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All of the issued and outstanding shares of Bristow Common Stock immediately prior to the Effective Time were cancelled."},{"field":"kind","element":"transactionCoding","label":"F8","text":"Pursuant to the Merger Agreement, each option to purchase Bristow preferred stock, par value $0.0001 (\"Bristow Preferred Stock\"), that was outstanding immediately prior to the Effective Time (\"Bristow Preferred Option\") was, immediately prior to the Effective Time, converted into a Bristow Common Option, which, as of the Effective Time, was assumed and converted into a Replacement Option, subject to the same terms and conditions as were applicable to the corresponding Bristow Preferred Option immediately prior to the Effective Time."},{"field":"price","element":"transactionPricePerShare","label":"F9","text":"Received in exchange for Bristow Preferred Options to acquire 7,762 shares of Bristow Preferred Stock for $36.37 per share, which were converted into Bristow Common Options immediately prior to the Effective Time."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"The Replacement Options vest in four equal annual installments beginning on November 1, 2020, subject to continuous service of the reporting person as of each such vesting date."}],"balance_after":20185,"derivative":{"exercise_price":14.01,"expiration_date":"2029-11-01","underlying":"Common Stock","underlying_shares":20185},"source":{"system":"sec-edgar","filing":"0001127602-20-019623","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1709469/000112760220019623/form4.xml","form_type":"4"}},{"id":3110628,"issuer":{"id":32,"kind":"organization","name":"Bristow Group Inc.","symbol":"VTOL"},"owners":[{"id":61751,"kind":"person","name":"CORBETT ALAN","position":1,"cik":"0001709469","reported_name":"CORBETT ALAN","relationship":{"officer":true,"officer_title":"Senior VP, EAMEA and SAR"}}],"security":"Employee Stock Option (Right to Buy)","published_at":"2020-06-15T21:16:46.000Z","date":"2020-06-11","kind":"grant","acquired":true,"shares":6485,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On June 11, 2020, pursuant to the Agreement and Plan of Merger, dated as of January 23, 2020, as amended (the \"Merger Agreement\"), by and among Era Group Inc. (\"Era\"), Ruby Redux Merger Sub, Inc., a wholly owned subsidiary of Era (\"Merger Sub\"), and Bristow Group Inc. (\"Bristow\"), Merger Sub merged with and into Bristow, with Bristow continuing as the surviving corporation and a direct wholly owned subsidiary of Era (the \"Merger\"). Following the Merger, Era changed its name to Bristow Group Inc. (the \"Combined Company\"). Pursuant to the Merger Agreement, at the effective time of the Merger (the \"Effective Time\"), each holder of Bristow common stock, par value $0.0001 (\"Bristow Common Stock\"), immediately prior to the Effective Time, received, for each share of Bristow Common Stock,  0.502096 shares of Era common stock, par value $0.01 (\"Era Common Stock\") (the \"Merger Consideration\"), and, if applicable, cash in lieu of any fractional shares. All of the issued and outstanding shares of Bristow Common Stock immediately prior to the Effective Time were cancelled."},{"field":"kind","element":"transactionCoding","label":"F5","text":"Pursuant to the Merger Agreement, each option to purchase Bristow Common Stock that was outstanding immediately prior to the Effective Time was, as of the Effective Time, assumed and converted into an option to purchase shares of Era Common Stock (\"Replacement Option\"), subject to the same terms and conditions as were applicable to the corresponding Bristow option immediately prior to the Effective Time."},{"field":"price","element":"transactionPricePerShare","label":"F7","text":"Received in exchange for Bristow Common Options to acquire 12,917 shares of Bristow Common Stock for $14.98 per share."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"The Replacement Options vest in four equal annual installments beginning on November 1, 2020, subject to continuous service of the reporting person as of each such vesting date."