$VTOL
Bristow Group Inc. Stock $vtol

$vtol Overview Financials Valuation SEC Filings Company Website

2021 Q1 Form 10-K Financial Statement

#000152522121000021 Filed on May 27, 2021

Income Statement

Concept	2021 Q1	2020 Q1	2019 Q4
Revenue	$293.3M	$284.8M	$200.9M
YoY Change	2.97%	-12.03%	286.27%
Cost Of Revenue	$212.2M	$38.50M	$39.50M
YoY Change	451.17%	4.9%	6.76%
Gross Profit	$81.10M	$18.60M	$20.90M
YoY Change	336.02%	27.4%	39.33%
Gross Profit Margin	27.65%	6.53%	10.4%
Selling, General & Admin	$40.50M	$12.70M	$25.36M
YoY Change	218.9%	42.7%	169.77%
% of Gross Profit	49.94%	68.28%	121.33%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$22.13M	$9.507M	$11.93M
YoY Change	132.78%	0.6%	25.14%
% of Gross Profit	27.29%	51.11%	57.06%
Operating Expenses	$57.90M	$22.30M	$25.36M
YoY Change	159.64%	21.86%	34.17%
Operating Profit	$23.20M	-$3.736M	$710.0K
YoY Change	-720.99%	-3.01%	-112.61%
Interest Expense	-$12.30M	$3.439M	$9.674M
YoY Change	-457.66%	-0.64%	-472.08%
% of Operating Profit	-53.02%		1362.54%
Other Income/Expense, Net	$7.900M	-$4.384M	-$139.1M
YoY Change	-280.2%	54.04%
Pretax Income	-$61.50M	-$8.120M	-$140.9M
YoY Change	657.39%	21.23%	1618.82%
Income Tax	-$19.10M	-$831.0K	$11.60M
% Of Pretax Income
Net Earnings	-$42.60M	$291.7M	-$152.5M
YoY Change	-114.6%	-487.25%	2464.09%
Net Earnings / Revenue	-14.52%	102.42%	-75.91%
Basic Earnings Per Share		$24.59	-$14.49
Diluted Earnings Per Share	-$1.474M	-$1.26	-$14.49
COMMON SHARES
Basic Shares Outstanding	29.71M shares	20.70M shares	11.24M shares
Diluted Shares Outstanding		20.70M shares	11.24M shares

Balance Sheet

Concept	2021 Q1	2020 Q1	2019 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$228.0M	$113.5M	$117.4M
YoY Change	100.88%	128.83%	131.1%
Cash & Equivalents	$228.0M	$196.7M	$202.1M
Short-Term Investments
Other Short-Term Assets	$49.90M	$3.400M	$2.200M
YoY Change	1367.65%	54.55%	22.22%
Inventory	$92.18M	$82.42M	$81.16M
Prepaid Expenses		$3.412M	$2.184M
Receivables	$215.6M	$34.10M	$32.70M
Other Receivables	$0.00	$22.90M	$23.50M
Total Short-Term Assets	$585.7M	$524.2M	$195.9M
YoY Change	11.75%	-7.31%	69.03%
LONG-TERM ASSETS
Property, Plant & Equipment	$1.005B	$876.8M	$931.7M
YoY Change	14.58%	-52.2%	55.49%
Goodwill	$0.00	$0.00	$0.00
YoY Change		-100.0%
Intangibles		$92.00K	$96.00K
YoY Change		-91.65%	-91.33%
Long-Term Investments	$4.530M	$77.06M	$0.00
YoY Change	-94.12%	-31.15%	-100.0%
Other Assets	$117.8M	$128.3M	$2.191M
YoY Change	-8.24%	10.38%	-89.85%
Total Long-Term Assets	$1.407B	$1.421B	$568.7M
YoY Change	-1.03%	-31.91%	-12.38%
TOTAL ASSETS
Total Short-Term Assets	$585.7M	$524.2M	$195.9M
Total Long-Term Assets	$1.407B	$1.421B	$568.7M
Total Assets	$1.992B	$1.945B	$764.5M
YoY Change	2.42%	-26.67%	-0.05%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$69.54M	$52.11M	$12.90M
YoY Change	33.45%	-47.67%	-2.27%
Accrued Expenses	$186.0M	$13.80M	$14.40M
YoY Change	1247.83%	8.66%	14.29%
Deferred Revenue	$13.60M	$12.05M
YoY Change	12.82%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$15.97M	$45.74M	$18.32M
YoY Change	-65.1%	-96.78%	790.04%
Total Short-Term Liabilities	$305.1M	$298.0M	$50.78M
YoY Change	2.4%	-82.14%	76.28%
LONG-TERM LIABILITIES
Long-Term Debt	$527.5M	$515.4M	$141.8M
YoY Change	2.36%	6167.6%	-11.48%
Other Long-Term Liabilities	$6.681M	$4.490M	$8.600M
YoY Change	48.8%	-82.88%	1128.57%
Total Long-Term Liabilities	$534.2M	$519.9M	$141.8M
YoY Change	2.76%	1408.98%	-11.48%
TOTAL LIABILITIES
Total Short-Term Liabilities	$305.1M	$298.0M	$50.78M
Total Long-Term Liabilities	$534.2M	$519.9M	$141.8M
Total Liabilities	$1.094B	$1.369B	$305.0M
YoY Change	-20.13%	350.72%	2.29%
SHAREHOLDERS EQUITY
Retained Earnings	$227.0M	$139.2M	$14.69M
YoY Change	63.05%	-69.44%	-19.65%
Common Stock	$303.0K	$1.000K	$224.0K
YoY Change	30200.0%	-99.74%	2.28%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$10.50M	$0.00	$10.18M
YoY Change		-100.0%	311.27%
Treasury Stock Shares	467.0K shares	1.236M shares	1.153M shares
Shareholders Equity	$897.6M	$426.5M	$456.7M
YoY Change
Total Liabilities & Shareholders Equity	$1.992B	$1.945B	$764.5M
YoY Change	2.42%	-26.67%	-0.05%

