's Executive Nonqualified Excess Plan (the \"Plan\"). Participants are always 100% vested in their contributions to the Plan. Employer contributions vest according to the provision of the Plan, which is generally based on years of service (20% per year of credited service). A participant is 100% vested after 5 years of credited service."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Phantom Stock units credited under the Company's Executive Nonqualified Excess Plan (the \"Plan\"). Participants are always 100% vested in their contributions to the Plan. Employer contributions vest according to the provision of the Plan, which is generally based on years of service (20% per year of credited service). A participant is 100% vested after 5 years of credited service."}],"balance_after":34101.72,"derivative":{"underlying":"Common Stock","underlying_shares":1474.88},"source":{"system":"sec-edgar","filing":"0001437749-17-000618","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":19,"url":"https://www.sec.gov/Archives/edgar/data/1030749/000143774917000618/rdgdoc.xml","form_type":"5"}},{"id":4492356,"issuer":{"id":162347,"kind":"organization","name":"GULFMARK OFFSHORE INC","symbol":"GLF"},"owners":[{"id":81611,"kind":"person","name":"Darling David E","position":1,"cik":"0001488598","reported_name":"Darling David E","relationship":{"officer":true,"officer_title":"SVP - CHRO"}}],"security":"Phantom Stock","published_at":"2017-01-12T19:18:38.000Z","date":"2016-09-30","kind":"grant","acquired":true,"shares":1316.86,"price":1.68,"value":2212.3248,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Phantom Stock units credited under the Company's Executive Nonqualified Excess Plan (the \"Plan\"). Participants are always 100% vested in their contributions to the Plan. Employer contributions vest according to the provision of the Plan, which is generally based on years of service (20% per year of credited service). A participant is 100% vested after 5 years of credited service."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Phantom Stock units credited under the Company's Executive Nonqualified Excess Plan (the \"Plan\"). Participants are always 100% vested in their contributions to the Plan. Employer contributions vest according to the provision of the Plan, which is generally based on years of service (20% per year of credited service). A participant is 100% vested after 5 years of credited service."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Phantom Stock units credited under the Company's Executive Nonqualified Excess Plan (the \"Plan\"). Participants are always 100% vested in their contributions to the Plan. Employer contributions vest according to the provision of the Plan, which is generally based on years of service (20% per year of credited service). A participant is 100% vested after 5 years of credited service."}],"balance_after":32626.84,"derivative":{"underlying":"Common Stock","underlying_shares":1316.86},"source":{"system":"sec-edgar","filing":"0001437749-17-000618","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":18,"url":"https://www.sec.gov/Archives/edgar/data/1030749/000143774917000618/rdgdoc.xml","form_type":"5"}},{"id":4492355,"issuer":{"id":162347,"kind":"organization","name":"GULFMARK OFFSHORE INC","symbol":"GLF"},"owners":[{"id":81611,"kind":"person","name":"Darling David E","position":1,"cik":"0001488598","reported_name":"Darling David E","relationship":{"officer":true,"officer_title":"SVP - CHRO"}}],"security":"Phantom Stock","published_at":"2017-01-12T19:18:38.000Z","date":"2016-09-15","kind":"grant","acquired":true,"shares":1128.73,"price":1.96,"value":2212.3108,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Phantom Stock units credited under the Company's Executive Nonqualified Excess Plan (the \"Plan\"). Participants are always 100% vested in their contributions to the Plan. Employer contributions vest according to the provision of the Plan, which is generally based on years of service (20% per year of credited service). A participant is 100% vested after 5 years of credited service."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Phantom Stock units credited under the Company's Executive Nonqualified Excess Plan (the \"Plan\"). Participants are always 100% vested in their contributions to the Plan. Employer contributions vest according to the provision of the Plan, which is generally based on years of service (20% per year of credited service). A participant is 100% vested after 5 years of credited service."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Phantom Stock units credited under the Company's Executive Nonqualified Excess Plan (the \"Plan\"). Participants are always 100% vested in their contributions to the Plan. Employer contributions vest according to the provision of the Plan, which is generally based on years of service (20% per year of credited service). A participant is 100% vested after 5 years of credited service."}],"balance_after":31309.98,"derivative":{"underlying":"Common Stock","underlying_shares":1128.73},"source":{"system":"sec-edgar","filing":"0001437749-17-000618","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":17,"url":"https://www.sec.gov/Archives/edgar/data/1030749/000143774917000618/rdgdoc.xml","form_type":"5"}},{"id":4492354,"issuer":{"id":162347,"kind":"organization","name":"GULFMARK OFFSHORE INC","symbol":"GLF"},"owners":[{"id":81611,"kind":"person","name":"Darling David E","position":1,"cik":"0001488598","reported_name":"Darling David E","relationship":{"officer":true,"officer_title":"SVP - CHRO"}}],"security":"Phantom Stock","published_at":"2017-01-12T19:18:38.000Z","date":"2016-08-31","kind":"grant","acquired":true,"shares":1028.99,"price":2.15,"value":2212.3285,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Phantom Stock units credited under the Company's Executive Nonqualified Excess Plan (the \"Plan\"). Participants are always 100% vested in their contributions to the Plan. Employer contributions vest according to the provision of the Plan, which is generally based on years of service (20% per year of credited service). A participant is 100% vested after 5 years of credited service."