}],"balance_after":6485,"derivative":{"exercise_price":29.84,"expiration_date":"2029-11-01","underlying":"Common Stock","underlying_shares":6485},"source":{"system":"sec-edgar","filing":"0001127602-20-019623","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1709469/000112760220019623/form4.xml","form_type":"4"}},{"id":3110627,"issuer":{"id":32,"kind":"organization","name":"Bristow Group Inc.","symbol":"VTOL"},"owners":[{"id":61751,"kind":"person","name":"CORBETT ALAN","position":1,"cik":"0001709469","reported_name":"CORBETT ALAN","relationship":{"officer":true,"officer_title":"Senior VP, EAMEA and SAR"}}],"security":"Common Stock","published_at":"2020-06-15T21:16:46.000Z","date":"2020-06-11","kind":"grant","acquired":true,"shares":40004,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On June 11, 2020, pursuant to the Agreement and Plan of Merger, dated as of January 23, 2020, as amended (the \"Merger Agreement\"), by and among Era Group Inc. (\"Era\"), Ruby Redux Merger Sub, Inc., a wholly owned subsidiary of Era (\"Merger Sub\"), and Bristow Group Inc. (\"Bristow\"), Merger Sub merged with and into Bristow, with Bristow continuing as the surviving corporation and a direct wholly owned subsidiary of Era (the \"Merger\"). Following the Merger, Era changed its name to Bristow Group Inc. (the \"Combined Company\"). Pursuant to the Merger Agreement, at the effective time of the Merger (the \"Effective Time\"), each holder of Bristow common stock, par value $0.0001 (\"Bristow Common Stock\"), immediately prior to the Effective Time, received, for each share of Bristow Common Stock,  0.502096 shares of Era common stock, par value $0.01 (\"Era Common Stock\") (the \"Merger Consideration\"), and, if applicable, cash in lieu of any fractional shares. All of the issued and outstanding shares of Bristow Common Stock immediately prior to the Effective Time were cancelled."},{"field":"kind","element":"transactionCoding","label":"F2","text":"Pursuant to the Merger Agreement, each Bristow restricted stock unit (\"Bristow RSU\") that was outstanding immediately prior to the Effective Time was, as of the Effective Time, assumed and converted into a restricted stock unit in respect of shares of Era Common Stock (\"Replacement RSU\"), in an amount based on the Merger Consideration, subject to the same terms and conditions as were applicable to the corresponding Bristow RSU immediately prior to the Effective Time."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The Replacement RSUs vest in four equal annual installments beginning on November 1, 2020, subject to continuous service of the reporting person as of each such vesting date. The vested Replacement RSUs will settle on the thirtieth day following the first to occur of (i) a Change in Control (as defined in Bristow's Management Incentive Plan) and (ii) October 31, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"Received in exchange for 31,017 Bristow RSUs in connection with the Merger."}],"balance_after":40004,"source":{"system":"sec-edgar","filing":"0001127602-20-019623","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1709469/000112760220019623/form4.xml","form_type":"4"}},{"id":3377220,"issuer":{"id":152407,"kind":"organization","name":"Bristow Group Inc","symbol":"BRSWQ"},"owners":[{"id":61751,"kind":"person","name":"CORBETT ALAN","position":1,"cik":"0001709469","reported_name":"CORBETT ALAN","relationship":{"officer":true,"officer_title":"Senior Vice President, EAMEA"}}],"security":"Employee Stock Option (Right to Buy)","published_at":"2019-11-08T16:56:26.000Z","date":"2019-11-06","kind":"grant","acquired":true,"shares":7762,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On May 11, 2019, Bristow Group Inc. (the \"Company\") and certain of its subsidiaries (together with the Company, the \"Debtors\") filed voluntary petitions (the \"Chapter 11 Cases\") in the United States Bankruptcy Court for the Southern District of Texas, Houston Division (the \"Bankruptcy Court\") seeking relief under Chapter 11 of Title 11 of the United States Code (the \"Bankruptcy Code\"). On August 20, 2019, the Debtors filed an Amended Joint Plan of Reorganization (as subsequently modified on August 22, 2019 and September 30, 2019, the \"Plan\") with the Bankruptcy Court. On October 8, 2019, the Bankruptcy Court entered into an order confirming the Plan. On October 31, 2019 (the \"Effective Date\"), the Plan became effective in accordance with its terms and the Debtors emerged from bankruptcy under the Chapter 11 Cases. On the Effective Date, all of the Company's previously outstanding shares of common stock, par value $0.01, including options, warrants, rights, restricted stock units or other securities or agreements to acquire such common stock, were canceled pursuant to the Plan."},{"field":"kind","element":"transactionCoding","label":"F6","text":"In accordance with the Management Incentive Plan, the reporting person received an award of stock options."