Cashflow Statement

Concept	2021 Q1	2020 Q1	2019 Q4
OPERATING ACTIVITIES
Net Income	-$42.60M	$291.7M	-$152.5M
YoY Change	-114.6%	-487.25%	2464.09%
Depreciation, Depletion And Amortization	$22.13M	$9.507M	$11.93M
YoY Change	132.78%	0.6%	25.14%
Cash From Operating Activities	$36.78M	-$2.132M	-$15.26M
YoY Change	-1825.14%	-180.91%	-481.58%
INVESTING ACTIVITIES
Capital Expenditures	-$3.610M	$400.0K	-$1.390M
YoY Change	-1002.5%	-69.51%	-9.15%
Acquisitions
YoY Change
Other Investing Activities	$1.380M	$0.00	$4.110M
YoY Change		-100.0%	722.0%
Cash From Investing Activities	-$2.240M	-$345.0K	-$31.94M
YoY Change	549.28%	-91.09%	3000.78%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net		$561.0K	$0.00
YoY Change		11120.0%
Debt Paid & Issued, Net	$484.7M		$5.629M
YoY Change
Cash From Financing Activities	-104.6M	-$977.0K	-$5.629M
YoY Change	10603.17%	-2372.09%	923.45%
NET CHANGE
Cash From Operating Activities	36.78M	-$2.132M	-$15.26M
Cash From Investing Activities	-2.240M	-$345.0K	-$31.94M
Cash From Financing Activities	-104.6M	-$977.0K	-$5.629M
Net Change In Cash	-70.03M	-$3.848M	-$54.44M
YoY Change	1719.91%	237.25%	-2349.71%
FREE CASH FLOW
Cash From Operating Activities	$36.78M	-$2.132M	-$15.26M
Capital Expenditures	-$3.610M	$400.0K	-$1.390M
Free Cash Flow	$40.39M	-$2.532M	-$13.87M
YoY Change	-1695.18%	-291.38%	-350.87%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2021	dei	Entity Central Index Key EntityCentralIndexKey	0001525221
CY2021	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
CY2021	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2021	dei	Amendment Flag AmendmentFlag	false
CY2021Q1	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2021Q1	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2021Q1	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2021Q1	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2021Q1	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2021	dei	Document Type DocumentType	10-K
CY2021	dei	Document Annual Report DocumentAnnualReport	true
CY2021	dei	Document Period End Date DocumentPeriodEndDate	2021-03-31
CY2021	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--03-31
CY2021	dei	Document Transition Report DocumentTransitionReport	false
CY2021	dei	Entity File Number EntityFileNumber	001-35701
CY2021	dei	Entity Registrant Name EntityRegistrantName	Bristow Group Inc.
CY2021	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2021	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	72-1455213
CY2021	dei	Entity Address Address Line1 EntityAddressAddressLine1	3151 Briarpark Drive, Suite 700
CY2021	dei	Entity Address City Or Town EntityAddressCityOrTown	Houston,
CY2021	dei	Entity Address State Or Province EntityAddressStateOrProvince	TX
CY2021	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	77042
CY2021	dei	City Area Code CityAreaCode	713
CY2021	dei	Local Phone Number LocalPhoneNumber	267-7600
CY2021	dei	Security12b Title Security12bTitle	Common Stock, par value $0.01 per share
CY2021	dei	Trading Symbol TradingSymbol	VTOL
CY2021	dei	Security Exchange Name SecurityExchangeName	NYSE
CY2021	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2021	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2021	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2021	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2021	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2021	dei	Entity Filer Category EntityFilerCategory	Accelerated Filer
CY2021	dei	Entity Small Business EntitySmallBusiness	false
CY2021	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2021	dei	Entity Shell Company EntityShellCompany	false
CY2020Q3	dei	Entity Public Float EntityPublicFloat	510176333	USD
CY2021Q2	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	29692703	shares
CY2021	us-gaap	Revenues Revenues	1178062000	USD
	us-gaap	Revenues Revenues	485763000	USD
	us-gaap	Revenues Revenues	757223000	USD
CY2019	us-gaap	Revenues Revenues	1369662000	USD
CY2021	vtol	Prepetition Restructuring Charges PrepetitionRestructuringCharges	0	USD
	vtol	Prepetition Restructuring Charges PrepetitionRestructuringCharges	0	USD
	vtol	Prepetition Restructuring Charges PrepetitionRestructuringCharges	13476000	USD
CY2019	vtol	Prepetition Restructuring Charges PrepetitionRestructuringCharges	0	USD
CY2021	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	153270000	USD
	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	64960000	USD
	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	88392000	USD
CY2019	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	182113000	USD
CY2021	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	42842000	USD
	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	6330000	USD
	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	0	USD
CY2019	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	0	USD
CY2021	us-gaap	Restructuring Charges RestructuringCharges	25773000	USD
	us-gaap	Restructuring Charges RestructuringCharges	227000	USD
	us-gaap	Restructuring Charges RestructuringCharges	4539000	USD
CY2019	us-gaap	Restructuring Charges RestructuringCharges	0	USD
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	70078000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	28238000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	70864000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	124899000	USD
CY2021	us-gaap	Costs And Expenses CostsAndExpenses	1181925000	USD
	us-gaap	Costs And Expenses CostsAndExpenses	488075000	USD
	us-gaap	Costs And Expenses CostsAndExpenses	780134000	USD
CY2019	us-gaap	Costs And Expenses CostsAndExpenses	1446241000	USD
CY2021	us-gaap	Asset Impairment Charges AssetImpairmentCharges	91260000	USD
	us-gaap	Asset Impairment Charges AssetImpairmentCharges	9591000	USD
	us-gaap	Asset Impairment Charges AssetImpairmentCharges	62101000	USD
CY2019	us-gaap	Asset Impairment Charges AssetImpairmentCharges	117220000	USD
CY2021	vtol	Loss On Disposition Of Property Plant And Equipment LossOnDispositionOfPropertyPlantAndEquipment	8199000	USD
	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-451000	USD
	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-3768000	USD
CY2019	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-27843000	USD
CY2021	vtol	Earnings From Unconsolidated Affiliates EarningsFromUnconsolidatedAffiliates	-426000	USD
	vtol	Earnings From Unconsolidated Affiliates EarningsFromUnconsolidatedAffiliates	-7262000	USD
	vtol	Earnings From Unconsolidated Affiliates EarningsFromUnconsolidatedAffiliates	-6589000	USD
CY2019	vtol	Earnings From Unconsolidated Affiliates EarningsFromUnconsolidatedAffiliates	-4317000	USD
CY2021	vtol	Operating Income Loss Including Income Loss From Unconsolidated Affiliates And Gain Loss From Sale Of Property Plant And Equipment OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment	-102896000	USD
	vtol	Operating Income Loss Including Income Loss From Unconsolidated Affiliates And Gain Loss From Sale Of Property Plant And Equipment OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment	-5092000	USD
	vtol	Operating Income Loss Including Income Loss From Unconsolidated Affiliates And Gain Loss From Sale Of Property Plant And Equipment OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment	-82191000	USD
CY2019	vtol	Operating Income Loss Including Income Loss From Unconsolidated Affiliates And Gain Loss From Sale Of Property Plant And Equipment OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment	-217325000	USD
CY2021	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	1293000	USD
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	662000	USD
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	822000	USD
CY2019	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	3424000	USD
CY2021	us-gaap	Interest Expense InterestExpense	51259000	USD
	us-gaap	Interest Expense InterestExpense	22964000	USD
	us-gaap	Interest Expense InterestExpense	128658000	USD
CY2019	us-gaap	Interest Expense InterestExpense	113500000	USD
CY2021	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-29359000	USD
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2021	us-gaap	Reorganization Items ReorganizationItems	-1577000	USD
	us-gaap	Reorganization Items ReorganizationItems	7232000	USD
	us-gaap	Reorganization Items ReorganizationItems	617973000	USD
CY2019	us-gaap	Reorganization Items ReorganizationItems	0	USD
CY2021	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	USD
	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	USD
	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	-55883000	USD
CY2019	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	USD
CY2021	us-gaap	Embedded Derivative Gain Loss On Embedded Derivative Net EmbeddedDerivativeGainLossOnEmbeddedDerivativeNet	15416000	USD
	us-gaap	Embedded Derivative Gain Loss On Embedded Derivative Net EmbeddedDerivativeGainLossOnEmbeddedDerivativeNet	184140000	USD
	us-gaap	Embedded Derivative Gain Loss On Embedded Derivative Net EmbeddedDerivativeGainLossOnEmbeddedDerivativeNet	0	USD
CY2019	us-gaap	Embedded Derivative Gain Loss On Embedded Derivative Net EmbeddedDerivativeGainLossOnEmbeddedDerivativeNet	0	USD
CY2021	us-gaap	Business Combination Bargain Purchase Gain Recognized Amount BusinessCombinationBargainPurchaseGainRecognizedAmount	81093000	USD
	us-gaap	Business Combination Bargain Purchase Gain Recognized Amount BusinessCombinationBargainPurchaseGainRecognizedAmount	0	USD
	us-gaap	Business Combination Bargain Purchase Gain Recognized Amount BusinessCombinationBargainPurchaseGainRecognizedAmount	0	USD
CY2019	us-gaap	Business Combination Bargain Purchase Gain Recognized Amount BusinessCombinationBargainPurchaseGainRecognizedAmount	0	USD
CY2021	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	27495000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-9956000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-3501000	USD
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-8898000	USD
CY2021	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	46256000	USD
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	144650000	USD
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-805193000	USD
CY2019	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-118974000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-56640000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	139558000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-887384000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-336299000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-355000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	482000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-51178000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-161000	USD
CY2021	us-gaap	Profit Loss ProfitLoss	-56285000	USD
	us-gaap	Profit Loss ProfitLoss	139076000	USD
	us-gaap	Profit Loss ProfitLoss	-836206000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	-336138000	USD
CY2021	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-191000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-152000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	208000	USD
CY2019	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	709000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	-56094000	USD
	us-gaap	Net Income Loss NetIncomeLoss	139228000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-836414000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-336847000	USD
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.12
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	20.11
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-23.29
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-9.42
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.32
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.51
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-23.29
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-9.42
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	24601168	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	5641320	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	35918916	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	35740933	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	31675938	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	29805981	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	35918916	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	35740933	shares
CY2021	us-gaap	Profit Loss ProfitLoss	-56285000	USD
	us-gaap	Profit Loss ProfitLoss	139076000	USD
	us-gaap	Profit Loss ProfitLoss	-836206000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	-336138000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	49814000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-16428000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	22952000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-36382000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	45071000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-6389000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	0	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	5291000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-3006000	USD
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CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-42000	USD
