Liquidity - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Liquidity Uncertainty And Going Concern [Line Items]
Gain (Loss) on Extinguishment of Debt	$ 53	$ 10,363
Small Business Administration Payroll Protection Program [Member] | Paycheck Protection Program Notes [Member]
Liquidity Uncertainty And Going Concern [Line Items]
Gain (Loss) on Extinguishment of Debt		10,135
Small Business Administration Payroll Protection Program [Member] | Air Wisconsin [Member]
Liquidity Uncertainty And Going Concern [Line Items]
Amount received from Small Business Administration under PPP			$ 10,000
Treasury Department Payroll Support Program [Member]
Liquidity Uncertainty And Going Concern [Line Items]
Payroll Support Agreement Awardable Amount			$ 42,185
PSP2 Agreement [member] | Air Wisconsin [Member] | Minimum [member]
Liquidity Uncertainty And Going Concern [Line Items]
Proceeds from cares act payroll support program grant		32,987
PSP3 Agreement [member] | Air Wisconsin [Member]
Liquidity Uncertainty And Going Concern [Line Items]
Proceeds from american rescue plan grant		33,329
HRBR Payroll Support Program Agreement [Member] | Air Wisconsin [Member]
Liquidity Uncertainty And Going Concern [Line Items]
Payroll Support Program Contra Expense		$ 66,316