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On May 11, 2019, Bristow Group Inc. (the \"Company\") and certain of its subsidiaries (together with the Company, the \"Debtors\") filed voluntary petitions (the \"Chapter 11 Cases\") in the United States Bankruptcy Court for the Southern District of Texas, Houston Division (the \"Bankruptcy Court\") seeking relief under Chapter 11 of Title 11 of the United States Code (the \"Bankruptcy Code\"). On August 20, 2019, the Debtors filed an Amended Joint Plan of Reorganization (as subsequently modified on August 22, 2019 and September 30, 2019, the \"Plan\") with the Bankruptcy Court. On October 8, 2019, the Bankruptcy Court entered into an order confirming the Plan. On October 31, 2019 (the \"Effective Date\"), the Plan became effective in accordance with its terms and the Debtors emerged from bankruptcy under the Chapter 11 Cases. On the Effective Date, all of the Company's previously outstanding shares of common stock, par value $0.01, including options, warrants, rights, restricted stock units or other securities or agreements to acquire such common stock, were canceled pursuant to the Plan."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"In accordance with the Management Incentive Plan, the reporting person received an award of stock options."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"The stock options vest in four equal annual installments beginning on November 1, 2020, subject to continuous service of the reporting person as of each such vesting date."}],"balance_after":7762,"derivative":{"exercise_price":36.37,"expiration_date":"2029-11-01","underlying":"Preferred Stock","underlying_shares":7762},"source":{"system":"sec-edgar","filing":"0001127602-19-032338","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/73887/000112760219032338/form4.xml","form_type":"4"}},{"id":3377219,"issuer":{"id":152407,"kind":"organization","name":"Bristow Group Inc","symbol":"BRSWQ"},"owners":[{"id":61751,"kind":"person","name":"CORBETT ALAN","position":1,"cik":"0001709469","reported_name":"CORBETT ALAN","relationship":{"officer":true,"officer_title":"Senior Vice President, EAMEA"}}],"security":"Employee Stock Option (Right to Buy)","published_at":"2019-11-08T16:56:26.000Z","date":"2019-11-06","kind":"grant","acquired":true,"shares":12917,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On May 11, 2019, Bristow Group Inc. (the \"Company\") and certain of its subsidiaries (together with the Company, the \"Debtors\") filed voluntary petitions (the \"Chapter 11 Cases\") in the United States Bankruptcy Court for the Southern District of Texas, Houston Division (the \"Bankruptcy Court\") seeking relief under Chapter 11 of Title 11 of the United States Code (the \"Bankruptcy Code\"). On August 20, 2019, the Debtors filed an Amended Joint Plan of Reorganization (as subsequently modified on August 22, 2019 and September 30, 2019, the \"Plan\") with the Bankruptcy Court. On October 8, 2019, the Bankruptcy Court entered into an order confirming the Plan. On October 31, 2019 (the \"Effective Date\"), the Plan became effective in accordance with its terms and the Debtors emerged from bankruptcy under the Chapter 11 Cases. On the Effective Date, all of the Company's previously outstanding shares of common stock, par value $0.01, including options, warrants, rights, restricted stock units or other securities or agreements to acquire such common stock, were canceled pursuant to the Plan."},{"field":"kind","element":"transactionCoding","label":"F6","text":"In accordance with the Management Incentive Plan, the reporting person received an award of stock options."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On May 11, 2019, Bristow Group Inc. (the \"Company\") and certain of its subsidiaries (together with the Company, the \"Debtors\") filed voluntary petitions (the \"Chapter 11 Cases\") in the United States Bankruptcy Court for the Southern District of Texas, Houston Division (the \"Bankruptcy Court\") seeking relief under Chapter 11 of Title 11 of the United States Code (the \"Bankruptcy Code\"). On August 20, 2019, the Debtors filed an Amended Joint Plan of Reorganization (as subsequently modified on August 22, 2019 and September 30, 2019, the \"Plan\") with the Bankruptcy Court. On October 8, 2019, the Bankruptcy Court entered into an order confirming the Plan. On October 31, 2019 (the \"Effective Date\"), the Plan became effective in accordance with its terms and the Debtors emerged from bankruptcy under the Chapter 11 Cases. On the Effective Date, all of the Company's previously outstanding shares of common stock, par value $0.01, including options, warrants, rights, restricted stock units or other securities or agreements to acquire such common stock, were canceled pursuant to the Plan."