CY2021	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-54548000	USD
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CY2019	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-377853000	USD
CY2021	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-191000	USD
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CY2019	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	709000	USD
CY2021	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToNoncontrollingInterest	11000	USD
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CY2021	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-180000	USD
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CY2019	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	889000	USD
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-54368000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	130587000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-814092000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-378742000	USD
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CY2021Q1	us-gaap	Accounts And Other Receivables Net Current AccountsAndOtherReceivablesNetCurrent	215620000	USD
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CY2021Q1	us-gaap	Inventory Net InventoryNet	92180000	USD
CY2020Q1	us-gaap	Inventory Net InventoryNet	82419000	USD
CY2021Q1	us-gaap	Assets Of Disposal Group Including Discontinued Operation Current AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent	14750000	USD
CY2020Q1	us-gaap	Assets Of Disposal Group Including Discontinued Operation Current AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent	32401000	USD
CY2021Q1	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	32119000	USD
CY2020Q1	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	29527000	USD
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CY2021Q1	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	1090094000	USD
CY2020Q1	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	901314000	USD
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CY2021Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1004559000	USD
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CY2021Q1	us-gaap	Assets Assets	1992270000	USD
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CY2020Q1	us-gaap	Common Stock Value CommonStockValue	1000	USD
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CY2021	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	1766000	USD
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	us-gaap	Asset Impairment Charges AssetImpairmentCharges	62101000	USD
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CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	11518000	USD
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CY2021	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	120236000	USD
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	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	0	USD
CY2019	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	965000	USD
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	173274000	USD
	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	0	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-17770000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-58718000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-26124000	USD
CY2021	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	400000000	USD
	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	0	USD
	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	225585000	USD
CY2019	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	470000	USD
CY2021	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	6391000	USD
	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0	USD
	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	14863000	USD
CY2019	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	2599000	USD
CY2021	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	618140000	USD
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	25132000	USD
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	366750000	USD
CY2019	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	61052000	USD
CY2021	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	5778000	USD
	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	0	USD
CY2019	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	0	USD
CY2021	us-gaap	Payments Of Distributions To Affiliates PaymentsOfDistributionsToAffiliates	0	USD
	us-gaap	Payments Of Distributions To Affiliates PaymentsOfDistributionsToAffiliates	0	USD
	us-gaap	Payments Of Distributions To Affiliates PaymentsOfDistributionsToAffiliates	1323000	USD
CY2019	us-gaap	Payments Of Distributions To Affiliates PaymentsOfDistributionsToAffiliates	54000	USD
CY2021	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	0	USD
	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	0	USD
	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	385000000	USD
CY2019	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	2830000	USD
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	10501000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2021	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	0	USD
	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	0	USD
	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	0	USD
CY2019	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	580000	USD
CY2021	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	0	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	0	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	0	USD
CY2019	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	2157000	USD
CY2021	us-gaap	Payments For Repurchase Of Redeemable Preferred Stock PaymentsForRepurchaseOfRedeemablePreferredStock	4807000	USD
	us-gaap	Payments For Repurchase Of Redeemable Preferred Stock PaymentsForRepurchaseOfRedeemablePreferredStock	0	USD
	us-gaap	Payments For Repurchase Of Redeemable Preferred Stock PaymentsForRepurchaseOfRedeemablePreferredStock	0	USD
CY2019	us-gaap	Payments For Repurchase Of Redeemable Preferred Stock PaymentsForRepurchaseOfRedeemablePreferredStock	0	USD
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-245617000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-25132000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	227649000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-63142000	USD
CY2021	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	7456000	USD
	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1010000	USD
	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2406000	USD
CY2019	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-3465000	USD
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	31958000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-51405000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	72471000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-202168000	USD
CY2020Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	199121000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	250526000	USD
CY2019Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	178055000	USD
CY2018Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	380223000	USD
CY2021Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	231079000	USD
CY2020Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	199121000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	250526000	USD
CY2019Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	178055000	USD
CY2018Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1183501000	USD
CY2019	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	8867000	USD
CY2019	vtol	Adjustments To Additional Paid In Capital Warrants And Share Based Payment Arrangement Options Issued AdjustmentsToAdditionalPaidInCapitalWarrantsAndShareBasedPaymentArrangementOptionsIssued	592000	USD
CY2019	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	54000	USD
CY2019	vtol	Noncontrolling Interest Payment Of Dividends NoncontrollingInterestPaymentOfDividends	580000	USD
CY2019	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToNoncontrollingInterest	180000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	-336138000	USD
CY2019	vtol	Other Comprehensive Income Loss Net Of Tax Adjusted OtherComprehensiveIncomeLossNetOfTaxAdjusted	-41895000	USD
CY2019Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	812367000	USD
	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	1871000	USD
	vtol	Adjustments To Additional Paid In Capital Debtor In Possession Beneficial Conversion Feature AdjustmentsToAdditionalPaidInCapitalDebtorInPossessionBeneficialConversionFeature	56870000	USD
	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	5612000	USD
	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	1323000	USD
	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToNoncontrollingInterest	-52000	USD
	us-gaap	Profit Loss ProfitLoss	-836206000	USD
	vtol	Other Comprehensive Income Loss Net Of Tax Adjusted OtherComprehensiveIncomeLossNetOfTaxAdjusted	22322000	USD
	vtol	Cancellation Of Predecessor Equity CancellationOfPredecessorEquity	49868000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	473000	USD
CY2019Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	0	USD
CY2019Q4	us-gaap	Temporary Equity Carrying Amount Attributable To Parent TemporaryEquityCarryingAmountAttributableToParent	618921000	USD
CY2019Q4	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	294671000	USD
CY2019Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	0	USD
CY2019Q4	us-gaap	Temporary Equity Carrying Amount Attributable To Parent TemporaryEquityCarryingAmountAttributableToParent	618921000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	294566000	USD
	us-gaap	Temporary Equity Stock Issued During Period Value New Issues TemporaryEquityStockIssuedDuringPeriodValueNewIssues	1186000	USD
	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	1227000	USD
	vtol	Temporary Equity Initial Reclassification Of Embedded Derivative To Long Term Liability TemporaryEquityInitialReclassificationOfEmbeddedDerivativeToLongTermLiability	470322000	USD
	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToNoncontrollingInterest	12000	USD
	us-gaap	Profit Loss ProfitLoss	139076000	USD
	vtol	Other Comprehensive Income Loss Net Of Tax Adjusted OtherComprehensiveIncomeLossNetOfTaxAdjusted	-8641000	USD
CY2020Q1	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	0	USD
CY2020Q1	us-gaap	Temporary Equity Carrying Amount Attributable To Parent TemporaryEquityCarryingAmountAttributableToParent	149785000	USD
CY2020Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	426216000	USD
CY2021	vtol	Temporary Equity Share Repurchases TemporaryEquityShareRepurchases	2151000	USD
CY2021	vtol	Temporary Equity To Permanent Equity Shares Repurchased TemporaryEquityToPermanentEquitySharesRepurchased	1263000	USD
CY2021	vtol	Temporary Equity Conversion Of Preferred Stock Shares TemporaryEquityConversionOfPreferredStockShares	-146448000	USD
CY2021	us-gaap	Stock Issued During Period Value Conversion Of Convertible Securities StockIssuedDuringPeriodValueConversionOfConvertibleSecurities	413296000	USD
CY2021	us-gaap	Treasury Stock Retired Cost Method Amount TreasuryStockRetiredCostMethodAmount	0	USD
CY2021	vtol	Stock Issued During Period Value Exchange Of Common Stock StockIssuedDuringPeriodValueExchangeOfCommonStock	0	USD
CY2021	vtol	Adjustments To Additional Paid In Capital Business Combination Purchase Price AdjustmentsToAdditionalPaidInCapitalBusinessCombinationPurchasePrice	108340000	USD
CY2021	vtol	Temporary Equity Preferred Stock Compensation Activity And Conversion TemporaryEquityPreferredStockCompensationActivityAndConversion	-1186000	USD
CY2021	vtol	Additional Paid In Capital Conversion Of Preferred Stock Shares And Compensation Activity In Permanent Equity AdditionalPaidInCapitalConversionOfPreferredStockSharesAndCompensationActivityInPermanentEquity	6370000	USD
CY2021	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	6333000	USD
CY2021	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	10501000	USD
CY2021	vtol	Redeemable Noncontrolling Interest Purchase Price Adjustment RedeemableNoncontrollingInterestPurchasePriceAdjustment	1501000	USD
CY2021	vtol	Adjustments To Additional Paid In Capital Business Combination Purchase Price Adjustment AdjustmentsToAdditionalPaidInCapitalBusinessCombinationPurchasePriceAdjustment	395000	USD
CY2021	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToNoncontrollingInterest	11000	USD
CY2021	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	71000	USD
CY2021	vtol	Net Income Loss Including Portion Attributable To Noncontrolling Interest Adjusted NetIncomeLossIncludingPortionAttributableToNoncontrollingInterestAdjusted	-56356000	USD
CY2021	vtol	Other Comprehensive Income Loss Net Of Tax Adjusted OtherComprehensiveIncomeLossNetOfTaxAdjusted	1726000	USD
CY2021Q1	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	1572000	USD
CY2021Q1	us-gaap	Temporary Equity Carrying Amount Attributable To Parent TemporaryEquityCarryingAmountAttributableToParent	0	USD
CY2021Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	897071000	USD
CY2019Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.0001