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Phantom Stock units credited under the Company's Executive Nonqualified Excess Plan (the \"Plan\"). Participants are always 100% vested in their contributions to the Plan. Employer contributions vest according to the provision of the Plan, which is generally based on years of service (20% per year of credited service). A participant is 100% vested after 5 years of credited service."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Phantom Stock units credited under the Company's Executive Nonqualified Excess Plan (the \"Plan\"). Participants are always 100% vested in their contributions to the Plan. Employer contributions vest according to the provision of the Plan, which is generally based on years of service (20% per year of credited service). 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Participants are always 100% vested in their contributions to the Plan. Employer contributions vest according to the provision of the Plan, which is generally based on years of service (20% per year of credited service). A participant is 100% vested after 5 years of credited service."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Phantom Stock units credited under the Company's Executive Nonqualified Excess Plan (the \"Plan\"). Participants are always 100% vested in their contributions to the Plan. Employer contributions vest according to the provision of the Plan, which is generally based on years of service (20% per year of credited service). A participant is 100% vested after 5 years of credited service."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Phantom Stock units credited under the Company's Executive Nonqualified Excess Plan (the \"Plan\"). Participants are always 100% vested in their contributions to the Plan. Employer contributions vest according to the provision of the Plan, which is generally based on years of service (20% per year of credited service). A participant is 100% vested after 5 years of credited service."}],"balance_after":22389.66,"derivative":{"underlying":"Common Stock","underlying_shares":720.63},"source":{"system":"sec-edgar","filing":"0001437749-17-000618","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1030749/000143774917000618/rdgdoc.xml","form_type":"5"}},{"id":4492340,"issuer":{"id":162347,"kind":"organization","name":"GULFMARK OFFSHORE INC","symbol":"GLF"},"owners":[{"id":81611,"kind":"person","name":"Darling David E","position":1,"cik":"0001488598","reported_name":"Darling David E","relationship":{"officer":true,"officer_title":"SVP - CHRO"}}],"security":"Phantom Stock","published_at":"2017-01-12T19:18:38.000Z","date":"2016-01-29","kind":"grant","acquired":true,"shares":583.73,"price":3.79,"value":2212.3367,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Phantom Stock units credited under the Company's Executive Nonqualified Excess Plan (the \"Plan\"). Participants are always 100% vested in their contributions to the Plan. Employer contributions vest according to the provision of the Plan, which is generally based on years of service (20% per year of credited service). A participant is 100% vested after 5 years of credited service."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Phantom Stock units credited under the Company's Executive Nonqualified Excess Plan (the \"Plan\"). Participants are always 100% vested in their contributions to the Plan. Employer contributions vest according to the provision of the Plan, which is generally based on years of service (20% per year of credited service). A participant is 100% vested after 5 years of credited service."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Phantom Stock units credited under the Company's Executive Nonqualified Excess Plan (the \"Plan\"). Participants are always 100% vested in their contributions to the Plan. Employer contributions vest according to the provision of the Plan, which is generally based on years of service (20% per year of credited service). A participant is 100% vested after 5 years of credited service."}],"balance_after":21669.03,"derivative":{"underlying":"Common Stock","underlying_shares":583.73},"source":{"system":"sec-edgar","filing":"0001437749-17-000618","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1030749/000143774917000618/rdgdoc.xml","form_type":"5"}},{"id":4492339,"issuer":{"id":162347,"kind":"organization","name":"GULFMARK OFFSHORE INC","symbol":"GLF"},"owners":[{"id":81611,"kind":"person","name":"Darling David E","position":1,"cik":"0001488598","reported_name":"Darling David E","relationship":{"officer":true,"officer_title":"SVP - CHRO"}}],"security":"Phantom Stock","published_at":"2017-01-12T19:18:38.000Z","date":"2016-01-15","kind":"grant","acquired":true,"shares":784.51,"price":2.82,"value":2212.3182,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Phantom Stock units credited under the Company's Executive Nonqualified Excess Plan (the \"Plan\"). Participants are always 100% vested in their contributions to the Plan. Employer contributions vest according to the provision of the Plan, which is generally based on years of service (20% per year of credited service). A participant is 100% vested after 5 years of credited service."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Phantom Stock units credited under the Company's Executive Nonqualified Excess Plan (the \"Plan\"). Participants are always 100% vested in their contributions to the Plan. Employer contributions vest according to the provision of the Plan, which is generally based on years of service (20% per year of credited service). A participant is 100% vested after 5 years of credited service."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Phantom Stock units credited under the Company's Executive Nonqualified Excess Plan (the \"Plan\"). Participants are always 100% vested in their contributions to the Plan. Employer contributions vest according to the provision of the Plan, which is generally based on years of service (20% per year of credited service). A participant is 100% vested after 5 years of credited service."}],"balance_after":21085.3,"derivative":{"underlying":"Common Stock","underlying_shares":784.51},"source":{"system":"sec-edgar","filing":"0001437749-17-000618","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1030749/000143774917000618/rdgdoc.xml","form_type":"5"}}]}