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"In accordance with the Management Incentive Plan, the reporting person received an award of stock options."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"The stock options vest in four equal annual installments beginning on November 1, 2020, subject to continuous service of the reporting person as of each such vesting date."}],"balance_after":12917,"derivative":{"exercise_price":36.37,"expiration_date":"2029-11-01","underlying":"Common Stock","underlying_shares":12917},"source":{"system":"sec-edgar","filing":"0001127602-19-032338","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/73887/000112760219032338/form4.xml","form_type":"4"}},{"id":3377218,"issuer":{"id":152407,"kind":"organization","name":"Bristow Group Inc","symbol":"BRSWQ"},"owners":[{"id":61751,"kind":"person","name":"CORBETT ALAN","position":1,"cik":"0001709469","reported_name":"CORBETT ALAN","relationship":{"officer":true,"officer_title":"Senior Vice President, EAMEA"}}],"security":"Restricted Stock Units","published_at":"2019-11-08T16:56:26.000Z","date":"2019-11-06","kind":"grant","acquired":true,"shares":11642,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each restricted stock unit represents a contingent right to receive one share of new preferred stock of the Company, as reorganized pursuant to and under the Plan, par value $0.0001 per share."},{"field":"kind","element":"transactionCoding","label":"F1","text":"On May 11, 2019, Bristow Group Inc. (the \"Company\") and certain of its subsidiaries (together with the Company, the \"Debtors\") filed voluntary petitions (the \"Chapter 11 Cases\") in the United States Bankruptcy Court for the Southern District of Texas, Houston Division (the \"Bankruptcy Court\") seeking relief under Chapter 11 of Title 11 of the United States Code (the \"Bankruptcy Code\"). On August 20, 2019, the Debtors filed an Amended Joint Plan of Reorganization (as subsequently modified on August 22, 2019 and September 30, 2019, the \"Plan\") with the Bankruptcy Court. On October 8, 2019, the Bankruptcy Court entered into an order confirming the Plan. On October 31, 2019 (the \"Effective Date\"), the Plan became effective in accordance with its terms and the Debtors emerged from bankruptcy under the Chapter 11 Cases. On the Effective Date, all of the Company's previously outstanding shares of common stock, par value $0.01, including options, warrants, rights, restricted stock units or other securities or agreements to acquire such common stock, were canceled pursuant to the Plan."},{"field":"kind","element":"transactionCoding","label":"F4","text":"In accordance with a Management Incentive Plan adopted by the Company pursuant to the Plan (the \"Management Incentive Plan\"), the reporting person received an award of restricted stock units"},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On May 11, 2019, Bristow Group Inc. (the \"Company\") and certain of its subsidiaries (together with the Company, the \"Debtors\") filed voluntary petitions (the \"Chapter 11 Cases\") in the United States Bankruptcy Court for the Southern District of Texas, Houston Division (the \"Bankruptcy Court\") seeking relief under Chapter 11 of Title 11 of the United States Code (the \"Bankruptcy Code\"). On August 20, 2019, the Debtors filed an Amended Joint Plan of Reorganization (as subsequently modified on August 22, 2019 and September 30, 2019, the \"Plan\") with the Bankruptcy Court. On October 8, 2019, the Bankruptcy Court entered into an order confirming the Plan. On October 31, 2019 (the \"Effective Date\"), the Plan became effective in accordance with its terms and the Debtors emerged from bankruptcy under the Chapter 11 Cases. On the Effective Date, all of the Company's previously outstanding shares of common stock, par value $0.01, including options, warrants, rights, restricted stock units or other securities or agreements to acquire such common stock, were canceled pursuant to the Plan."