CY2019Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.0001
CY2021	us-gaap	Use Of Estimates UseOfEstimates	<div style="margin-bottom:6pt;margin-top:9pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:139%">Use of Estimates </span></div><div style="margin-bottom:6pt;margin-top:9pt;text-align:justify;text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:139%">The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting periods. Such estimates may include, among other items, those related to allowance for doubtful accounts, useful lives of property and equipment, inventories, income tax provisions, impairments, fair values used in purchase price allocations and certain accrued and contingent liabilities. Actual results could differ from those estimates and those differences may be material.</span></div>
CY2021	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:139%">Reclassifications</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:139%"> — Certain amounts reported for prior periods in the consolidated financial statements have been reclassified to conform with the current period’s presentation.</span>
CY2021	us-gaap	Financing Receivable Allowance For Credit Losses Policy For Uncollectible Amounts FinancingReceivableAllowanceForCreditLossesPolicyForUncollectibleAmounts	Current Expected Credit Losses (“CECL”) — The Company’s customers are primarily major integrated, national and independent offshore energy companies and government agencies. The Company designates trade receivables as a single pool of assets based on their short-term nature, similar customer base and risk characteristics. Customers are typically granted credit on a short-term basis, and related credit risks are considered minimal. The Company conducts periodic quantitative and qualitative analysis on historic customer payment trends, customer credit ratings and foreseeable economic conditions. Historically, losses on trade receivables have been immaterial and uncorrelated to each other. Based on these analyses, the Company decides if additional reserve amounts are needed against the trade receivables asset pool on a case by case basis. Trade receivables are deemed uncollectible and removed from accounts receivable and the allowance for doubtful accounts when collection efforts have been exhausted.The Company routinely reviews its trade receivables and makes provisions for probable doubtful accounts; however, those provisions are estimates and actual results could differ from those estimates and those differences may be material. Trade receivables are deemed uncollectible and removed from accounts receivable and the allowance for doubtful accounts when collection efforts have been exhausted.
CY2021Q1	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	2300000	USD
CY2020Q1	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	400000	USD
CY2020Q1	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	368000	USD
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	0	USD
CY2019Q1	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1617000	USD
CY2018Q1	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	3304000	USD
CY2021	us-gaap	Allowance For Doubtful Accounts Receivable Period Increase Decrease AllowanceForDoubtfulAccountsReceivablePeriodIncreaseDecrease	1935000	USD
	us-gaap	Allowance For Doubtful Accounts Receivable Period Increase Decrease AllowanceForDoubtfulAccountsReceivablePeriodIncreaseDecrease	368000	USD
	us-gaap	Allowance For Doubtful Accounts Receivable Period Increase Decrease AllowanceForDoubtfulAccountsReceivablePeriodIncreaseDecrease	25000	USD
CY2019	us-gaap	Allowance For Doubtful Accounts Receivable Period Increase Decrease AllowanceForDoubtfulAccountsReceivablePeriodIncreaseDecrease	1073000	USD
CY2021	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	0	USD
	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	0	USD
	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	0	USD
CY2019	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	2760000	USD
CY2021	vtol	Accounts Receivable Allowance For Credit Loss Disposals AccountsReceivableAllowanceForCreditLossDisposals	0	USD
	vtol	Accounts Receivable Allowance For Credit Loss Disposals AccountsReceivableAllowanceForCreditLossDisposals	0	USD
	vtol	Accounts Receivable Allowance For Credit Loss Disposals AccountsReceivableAllowanceForCreditLossDisposals	851000	USD
CY2019	vtol	Accounts Receivable Allowance For Credit Loss Disposals AccountsReceivableAllowanceForCreditLossDisposals	0	USD
CY2021	vtol	Accounts Receivable Allowance For Credit Loss Fresh Start Accounting Adjustment AccountsReceivableAllowanceForCreditLossFreshStartAccountingAdjustment	0	USD
	vtol	Accounts Receivable Allowance For Credit Loss Fresh Start Accounting Adjustment AccountsReceivableAllowanceForCreditLossFreshStartAccountingAdjustment	0	USD
	vtol	Accounts Receivable Allowance For Credit Loss Fresh Start Accounting Adjustment AccountsReceivableAllowanceForCreditLossFreshStartAccountingAdjustment	791000	USD
CY2019	vtol	Accounts Receivable Allowance For Credit Loss Fresh Start Accounting Adjustment AccountsReceivableAllowanceForCreditLossFreshStartAccountingAdjustment	0	USD
CY2021Q1	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	2303000	USD
CY2020Q1	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	368000	USD
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	0	USD
CY2019Q1	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1617000	USD
	vtol	Accounts Receivable Allowance For Credit Loss Disposals AccountsReceivableAllowanceForCreditLossDisposals	900000	USD
CY2021Q1	us-gaap	Goodwill Goodwill	0	USD
CY2019Q1	us-gaap	Goodwill Goodwill	18436000	USD
	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	-932000	USD
	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	17504000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	0	USD
CY2019Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	0	USD
	us-gaap	Finitelived Intangible Assets Acquired1 FinitelivedIntangibleAssetsAcquired1	134838000	USD
	us-gaap	Finite Lived Intangible Assets Foreign Currency Translation Gain Loss FiniteLivedIntangibleAssetsForeignCurrencyTranslationGainLoss	-4811000	USD
CY2020Q1	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	130027000	USD
CY2021	us-gaap	Finitelived Intangible Assets Acquired1 FinitelivedIntangibleAssetsAcquired1	14423000	USD
CY2021	us-gaap	Finite Lived Intangible Assets Foreign Currency Translation Gain Loss FiniteLivedIntangibleAssetsForeignCurrencyTranslationGainLoss	11231000	USD
CY2021Q1	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	155681000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	0	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	18754000	USD
CY2020Q1	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	18754000	USD
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	28141000	USD
CY2021Q1	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	46895000	USD
CY2021	us-gaap	Finite Lived Intangible Asset Useful Life FiniteLivedIntangibleAssetUsefulLife	P7Y10M24D
CY2021Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	21165000	USD
CY2021Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	20759000	USD
CY2021Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	19752000	USD
CY2021Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	19539000	USD
CY2021Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	16599000	USD
CY2021Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	10973000	USD
CY2021Q1	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	108787000	USD
CY2020Q2	vtol	Number Of Directors On Board NumberOfDirectorsOnBoard	8	director
CY2020Q2	vtol	Number Of Board Directors Designated By Bristow NumberOfBoardDirectorsDesignatedByBristow	6	director
CY2020Q2	vtol	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Aircraft BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAircraft	179900000	USD
CY2020Q3	us-gaap	Business Combination Bargain Purchase Gain Recognized Amount BusinessCombinationBargainPurchaseGainRecognizedAmount	5700000	USD
CY2021	vtol	Number Of Aircraft Delivered NumberOfAircraftDelivered	0	aircraft
	vtol	Number Of Aircraft Delivered NumberOfAircraftDelivered	2	aircraft
	vtol	Number Of Aircraft Delivered NumberOfAircraftDelivered	2	aircraft
CY2019	vtol	Number Of Aircraft Delivered NumberOfAircraftDelivered	1	aircraft
CY2021	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	14844000000	USD
	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	36115000	USD
	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	41574000	USD
CY2019	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	40902000	USD
CY2021	us-gaap	Property Plant And Equipment Number Of Aircraft Sold PropertyPlantAndEquipmentNumberOfAircraftSold	54	aircraft
	us-gaap	Property Plant And Equipment Number Of Aircraft Sold PropertyPlantAndEquipmentNumberOfAircraftSold	5	aircraft
	us-gaap	Property Plant And Equipment Number Of Aircraft Sold PropertyPlantAndEquipmentNumberOfAircraftSold	3	aircraft
CY2019	us-gaap	Property Plant And Equipment Number Of Aircraft Sold PropertyPlantAndEquipmentNumberOfAircraftSold	8	aircraft
CY2021	vtol	Proceeds From Deposits For Assets Held For Sale ProceedsFromDepositsForAssetsHeldForSale	0	USD
	vtol	Proceeds From Deposits For Assets Held For Sale ProceedsFromDepositsForAssetsHeldForSale	4500000	USD
	vtol	Proceeds From Deposits For Assets Held For Sale ProceedsFromDepositsForAssetsHeldForSale	0	USD
CY2019	vtol	Proceeds From Deposits For Assets Held For Sale ProceedsFromDepositsForAssetsHeldForSale	0	USD
CY2021	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	67882000	USD
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	13845000	USD
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	5314000	USD
CY2019	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	13813000	USD
CY2021	vtol	Loss On Disposition Of Property Plant And Equipment LossOnDispositionOfPropertyPlantAndEquipment	8199000	USD
	vtol	Loss On Disposition Of Property Plant And Equipment LossOnDispositionOfPropertyPlantAndEquipment	451000	USD
	vtol	Loss On Disposition Of Property Plant And Equipment LossOnDispositionOfPropertyPlantAndEquipment	3768000	USD
CY2019	vtol	Loss On Disposition Of Property Plant And Equipment LossOnDispositionOfPropertyPlantAndEquipment	4995000	USD
CY2021	vtol	Number Of Aircraft Impaired NumberOfAircraftImpaired	8	aircraft
	vtol	Number Of Aircraft Impaired NumberOfAircraftImpaired	0	aircraft
CY2019Q4	vtol	Number Of Aircraft Impaired NumberOfAircraftImpaired	14	aircraft
CY2019	vtol	Number Of Aircraft Impaired NumberOfAircraftImpaired	5	aircraft
CY2021	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	7792000	USD
	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	0	USD
CY2019Q4	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	0	USD
CY2019	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	8149000	USD
CY2021	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	USD
	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	USD
CY2019Q4	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	42022000	USD
CY2019	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	104939000	USD
CY2021	us-gaap	Loss On Contract Termination LossOnContractTermination	0	USD
	us-gaap	Loss On Contract Termination LossOnContractTermination	0	USD
CY2019Q4	us-gaap	Loss On Contract Termination LossOnContractTermination	0	USD
CY2019	us-gaap	Loss On Contract Termination LossOnContractTermination	14699000	USD
CY2021Q1	us-gaap	Fresh Start Adjustment Increase Decrease Property And Equipment Net FreshStartAdjustmentIncreaseDecreasePropertyAndEquipmentNet	0	USD
CY2020Q1	us-gaap	Fresh Start Adjustment Increase Decrease Property And Equipment Net FreshStartAdjustmentIncreaseDecreasePropertyAndEquipmentNet	0	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Property And Equipment Net FreshStartAdjustmentIncreaseDecreasePropertyAndEquipmentNet	768630000	USD
CY2019Q1	us-gaap	Fresh Start Adjustment Increase Decrease Property And Equipment Net FreshStartAdjustmentIncreaseDecreasePropertyAndEquipmentNet	0	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Property And Equipment Net FreshStartAdjustmentIncreaseDecreasePropertyAndEquipmentNet	768600000	USD
CY2019Q4	us-gaap	Postconfirmation Property And Equipment Net PostconfirmationPropertyAndEquipmentNet	931700000	USD
CY2021	vtol	Impairment Of Equipment And Inventory To Be Disposed Of ImpairmentOfEquipmentAndInventoryToBeDisposedOf	12400000	USD
CY2021	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	USD
CY2021	vtol	Contract With Customer Types Of Contracts ContractWithCustomerTypesOfContracts	2	contract
CY2021	vtol	Revenue Performance Obligation Term RevenuePerformanceObligationTerm	P30D
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1139638000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	470167000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	737679000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1323971000	USD
CY2021	us-gaap	Revenue Not From Contract With Customer RevenueNotFromContractWithCustomer	38424000	USD
	us-gaap	Revenue Not From Contract With Customer RevenueNotFromContractWithCustomer	15596000	USD
	us-gaap	Revenue Not From Contract With Customer RevenueNotFromContractWithCustomer	19544000	USD
