Face (par) amount of debt instrument at time of issuance.

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Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Debt - Additional information (Detail) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021	Jul. 31, 2003
Operating lease right of use asset	$ 14,789	$ 18,679
Hangar [Member]
Operating lease right of use asset	$ 2,605
City of Milwaukee, Wisconsin variable rate Industrial Development Bonds [Member]
Aggregate principal amount			$ 4,275