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"In accordance with a Management Incentive Plan adopted by the Company pursuant to the Plan (the \"Management Incentive Plan\"), the reporting person received an award of restricted stock units"},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"The restricted stock units vest in four equal annual installments beginning on November 1, 2020, subject to continuous service of the reporting person as of each such vesting date. The vested restricted stock units will settle on the thirtieth day following the first to occur of (i) a Change in Control (as defined in the Management Incentive Plan) of the Company and (ii) the sixth anniversary of the Effective Date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"The restricted stock units vest in four equal annual installments beginning on November 1, 2020, subject to continuous service of the reporting person as of each such vesting date. The vested restricted stock units will settle on the thirtieth day following the first to occur of (i) a Change in Control (as defined in the Management Incentive Plan) of the Company and (ii) the sixth anniversary of the Effective Date."}],"balance_after":11642,"derivative":{"underlying":"Preferred Stock","underlying_shares":11642},"source":{"system":"sec-edgar","filing":"0001127602-19-032338","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/73887/000112760219032338/form4.xml","form_type":"4"}},{"id":3377217,"issuer":{"id":152407,"kind":"organization","name":"Bristow Group Inc","symbol":"BRSWQ"},"owners":[{"id":61751,"kind":"person","name":"CORBETT ALAN","position":1,"cik":"0001709469","reported_name":"CORBETT ALAN","relationship":{"officer":true,"officer_title":"Senior Vice President, EAMEA"}}],"security":"Restricted Stock Units","published_at":"2019-11-08T16:56:26.000Z","date":"2019-11-06","kind":"grant","acquired":true,"shares":19375,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each restricted stock unit represents a contingent right to receive one share of new common stock of the Company, as reorganized pursuant to and under the Plan, par value $0.0001 per share."},{"field":"kind","element":"transactionCoding","label":"F1","text":"On May 11, 2019, Bristow Group Inc. (the \"Company\") and certain of its subsidiaries (together with the Company, the \"Debtors\") filed voluntary petitions (the \"Chapter 11 Cases\") in the United States Bankruptcy Court for the Southern District of Texas, Houston Division (the \"Bankruptcy Court\") seeking relief under Chapter 11 of Title 11 of the United States Code (the \"Bankruptcy Code\"). On August 20, 2019, the Debtors filed an Amended Joint Plan of Reorganization (as subsequently modified on August 22, 2019 and September 30, 2019, the \"Plan\") with the Bankruptcy Court. On October 8, 2019, the Bankruptcy Court entered into an order confirming the Plan. On October 31, 2019 (the \"Effective Date\"), the Plan became effective in accordance with its terms and the Debtors emerged from bankruptcy under the Chapter 11 Cases. On the Effective Date, all of the Company's previously outstanding shares of common stock, par value $0.01, including options, warrants, rights, restricted stock units or other securities or agreements to acquire such common stock, were canceled pursuant to the Plan."},{"field":"kind","element":"transactionCoding","label":"F4","text":"In accordance with a Management Incentive Plan adopted by the Company pursuant to the Plan (the \"Management Incentive Plan\"), the reporting person received an award of restricted stock units"},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On May 11, 2019, Bristow Group Inc. (the \"Company\") and certain of its subsidiaries (together with the Company, the \"Debtors\") filed voluntary petitions (the \"Chapter 11 Cases\") in the United States Bankruptcy Court for the Southern District of Texas, Houston Division (the \"Bankruptcy Court\") seeking relief under Chapter 11 of Title 11 of the United States Code (the \"Bankruptcy Code\"). On August 20, 2019, the Debtors filed an Amended Joint Plan of Reorganization (as subsequently modified on August 22, 2019 and September 30, 2019, the \"Plan\") with the Bankruptcy Court. On October 8, 2019, the Bankruptcy Court entered into an order confirming the Plan. On October 31, 2019 (the \"Effective Date\"), the Plan became effective in accordance with its terms and the Debtors emerged from bankruptcy under the Chapter 11 Cases. On the Effective Date, all of the Company's previously outstanding shares of common stock, par value $0.01, including options, warrants, rights, restricted stock units or other securities or agreements to acquire such common stock, were canceled pursuant to the Plan."