CY2019	us-gaap	Revenue Not From Contract With Customer RevenueNotFromContractWithCustomer	45691000	USD
CY2021	us-gaap	Revenues Revenues	1178062000	USD
	us-gaap	Revenues Revenues	485763000	USD
	us-gaap	Revenues Revenues	757223000	USD
CY2019	us-gaap	Revenues Revenues	1369662000	USD
CY2021	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	3500000	USD
CY2021Q1	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	13300000	USD
CY2020Q1	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	4900000	USD
	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	4900000	USD
	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	8500000	USD
CY2019	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	12400000	USD
CY2020Q1	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	0	USD
CY2021Q1	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	0	USD
CY2021Q1	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	377086000	USD
CY2021Q1	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	225667000	USD
CY2021Q1	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	185990000	USD
CY2021Q1	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	159086000	USD
CY2021Q1	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	130296000	USD
CY2021Q1	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	1078125000	USD
CY2021	vtol	Number Of Variable Interest Entities NumberOfVariableInterestEntities	6	affiliates
CY2021	vtol	Noncontrolling Interest Number Of Joint Ventures NoncontrollingInterestNumberOfJointVentures	2	jointVenture
CY2021Q1	us-gaap	Long Term Debt LongTermDebt	543493000	USD
CY2020Q1	us-gaap	Long Term Debt LongTermDebt	561124000	USD
CY2021Q1	us-gaap	Long Term Debt Current LongTermDebtCurrent	15965000	USD
CY2020Q1	us-gaap	Long Term Debt Current LongTermDebtCurrent	45739000	USD
CY2021Q1	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	527528000	USD
CY2020Q1	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	515385000	USD
CY2021Q1	us-gaap	Debt Instrument Unamortized Discount Premium Net DebtInstrumentUnamortizedDiscountPremiumNet	21600000	USD
CY2021Q1	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	8500000	USD
CY2021Q1	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	15972000	USD
CY2021Q1	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	16051000	USD
CY2021Q1	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	141512000	USD
CY2021Q1	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	58000	USD
CY2021Q1	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	0	USD
CY2021Q1	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	400000000	USD
CY2021Q1	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	573593000	USD
CY2021	us-gaap	Interest Paid Net InterestPaidNet	32300000	USD
CY2021Q1	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	484700000	USD
CY2021	us-gaap	Embedded Derivative Gain Loss On Embedded Derivative Net EmbeddedDerivativeGainLossOnEmbeddedDerivativeNet	15400000	USD
CY2020Q1	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	286182000	USD
CY2021	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	15416000	USD
CY2021	vtol	Fair Value Measurement With Unobservable Inputs Reconciliation Liability Recurring Basis Preferred Stock Shares Conversion FairValueMeasurementWithUnobservableInputsReconciliationLiabilityRecurringBasisPreferredStockSharesConversion	266846000	USD
CY2021	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements	3920000	USD
CY2021Q1	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	0	USD
CY2021	vtol	Embedded Derivative Settlement Premium Internal Rate Of Return EmbeddedDerivativeSettlementPremiumInternalRateOfReturn	0.17
CY2021	vtol	Embedded Derivative Liability Multiple Of Invested Capital EmbeddedDerivativeLiabilityMultipleOfInvestedCapital	2.1
CY2021	vtol	Embedded Derivative Liability Multiple Of Invested Capital EmbeddedDerivativeLiabilityMultipleOfInvestedCapital	2.1
CY2020Q2	vtol	Paidin Kind Dividends Perpetual Preferred PaidinKindDividendsPerpetualPreferred	0.10
CY2020Q2	us-gaap	Embedded Derivative Gain Loss On Embedded Derivative Net EmbeddedDerivativeGainLossOnEmbeddedDerivativeNet	15400000	USD
CY2020Q2	vtol	Stockholders Equity Make Whole Redemption Percentage StockholdersEquityMakeWholeRedemptionPercentage	1.02
CY2020Q2	vtol	Stockholders Equity Call Right Conversion Of Preferred Stock Ratio StockholdersEquityCallRightConversionOfPreferredStockRatio	5.17962	shares
CY2021Q1	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	21649000	USD
CY2020Q1	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	50660000	USD
CY2021Q1	vtol	Purchase Commitment Additional Number Of Helicopters PurchaseCommitmentAdditionalNumberOfHelicopters	10	helicopter
CY2021Q1	vtol	Lessee Operating Lease Number Of Units LesseeOperatingLeaseNumberOfUnits	44	aircraft
CY2021Q1	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	90084000	USD
CY2021Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	68421000	USD
CY2021Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	55310000	USD
CY2021Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	35997000	USD
CY2021Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	8814000	USD
CY2021Q1	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	21055000	USD
CY2021Q1	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	279681000	USD
CY2020Q1	vtol	Lessee Operating Lease Number Of Units LesseeOperatingLeaseNumberOfUnits	46	aircraft
CY2020Q1	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	97416000	USD
CY2020Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	83664000	USD
CY2020Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	65051000	USD
CY2020Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	52091000	USD
CY2020Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	33375000	USD
CY2020Q1	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	18552000	USD
CY2020Q1	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	350149000	USD
CY2021Q1	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	246667000	USD
CY2020Q1	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	305962000	USD
CY2021Q1	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	77909000	USD
CY2020Q1	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	81484000	USD
CY2021Q1	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	167718000	USD
CY2020Q1	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	224595000	USD
CY2021Q1	us-gaap	Operating Lease Liability OperatingLeaseLiability	245627000	USD
CY2020Q1	us-gaap	Operating Lease Liability OperatingLeaseLiability	306079000	USD
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	112590000	USD
	us-gaap	Operating Lease Payments OperatingLeasePayments	48967000	USD
	us-gaap	Operating Lease Payments OperatingLeasePayments	95601000	USD
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	21923000	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	338257000	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	256242000	USD
CY2021Q1	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P4Y
CY2020Q1	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P4Y
CY2019Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P5Y
CY2021Q1	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0623
CY2020Q1	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0627
CY2019Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0714
CY2021Q1	us-gaap	Lessee Operating Lease Term Of Contract LesseeOperatingLeaseTermOfContract	P180M
CY2021Q1	us-gaap	Lessee Operating Lease Renewal Term LesseeOperatingLeaseRenewalTerm	P60M
CY2021Q1	vtol	Lessee Operating Lease Number Of Units LesseeOperatingLeaseNumberOfUnits	44	aircraft
CY2021Q1	us-gaap	Due From Related Parties Current DueFromRelatedPartiesCurrent	2600000	USD
CY2020Q1	us-gaap	Due From Related Parties Current DueFromRelatedPartiesCurrent	14600000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	2869000	USD
CY2021	vtol	Sales Type Lease Number Of Helicopters SalesTypeLeaseNumberOfHelicopters	5	aircraft
CY2021Q1	us-gaap	Sales Type Lease Net Investment In Lease SalesTypeLeaseNetInvestmentInLease	3700000	USD
CY2021	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-6400000	USD
CY2021Q1	us-gaap	Sales Type And Direct Financing Leases Lease Receivable Payments To Be Received SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived	3700000	USD
CY2019Q2	us-gaap	Debtor Reorganization Items Net Gain Loss On Rejection Of Leases And Other Executory Contracts1 DebtorReorganizationItemsNetGainLossOnRejectionOfLeasesAndOtherExecutoryContracts1	4300000	USD
CY2019Q2	vtol	Liabilities Subjectto Compromise Number Of Aircraft Lease Rejections LiabilitiesSubjecttoCompromiseNumberOfAircraftLeaseRejections	10	aircraft
CY2019Q2	vtol	Liabilities Subjectto Compromise Number Of Aircraft Lease Rejections LiabilitiesSubjecttoCompromiseNumberOfAircraftLeaseRejections	10	aircraft
CY2019Q4	vtol	Debtor Reorganization Items Reduction Of Right Of Use Assets DebtorReorganizationItemsReductionOfRightOfUseAssets	2600000	USD
CY2021Q1	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Foreign DeferredTaxAssetsTaxCreditCarryforwardsForeign	33576000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Foreign DeferredTaxAssetsTaxCreditCarryforwardsForeign	39554000	USD
CY2021Q1	us-gaap	Deferred Tax Assets Operating Loss Carryforwards State And Local DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal	41929000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Operating Loss Carryforwards State And Local DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal	9140000	USD
CY2021Q1	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Domestic DeferredTaxAssetsOperatingLossCarryforwardsDomestic	122376000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Domestic DeferredTaxAssetsOperatingLossCarryforwardsDomestic	68919000	USD
CY2021Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	8408000	USD
CY2021Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	2913000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	440000	USD
CY2021Q1	us-gaap	Deferred Tax Asset Interest Carryforward DeferredTaxAssetInterestCarryforward	37546000	USD
CY2020Q1	us-gaap	Deferred Tax Asset Interest Carryforward DeferredTaxAssetInterestCarryforward	33567000	USD
CY2021Q1	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	375000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	375000	USD
CY2021Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Bonuses DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBonuses	586000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Bonuses DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBonuses	86000	USD
CY2021Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	2470000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	1656000	USD
CY2021Q1	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	0	USD
CY2020Q1	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	6853000	USD
CY2021Q1	vtol	Deferred Tax Asset Capitalized Costs DeferredTaxAssetCapitalizedCosts	6025000	USD
CY2020Q1	vtol	Deferred Tax Asset Capitalized Costs DeferredTaxAssetCapitalizedCosts	5561000	USD
CY2021Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	10354000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	9000000	USD
CY2021Q1	vtol	Deferred Tax Assets Leasing Arrangements DeferredTaxAssetsLeasingArrangements	67312000	USD
CY2020Q1	vtol	Deferred Tax Assets Leasing Arrangements DeferredTaxAssetsLeasingArrangements	22369000	USD
CY2021Q1	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	6599000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	3431000	USD
CY2021Q1	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	164565000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	85259000	USD
CY2021Q1	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	87252000	USD
CY2020Q1	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	38299000	USD
CY2021Q1	us-gaap	Deferred Tax Liabilities Deferred Expense Capitalized Inventory Costs DeferredTaxLiabilitiesDeferredExpenseCapitalizedInventoryCosts	4160000	USD
CY2020Q1	us-gaap	Deferred Tax Liabilities Deferred Expense Capitalized Inventory Costs DeferredTaxLiabilitiesDeferredExpenseCapitalizedInventoryCosts	987000	USD
CY2021Q1	us-gaap	Deferred Tax Liabilities Investment In Noncontrolled Affiliates DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates	21071000	USD
CY2020Q1	us-gaap	Deferred Tax Liabilities Investment In Noncontrolled Affiliates DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates	23112000	USD
CY2021Q1	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	67439000	USD
CY2020Q1	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	21552000	USD
CY2021Q1	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	20363000	USD
CY2020Q1	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	18539000	USD
CY2021Q1	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	6710000	USD
CY2020Q1	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	5545000	USD
CY2021Q1	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	206995000	USD
CY2020Q1	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	108034000	USD
CY2021Q1	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	42430000	USD
CY2020Q1	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	22775000	USD
