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Related Party Transactions (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025 USD ($) airframe engine	Sep. 30, 2024 USD ($) engine	Sep. 30, 2025 USD ($) engine	Sep. 30, 2025 USD ($) engine	Sep. 30, 2025 USD ($) airframe engine	Sep. 30, 2024 USD ($) engine	Dec. 31, 2024 USD ($) engine
Related Party Transaction [Line Items]
Gain on sale of business	$ 0	$ 0	$ 42,950			$ 0
Payment for fleet management services	$ 500		500
Mikchalk Lake L L C
Related Party Transaction [Line Items]
Costs and expenses, related party			100			$ 100
WAML
Related Party Transaction [Line Items]
Total purchase price			45,000
Gain on sale of business			43,000
WMES
Related Party Transaction [Line Items]
Number of assets sold | engine		0				3
Proceeds from sale of assets						$ 44,700
Gain on sale of asset						12,000
Number of assets purchased | airframe	0
Purchases from related party			$ 7,200
Lessee, operating lease, number of engines subleased | engine	2		2	2	2		1
ROU assets	$ 800		$ 800	$ 800	$ 800		$ 1,600
Total lease liabilities	$ 700		700	$ 700	$ 700		$ 1,600
WMES | Transaction One
Related Party Transaction [Line Items]
Number of assets sold	0			3	1
Proceeds from sale of assets			32,200
Gain on sale of asset			1,600
WMES | Transaction Two
Related Party Transaction [Line Items]
Number of assets sold | engine				1
Proceeds from sale of assets			21,100
Gain on sale of asset			1,400
WMES | Asset Management | Other Income
Related Party Transaction [Line Items]
Other sales and revenue	$ 1,000	$ 1,200	4,000			$ 4,000
CASC Willis
Related Party Transaction [Line Items]
Number of assets sold | engine	1	0		2		0
Proceeds from sale of assets	$ 7,500		13,600
Gain on sale of asset	$ 1,500		$ 1,500

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