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"In accordance with a Management Incentive Plan adopted by the Company pursuant to the Plan (the \"Management Incentive Plan\"), the reporting person received an award of restricted stock units"},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"The restricted stock units vest in four equal annual installments beginning on November 1, 2020, subject to continuous service of the reporting person as of each such vesting date. The vested restricted stock units will settle on the thirtieth day following the first to occur of (i) a Change in Control (as defined in the Management Incentive Plan) of the Company and (ii) the sixth anniversary of the Effective Date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"The restricted stock units vest in four equal annual installments beginning on November 1, 2020, subject to continuous service of the reporting person as of each such vesting date. The vested restricted stock units will settle on the thirtieth day following the first to occur of (i) a Change in Control (as defined in the Management Incentive Plan) of the Company and (ii) the sixth anniversary of the Effective Date."}],"balance_after":19375,"derivative":{"underlying":"Common Stock","underlying_shares":19375},"source":{"system":"sec-edgar","filing":"0001127602-19-032338","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/73887/000112760219032338/form4.xml","form_type":"4"}},{"id":3383261,"issuer":{"id":152407,"kind":"organization","name":"Bristow Group Inc","symbol":"BRSWQ"},"owners":[{"id":61751,"kind":"person","name":"CORBETT ALAN","position":1,"cik":"0001709469","reported_name":"CORBETT ALAN","relationship":{"officer":true,"officer_title":"Senior Vice President, EAMEA"}}],"security":"Common Stock","published_at":"2019-11-04T17:40:20.000Z","date":"2019-10-31","kind":"other","acquired":false,"shares":607,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On May 11, 2019, Bristow Group Inc. (the \"Company\") and certain of its subsidiaries (together with the Company, the \"Debtors\") filed voluntary petitions (the \"Chapter 11 Cases\") in the United States Bankruptcy Court for the Southern District of Texas, Houston Division (the \"Bankruptcy Court\") seeking relief under Chapter 11 of Title 11 of the United States Code (the \"Bankruptcy Code\"). On August 20, 2019, the Debtors filed an Amended Joint Plan of Reorganization (as subsequently modified on August 22, 2019 and September 30, 2019, the \"Plan\") with the Bankruptcy Court. On October 8, 2019, the Bankruptcy Court entered into an order confirming the Plan. On October 31, 2019 (the \"Effective Date\"), the Plan became effective in accordance with its terms and the Debtors emerged from bankruptcy under the Chapter 11 Cases. On the Effective Date, all of the Company's previously outstanding shares of common stock, par value $0.01, including options, warrants, rights, restricted stock units or other securities or agreements to acquire such common stock, were canceled pursuant to the Plan."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0001127602-19-031707","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/73887/000112760219031707/form4.xml","form_type":"4"}},{"id":3902865,"issuer":{"id":152407,"kind":"organization","name":"Bristow Group Inc","symbol":"BRSWQ"},"owners":[{"id":61751,"kind":"person","name":"CORBETT ALAN","position":1,"cik":"0001709469","reported_name":"CORBETT ALAN","relationship":{"officer":true,"officer_title":"Senior Vice President, EAMEA"}}],"security":"Employee Stock Option (Right to Buy)","published_at":"2018-06-07T20:54:49.000Z","date":"2018-06-05","kind":"grant","acquired":true,"shares":31695,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Options granted on June 5, 2018 vest in three equal annual installments beginning on the first anniversary of the date of grant."}],"balance_after":31695,"derivative":{"exercise_price":12.19,"exercise_date":"2019-06-05","expiration_date":"2028-06-05","underlying":"Common Stock","underlying_shares":31695},"source":{"system":"sec-edgar","filing":"0001127602-18-020394","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/73887/000112760218020394/form4.xml","form_type":"4"}},{"id":3902864,"issuer":{"id":152407,"kind":"organization","name":"Bristow Group Inc","symbol":"BRSWQ"},"owners":[{"id":61751,"kind":"person","name":"CORBETT 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