CY2021Q1	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Foreign DeferredTaxAssetsTaxCreditCarryforwardsForeign	33600000	USD
CY2021Q1	vtol	Disallowed Interest Expense Carryforward DisallowedInterestExpenseCarryforward	178800000	USD
CY2020Q1	vtol	Disallowed Interest Expense Carryforward DisallowedInterestExpenseCarryforward	146700000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	118561000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	124700000	USD
CY2019Q1	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	128214000	USD
CY2018Q1	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	71987000	USD
CY2021	vtol	Deferred Tax Assets Valuation Allowance Merger Adjustment DeferredTaxAssetsValuationAllowanceMergerAdjustment	52553000	USD
	vtol	Deferred Tax Assets Valuation Allowance Merger Adjustment DeferredTaxAssetsValuationAllowanceMergerAdjustment	0	USD
	vtol	Deferred Tax Assets Valuation Allowance Merger Adjustment DeferredTaxAssetsValuationAllowanceMergerAdjustment	0	USD
CY2019	vtol	Deferred Tax Assets Valuation Allowance Merger Adjustment DeferredTaxAssetsValuationAllowanceMergerAdjustment	0	USD
CY2021	vtol	Deferred Tax Assets Valuation Allowance Additions DeferredTaxAssetsValuationAllowanceAdditions	14360000	USD
	vtol	Deferred Tax Assets Valuation Allowance Additions DeferredTaxAssetsValuationAllowanceAdditions	19434000	USD
	vtol	Deferred Tax Assets Valuation Allowance Additions DeferredTaxAssetsValuationAllowanceAdditions	5381000	USD
CY2019	vtol	Deferred Tax Assets Valuation Allowance Additions DeferredTaxAssetsValuationAllowanceAdditions	59493000	USD
CY2021	vtol	Deferred Tax Assets Valuation Allowance Reversals And Other Deductions DeferredTaxAssetsValuationAllowanceReversalsAndOtherDeductions	9571000	USD
	vtol	Deferred Tax Assets Valuation Allowance Reversals And Other Deductions DeferredTaxAssetsValuationAllowanceReversalsAndOtherDeductions	25573000	USD
	vtol	Deferred Tax Assets Valuation Allowance Reversals And Other Deductions DeferredTaxAssetsValuationAllowanceReversalsAndOtherDeductions	8895000	USD
CY2019	vtol	Deferred Tax Assets Valuation Allowance Reversals And Other Deductions DeferredTaxAssetsValuationAllowanceReversalsAndOtherDeductions	3266000	USD
CY2021Q1	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	175903000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	118561000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	124700000	USD
CY2019Q1	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	128214000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-14314000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	163866000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-568781000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-263377000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-42326000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-24308000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-318603000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-72922000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-56640000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	139558000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-887384000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-336299000	USD
CY2021	us-gaap	Current Federal State And Local Tax Expense Benefit CurrentFederalStateAndLocalTaxExpenseBenefit	719000	USD
	us-gaap	Current Federal State And Local Tax Expense Benefit CurrentFederalStateAndLocalTaxExpenseBenefit	-1542000	USD
	us-gaap	Current Federal State And Local Tax Expense Benefit CurrentFederalStateAndLocalTaxExpenseBenefit	2516000	USD
CY2019	us-gaap	Current Federal State And Local Tax Expense Benefit CurrentFederalStateAndLocalTaxExpenseBenefit	1337000	USD
CY2021	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	14387000	USD
	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	6572000	USD
	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	9178000	USD
CY2019	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	15313000	USD
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	15106000	USD
	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	5030000	USD
	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	11694000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	16650000	USD
CY2021	us-gaap	Deferred Federal State And Local Tax Expense Benefit DeferredFederalStateAndLocalTaxExpenseBenefit	-11894000	USD
	us-gaap	Deferred Federal State And Local Tax Expense Benefit DeferredFederalStateAndLocalTaxExpenseBenefit	-5072000	USD
	us-gaap	Deferred Federal State And Local Tax Expense Benefit DeferredFederalStateAndLocalTaxExpenseBenefit	-49634000	USD
CY2019	us-gaap	Deferred Federal State And Local Tax Expense Benefit DeferredFederalStateAndLocalTaxExpenseBenefit	-16523000	USD
CY2021	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-3567000	USD
	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	524000	USD
	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-13238000	USD
CY2019	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-288000	USD
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-15461000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-4548000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-62872000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-16811000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-355000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	482000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-51178000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-161000	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0
	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0
	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	-0.035
CY2021	vtol	Effective Income Tax Rate Reconciliation Foreign Tax On Foreign Earnings Percent EffectiveIncomeTaxRateReconciliationForeignTaxOnForeignEarningsPercent	-0.252
	vtol	Effective Income Tax Rate Reconciliation Foreign Tax On Foreign Earnings Percent EffectiveIncomeTaxRateReconciliationForeignTaxOnForeignEarningsPercent	-0.042
	vtol	Effective Income Tax Rate Reconciliation Foreign Tax On Foreign Earnings Percent EffectiveIncomeTaxRateReconciliationForeignTaxOnForeignEarningsPercent	-0.007
CY2019	vtol	Effective Income Tax Rate Reconciliation Foreign Tax On Foreign Earnings Percent EffectiveIncomeTaxRateReconciliationForeignTaxOnForeignEarningsPercent	-0.003
CY2021	vtol	Effective Income Tax Rate Reconciliation Benefit Of Foreign Tax Deduction Percent EffectiveIncomeTaxRateReconciliationBenefitOfForeignTaxDeductionPercent	0.023
	vtol	Effective Income Tax Rate Reconciliation Benefit Of Foreign Tax Deduction Percent EffectiveIncomeTaxRateReconciliationBenefitOfForeignTaxDeductionPercent	-0.002
	vtol	Effective Income Tax Rate Reconciliation Benefit Of Foreign Tax Deduction Percent EffectiveIncomeTaxRateReconciliationBenefitOfForeignTaxDeductionPercent	0
CY2019	vtol	Effective Income Tax Rate Reconciliation Benefit Of Foreign Tax Deduction Percent EffectiveIncomeTaxRateReconciliationBenefitOfForeignTaxDeductionPercent	0
CY2021	vtol	Effective Income Tax Rate Reconciliation Foreign Earnings Indefinitely Reinvested Abroad Percent EffectiveIncomeTaxRateReconciliationForeignEarningsIndefinitelyReinvestedAbroadPercent	0.058
	vtol	Effective Income Tax Rate Reconciliation Foreign Earnings Indefinitely Reinvested Abroad Percent EffectiveIncomeTaxRateReconciliationForeignEarningsIndefinitelyReinvestedAbroadPercent	0.022
	vtol	Effective Income Tax Rate Reconciliation Foreign Earnings Indefinitely Reinvested Abroad Percent EffectiveIncomeTaxRateReconciliationForeignEarningsIndefinitelyReinvestedAbroadPercent	-0.059
CY2019	vtol	Effective Income Tax Rate Reconciliation Foreign Earnings Indefinitely Reinvested Abroad Percent EffectiveIncomeTaxRateReconciliationForeignEarningsIndefinitelyReinvestedAbroadPercent	-0.044
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0
	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.004
	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.006
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.152
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.056
	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.008
	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.007
CY2021	vtol	Effective Income Tax Rate Reconciliation Bargain Purchase Gain Percent EffectiveIncomeTaxRateReconciliationBargainPurchaseGainPercent	0.301
	vtol	Effective Income Tax Rate Reconciliation Bargain Purchase Gain Percent EffectiveIncomeTaxRateReconciliationBargainPurchaseGainPercent	0
	vtol	Effective Income Tax Rate Reconciliation Bargain Purchase Gain Percent EffectiveIncomeTaxRateReconciliationBargainPurchaseGainPercent	0
CY2019	vtol	Effective Income Tax Rate Reconciliation Bargain Purchase Gain Percent EffectiveIncomeTaxRateReconciliationBargainPurchaseGainPercent	0
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Disposition Of Business EffectiveIncomeTaxRateReconciliationDispositionOfBusiness	0
	us-gaap	Effective Income Tax Rate Reconciliation Disposition Of Business EffectiveIncomeTaxRateReconciliationDispositionOfBusiness	0
	us-gaap	Effective Income Tax Rate Reconciliation Disposition Of Business EffectiveIncomeTaxRateReconciliationDispositionOfBusiness	-0.011
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Disposition Of Business EffectiveIncomeTaxRateReconciliationDispositionOfBusiness	0
CY2021	vtol	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate Foreign Percent EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRateForeignPercent	0.017
	vtol	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate Foreign Percent EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRateForeignPercent	0
	vtol	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate Foreign Percent EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRateForeignPercent	0
CY2019	vtol	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate Foreign Percent EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRateForeignPercent	0.004
CY2021	vtol	Effective Income Tax Rate Reconciliation Preferred Stock Embedded Derivative Percent EffectiveIncomeTaxRateReconciliationPreferredStockEmbeddedDerivativePercent	0.057
	vtol	Effective Income Tax Rate Reconciliation Preferred Stock Embedded Derivative Percent EffectiveIncomeTaxRateReconciliationPreferredStockEmbeddedDerivativePercent	-0.277
	vtol	Effective Income Tax Rate Reconciliation Preferred Stock Embedded Derivative Percent EffectiveIncomeTaxRateReconciliationPreferredStockEmbeddedDerivativePercent	0
CY2019	vtol	Effective Income Tax Rate Reconciliation Preferred Stock Embedded Derivative Percent EffectiveIncomeTaxRateReconciliationPreferredStockEmbeddedDerivativePercent	0
CY2021	vtol	Effective Income Tax Rate Reconciliation Contingent Beneficial Conversion Feature Percent EffectiveIncomeTaxRateReconciliationContingentBeneficialConversionFeaturePercent	0
	vtol	Effective Income Tax Rate Reconciliation Contingent Beneficial Conversion Feature Percent EffectiveIncomeTaxRateReconciliationContingentBeneficialConversionFeaturePercent	0
	vtol	Effective Income Tax Rate Reconciliation Contingent Beneficial Conversion Feature Percent EffectiveIncomeTaxRateReconciliationContingentBeneficialConversionFeaturePercent	-0.010
CY2019	vtol	Effective Income Tax Rate Reconciliation Contingent Beneficial Conversion Feature Percent EffectiveIncomeTaxRateReconciliationContingentBeneficialConversionFeaturePercent	0
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Impairment Losses EffectiveIncomeTaxRateReconciliationNondeductibleExpenseImpairmentLosses	-0.262
	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Impairment Losses EffectiveIncomeTaxRateReconciliationNondeductibleExpenseImpairmentLosses	0.014
	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Impairment Losses EffectiveIncomeTaxRateReconciliationNondeductibleExpenseImpairmentLosses	-0.006
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Impairment Losses EffectiveIncomeTaxRateReconciliationNondeductibleExpenseImpairmentLosses	0
CY2021	vtol	Effective Income Tax Rate Reconciliation Fresh Start Accounting And Debtor Reorganization Percent EffectiveIncomeTaxRateReconciliationFreshStartAccountingAndDebtorReorganizationPercent	0
	vtol	Effective Income Tax Rate Reconciliation Fresh Start Accounting And Debtor Reorganization Percent EffectiveIncomeTaxRateReconciliationFreshStartAccountingAndDebtorReorganizationPercent	0.067
	vtol	Effective Income Tax Rate Reconciliation Fresh Start Accounting And Debtor Reorganization Percent EffectiveIncomeTaxRateReconciliationFreshStartAccountingAndDebtorReorganizationPercent	-0.036
CY2019	vtol	Effective Income Tax Rate Reconciliation Fresh Start Accounting And Debtor Reorganization Percent EffectiveIncomeTaxRateReconciliationFreshStartAccountingAndDebtorReorganizationPercent	0
CY2021	vtol	Effective Income Tax Rate Reconciliation Nondeductible Expense Professional Fees Percent EffectiveIncomeTaxRateReconciliationNondeductibleExpenseProfessionalFeesPercent	0.029
	vtol	Effective Income Tax Rate Reconciliation Nondeductible Expense Professional Fees Percent EffectiveIncomeTaxRateReconciliationNondeductibleExpenseProfessionalFeesPercent	-0.013
	vtol	Effective Income Tax Rate Reconciliation Nondeductible Expense Professional Fees Percent EffectiveIncomeTaxRateReconciliationNondeductibleExpenseProfessionalFeesPercent	0.013
CY2019	vtol	Effective Income Tax Rate Reconciliation Nondeductible Expense Professional Fees Percent EffectiveIncomeTaxRateReconciliationNondeductibleExpenseProfessionalFeesPercent	0
CY2021	vtol	Effective Income Tax Rate Reconciliation Change In Tax Reserves Percent EffectiveIncomeTaxRateReconciliationChangeInTaxReservesPercent	0
	vtol	Effective Income Tax Rate Reconciliation Change In Tax Reserves Percent EffectiveIncomeTaxRateReconciliationChangeInTaxReservesPercent	0.001
	vtol	Effective Income Tax Rate Reconciliation Change In Tax Reserves Percent EffectiveIncomeTaxRateReconciliationChangeInTaxReservesPercent	0
CY2019	vtol	Effective Income Tax Rate Reconciliation Change In Tax Reserves Percent EffectiveIncomeTaxRateReconciliationChangeInTaxReservesPercent	0.007
CY2021	vtol	Effective Income Tax Rate Reconciliation Impact Of Us Withholding Tax EffectiveIncomeTaxRateReconciliationImpactOfUSWithholdingTax	0.013
	vtol	Effective Income Tax Rate Reconciliation Impact Of Us Withholding Tax EffectiveIncomeTaxRateReconciliationImpactOfUSWithholdingTax	0.003
	vtol	Effective Income Tax Rate Reconciliation Impact Of Us Withholding Tax EffectiveIncomeTaxRateReconciliationImpactOfUSWithholdingTax	0.001
CY2019	vtol	Effective Income Tax Rate Reconciliation Impact Of Us Withholding Tax EffectiveIncomeTaxRateReconciliationImpactOfUSWithholdingTax	0.004
CY2021	vtol	Effective Income Tax Rate Reconciliation Nondeductible Expense Severance Charges Percent EffectiveIncomeTaxRateReconciliationNondeductibleExpenseSeveranceChargesPercent	0.010
	vtol	Effective Income Tax Rate Reconciliation Nondeductible Expense Severance Charges Percent EffectiveIncomeTaxRateReconciliationNondeductibleExpenseSeveranceChargesPercent	0
	vtol	Effective Income Tax Rate Reconciliation Nondeductible Expense Severance Charges Percent EffectiveIncomeTaxRateReconciliationNondeductibleExpenseSeveranceChargesPercent	0
CY2019	vtol	Effective Income Tax Rate Reconciliation Nondeductible Expense Severance Charges Percent EffectiveIncomeTaxRateReconciliationNondeductibleExpenseSeveranceChargesPercent	0
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.038
	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.004
	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.003
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.024
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.006
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.003
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.058
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.006
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-400000	USD
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.003
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.058
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0
CY2021	vtol	Provision Benefit For Income Tax Contingencies ProvisionBenefitForIncomeTaxContingencies	200000	USD
	vtol	Provision Benefit For Income Tax Contingencies ProvisionBenefitForIncomeTaxContingencies	-200000	USD
	vtol	Provision Benefit For Income Tax Contingencies ProvisionBenefitForIncomeTaxContingencies	-2300000	USD
CY2019	vtol	Provision Benefit For Income Tax Contingencies ProvisionBenefitForIncomeTaxContingencies	0	USD
CY2021Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	4300000	USD
CY2020Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	4300000	USD
CY2020Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	4252000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	4060000	USD
CY2019Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	4337000	USD
CY2018Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	6682000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	30000	USD
	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	213000	USD
	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	170000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	100000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	0	USD
	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	21000	USD
	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	442000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	2445000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	24000	USD
	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	0	USD
	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	5000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	0	USD
	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	13600000	USD
CY2019	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	22200000	USD
CY2021Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	4258000	USD
CY2020Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	4252000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	4060000	USD
CY2019Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	4337000	USD
CY2021Q1	us-gaap	Undistributed Earnings Of Foreign Subsidiaries UndistributedEarningsOfForeignSubsidiaries	102400000	USD
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	15100000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	7600000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	9500000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	19400000	USD
CY2013Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2021	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	11500000	USD
CY2021	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent Of Match DefinedContributionPlanEmployerMatchingContributionPercentOfMatch	0.03
CY2021	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent DefinedContributionPlanEmployerMatchingContributionPercent	0.03
CY2021	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	21900000	USD
	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	8500000	USD
CY2021	vtol	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Average Salaries Term DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationAverageSalariesTerm	P3Y
CY2021	vtol	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Average Salaries Annual Increase DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationAverageSalariesAnnualIncrease	0.05
CY2021	vtol	Number Of Closed Defined Benefit Plans NumberOfClosedDefinedBenefitPlans	2	plan
	vtol	Defined Benefit Plan Employer Contribution Percent Of Salary DefinedBenefitPlanEmployerContributionPercentOfSalary	0.07
	vtol	Defined Benefit Plan Employer Contribution Percent Of Salary DefinedBenefitPlanEmployerContributionPercentOfSalary	0.0735
CY2021	vtol	Defined Benefit Plan Employee Minimum Required Contribution For Match DefinedBenefitPlanEmployeeMinimumRequiredContributionForMatch	0.05
CY2021	vtol	Number Of Defined Benefit Plans Designated For Nonoriginal Members NumberOfDefinedBenefitPlansDesignatedForNonoriginalMembers	3	plan
CY2021	vtol	Number Of Closed Defined Benefit Plans Designated For Nonoriginal Members NumberOfClosedDefinedBenefitPlansDesignatedForNonoriginalMembers	2	plan
CY2020Q1	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	494992000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	528858000	USD
CY2019Q1	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	504076000	USD
CY2021	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	743000	USD
	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	594000	USD
	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	29000	USD
CY2021	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	9449000	USD
	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	4109000	USD
	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	6705000	USD
CY2021	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	-41343000	USD
	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	5545000	USD
	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	-34618000	USD
CY2021	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	24854000	USD
	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	11394000	USD
	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	13882000	USD
CY2021	us-gaap	Defined Benefit Plan Foreign Currency Exchange Rate Changes Benefit Obligation DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation	-57245000	USD
	us-gaap	Defined Benefit Plan Foreign Currency Exchange Rate Changes Benefit Obligation DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation	21630000	USD
	us-gaap	Defined Benefit Plan Foreign Currency Exchange Rate Changes Benefit Obligation DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation	2688000	USD
CY2021Q1	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	578918000	USD
CY2020Q1	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	494992000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	528858000	USD
CY2020Q1	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	477137000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	495343000	USD
CY2019Q1	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	478350000	USD
CY2021	us-gaap	Defined Benefit Plan Actual Return On Plan Assets DefinedBenefitPlanActualReturnOnPlanAssets	11738000	USD
	us-gaap	Defined Benefit Plan Actual Return On Plan Assets DefinedBenefitPlanActualReturnOnPlanAssets	6827000	USD
	us-gaap	Defined Benefit Plan Actual Return On Plan Assets DefinedBenefitPlanActualReturnOnPlanAssets	24633000	USD
CY2021	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	16778000	USD
	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	7144000	USD
	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	9032000	USD
CY2021	us-gaap	Defined Benefit Plan Plan Assets Benefits Paid DefinedBenefitPlanPlanAssetsBenefitsPaid	24854000	USD
	us-gaap	Defined Benefit Plan Plan Assets Benefits Paid DefinedBenefitPlanPlanAssetsBenefitsPaid	11394000	USD
	us-gaap	Defined Benefit Plan Plan Assets Benefits Paid DefinedBenefitPlanPlanAssetsBenefitsPaid	13882000	USD
CY2021	us-gaap	Defined Benefit Plan Plan Assets Foreign Currency Translation Gain Loss DefinedBenefitPlanPlanAssetsForeignCurrencyTranslationGainLoss	53969000	USD
	us-gaap	Defined Benefit Plan Plan Assets Foreign Currency Translation Gain Loss DefinedBenefitPlanPlanAssetsForeignCurrencyTranslationGainLoss	-20783000	USD
	us-gaap	Defined Benefit Plan Plan Assets Foreign Currency Translation Gain Loss DefinedBenefitPlanPlanAssetsForeignCurrencyTranslationGainLoss	-2790000	USD
CY2021Q1	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	534768000	USD
CY2020Q1	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	477137000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	495343000	USD
CY2021Q1	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	578918000	USD
CY2020Q1	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	494992000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	528858000	USD
CY2021Q1	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	578918000	USD
CY2020Q1	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	494992000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	528858000	USD
CY2021Q1	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	534768000	USD
CY2020Q1	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	477137000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	495343000	USD
CY2021Q1	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	-44150000	USD
CY2020Q1	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	-17855000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	-33515000	USD
CY2021Q1	vtol	Accumulated Other Comprehensive Income Loss Adjusted Defined Benefit Plan After Tax AccumulatedOtherComprehensiveIncomeLossAdjustedDefinedBenefitPlanAfterTax	45071000	USD
CY2020Q1	vtol	Accumulated Other Comprehensive Income Loss Adjusted Defined Benefit Plan After Tax AccumulatedOtherComprehensiveIncomeLossAdjustedDefinedBenefitPlanAfterTax	-6389000	USD
CY2019Q4	vtol	Accumulated Other Comprehensive Income Loss Adjusted Defined Benefit Plan After Tax AccumulatedOtherComprehensiveIncomeLossAdjustedDefinedBenefitPlanAfterTax	0	USD
CY2021	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	743000	USD
	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	594000	USD
	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	29000	USD
CY2019	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	655000	USD
CY2021	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	9449000	USD
	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	4109000	USD
	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	6705000	USD
CY2019	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	12984000	USD
CY2021	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	13090000	USD
	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	5735000	USD
	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	5610000	USD
CY2019	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	17118000	USD
CY2021	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	0	USD
	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	0	USD
	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	0	USD
CY2019	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-8001000	USD
CY2021	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	-2898000	USD
	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	-1032000	USD
	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	1124000	USD
CY2019	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	4522000	USD
CY2021Q1	us-gaap	Defined Benefit Plan Expected Amortization Of Gain Loss Next Fiscal Year DefinedBenefitPlanExpectedAmortizationOfGainLossNextFiscalYear	0	USD
CY2018Q4	us-gaap	Defined Benefit Pension Plan Current And Noncurrent Liabilities DefinedBenefitPensionPlanCurrentAndNoncurrentLiabilities	2900000	USD
CY2021	vtol	Liability Defined Benefit Pension Plan Period Of Recognition LiabilityDefinedBenefitPensionPlanPeriodOfRecognition	P20Y
CY2021	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	0.0230
	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	0.0190
	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	0.0190
CY2019	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	0.0260
CY2021	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.0262
	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.0280
	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.0280
CY2019	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.0362
CY2021	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease	0.0260
	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease	0.0280
	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease	0.0280
CY2019	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease	0.0290
CY2021Q1	us-gaap	Defined Benefit Plan Plan Assets Target Allocation Percentage DefinedBenefitPlanPlanAssetsTargetAllocationPercentage	1.000
CY2020Q1	us-gaap	Defined Benefit Plan Plan Assets Target Allocation Percentage DefinedBenefitPlanPlanAssetsTargetAllocationPercentage	1.000
CY2021Q1	us-gaap	Defined Benefit Plan Weighted Average Asset Allocations DefinedBenefitPlanWeightedAverageAssetAllocations	1.000
CY2020Q1	us-gaap	Defined Benefit Plan Weighted Average Asset Allocations DefinedBenefitPlanWeightedAverageAssetAllocations	1.000
CY2021Q1	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	534768000	USD
CY2020Q1	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	477137000	USD
CY2021Q1	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Next Twelve Months DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths	23869000	USD
CY2021Q1	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Two DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo	24696000	USD
CY2021Q1	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Three DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree	25110000	USD
CY2021Q1	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Four DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour	25662000	USD
CY2021Q1	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Five DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive	26076000	USD
CY2021Q1	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Five Fiscal Years Thereafter DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter	132726000	USD
CY2021Q1	us-gaap	Defined Benefit Plan Expected Future Employer Contributions Next Fiscal Year DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear	18000000.0	USD
CY2021Q1	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	29694071	shares
CY2019Q4	vtol	Temporary Equity Carrying Amount Including Portion Attributableto Noncontrolling Interests Gross TemporaryEquityCarryingAmountIncludingPortionAttributabletoNoncontrollingInterestsGross	618900000	USD
CY2019Q4	us-gaap	Embedded Derivative Fair Value Of Embedded Derivative Liability EmbeddedDerivativeFairValueOfEmbeddedDerivativeLiability	470300000	USD
CY2019Q4	us-gaap	Temporary Equity Carrying Amount Including Portion Attributable To Noncontrolling Interests TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests	148600000	USD
CY2019Q4	us-gaap	Temporary Equity Carrying Amount Including Portion Attributable To Noncontrolling Interests TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests	148600000	USD
CY2020Q2	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	11092845	shares
CY2020Q2	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	11092845	shares
CY2020Q2	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	6725798	shares
CY2020Q2	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	6725798	shares
CY2020Q2	vtol	Temporary Equity Conversion Of Preferred Stock Ratio TemporaryEquityConversionOfPreferredStockRatio	5.179562	shares
CY2020Q2	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	30882471	shares
CY2020Q3	us-gaap	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	75000000.0	USD
CY2021	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	448252	shares
CY2021	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	10000000.0	USD
CY2021	vtol	Stock Repurchased During Period Price Per Share StockRepurchasedDuringPeriodPricePerShare	22.29
CY2021Q1	us-gaap	Stock Repurchase Program Remaining Authorized Repurchase Amount1 StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1	65000000.0	USD
CY2021Q1	us-gaap	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	75000000.0	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	-56094000	USD
	us-gaap	Net Income Loss NetIncomeLoss	139228000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-836414000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-336847000	USD
CY2021	us-gaap	Dividends Paidinkind DividendsPaidinkind	12039000	USD
	us-gaap	Dividends Paidinkind DividendsPaidinkind	25788000	USD
	us-gaap	Dividends Paidinkind DividendsPaidinkind	0	USD
CY2019	us-gaap	Dividends Paidinkind DividendsPaidinkind	0	USD
CY2021	vtol	Conversion Of Preferred Stock Deemed Contribution ConversionOfPreferredStockDeemedContribution	144986000	USD
	vtol	Conversion Of Preferred Stock Deemed Contribution ConversionOfPreferredStockDeemedContribution	0	USD
	vtol	Conversion Of Preferred Stock Deemed Contribution ConversionOfPreferredStockDeemedContribution	0	USD
CY2019	vtol	Conversion Of Preferred Stock Deemed Contribution ConversionOfPreferredStockDeemedContribution	0	USD
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	76853000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	113440000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-836414000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-336847000	USD
CY2021	vtol	Dividends Paid In Kind Adjustment DividendsPaidInKindAdjustment	-12039000	USD
	vtol	Dividends Paid In Kind Adjustment DividendsPaidInKindAdjustment	-25788000	USD
	vtol	Dividends Paid In Kind Adjustment DividendsPaidInKindAdjustment	0	USD
CY2019	vtol	Dividends Paid In Kind Adjustment DividendsPaidInKindAdjustment	0	USD
CY2021	vtol	Changes In Fair Value Of Preferred Stock Derivative Liability ChangesInFairValueOfPreferredStockDerivativeLiability	15416000	USD
	vtol	Changes In Fair Value Of Preferred Stock Derivative Liability ChangesInFairValueOfPreferredStockDerivativeLiability	184140000	USD
	vtol	Changes In Fair Value Of Preferred Stock Derivative Liability ChangesInFairValueOfPreferredStockDerivativeLiability	0	USD
CY2019	vtol	Changes In Fair Value Of Preferred Stock Derivative Liability ChangesInFairValueOfPreferredStockDerivativeLiability	0	USD
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	73476000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-44912000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-836414000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-336847000	USD
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	24601168	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	5641320	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	35918916	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	35740933	shares
CY2021	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	179900	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
CY2019	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
CY2021	us-gaap	Incremental Common Shares Attributable To Conversion Of Preferred Stock IncrementalCommonSharesAttributableToConversionOfPreferredStock	6894870	shares
	us-gaap	Incremental Common Shares Attributable To Conversion Of Preferred Stock IncrementalCommonSharesAttributableToConversionOfPreferredStock	24164661	shares
	us-gaap	Incremental Common Shares Attributable To Conversion Of Preferred Stock IncrementalCommonSharesAttributableToConversionOfPreferredStock	0	shares
CY2019	us-gaap	Incremental Common Shares Attributable To Conversion Of Preferred Stock IncrementalCommonSharesAttributableToConversionOfPreferredStock	0	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	31675938	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	29805981	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	35918916	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	35740933	shares
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.12
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	20.11
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-23.29
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-9.42
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.32
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.51
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-23.29
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-9.42
CY2021	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	135882	shares
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	3175849	shares
CY2019	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	2490483	shares
	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	21176000	USD
	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-1146000	USD
	vtol	Other Comprehensive Income Loss Net Of Tax Adjusted OtherComprehensiveIncomeLossNetOfTaxAdjusted	22322000	USD
	vtol	Other Comprehensive Income Loss Net Of Tax Adjusted OtherComprehensiveIncomeLossNetOfTaxAdjusted	-8641000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	45126000	USD
CY2021	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	43400000	USD
CY2021	vtol	Other Comprehensive Income Loss Net Of Tax Adjusted OtherComprehensiveIncomeLossNetOfTaxAdjusted	1726000	USD
CY2021	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	1	segment
CY2021	vtol	Number Of Regions NumberOfRegions	4	region
CY2021	us-gaap	Revenues Revenues	1178062000	USD
	us-gaap	Revenues Revenues	485763000	USD
	us-gaap	Revenues Revenues	757223000	USD
CY2019	us-gaap	Revenues Revenues	1369662000	USD
CY2021	us-gaap	Revenue Not From Contract With Customer RevenueNotFromContractWithCustomer	38424000	USD
	us-gaap	Revenue Not From Contract With Customer RevenueNotFromContractWithCustomer	15596000	USD
	us-gaap	Revenue Not From Contract With Customer RevenueNotFromContractWithCustomer	19544000	USD
CY2019	us-gaap	Revenue Not From Contract With Customer RevenueNotFromContractWithCustomer	45691000	USD
CY2021	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	383000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	4294000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	6589000	USD
CY2019	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	1799000	USD
CY2021	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-8199000	USD
	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-451000	USD
	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-3768000	USD
CY2019	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-27843000	USD
CY2021	vtol	Operating Income Loss Including Income Loss From Unconsolidated Affiliates And Gain Loss From Sale Of Property Plant And Equipment OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment	-102896000	USD
	vtol	Operating Income Loss Including Income Loss From Unconsolidated Affiliates And Gain Loss From Sale Of Property Plant And Equipment OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment	-5092000	USD
	vtol	Operating Income Loss Including Income Loss From Unconsolidated Affiliates And Gain Loss From Sale Of Property Plant And Equipment OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment	-82191000	USD
CY2019	vtol	Operating Income Loss Including Income Loss From Unconsolidated Affiliates And Gain Loss From Sale Of Property Plant And Equipment OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment	-217325000	USD
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	70078000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	28238000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	70864000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	124899000	USD
CY2021Q1	us-gaap	Assets Assets	1992270000	USD
CY2020Q1	us-gaap	Assets Assets	1945261000	USD
CY2021Q1	us-gaap	Equity Method Investments EquityMethodInvestments	4530000	USD
CY2020Q1	us-gaap	Equity Method Investments EquityMethodInvestments	77058000	USD
CY2021Q1	us-gaap	Construction In Progress Gross ConstructionInProgressGross	5400000	USD
CY2020Q1	us-gaap	Construction In Progress Gross ConstructionInProgressGross	7800000	USD

Files In Submission

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$VTOL
Bristow Group Inc. Stock $vtol

2021 Q1 Form 10-K Financial Statement

#000152522121000021 Filed on May 27, 2021

Income Statement

Balance Sheet

Cashflow Statement

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$VTOL Bristow Group Inc. Stock $vtol

2021 Q1 Form 10-K Financial Statement

#000152522121000021 Filed on May 27, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$VTOL
Bristow Group Inc. Stock $vtol