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Investments - Additional Information (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($) aircraft engine equipment	Sep. 30, 2021 USD ($) engine	Dec. 31, 2021 USD ($)
Schedule of Equity Method Investments [Line Items]
Other sales and revenue		$ 2,440
Equipment held for operating lease
Schedule of Equity Method Investments [Line Items]
Net book value of equipment held for operating lease	$ 2,078,775		$ 2,078,775		$ 1,991,368
WMES
Schedule of Equity Method Investments [Line Items]
Ownership interest	50.00%		50.00%
Number of engines in lease portfolio | engine			36
Number of aircraft in lease portfolio | aircraft			5
Number of assets sold | engine				2
Proceeds from sale of assets				$ 25,000
WMES | Other Income | Asset Management
Schedule of Equity Method Investments [Line Items]
Other sales and revenue	$ 400	$ 900	$ 1,400	$ 1,600
WMES | Aircraft
Schedule of Equity Method Investments [Line Items]
Net book value of equipment held for operating lease	$ 253,400		$ 253,400
CASC Willis
Schedule of Equity Method Investments [Line Items]
Ownership interest	50.00%		50.00%
Number of engines in lease portfolio | engine			4
CASC Willis | Equipment held for operating lease
Schedule of Equity Method Investments [Line Items]
Net book value of equipment held for operating lease	$ 43,100		$ 43,100
WMES and CASC Willis
Schedule of Equity Method Investments [Line Items]
Number of assets sold | equipment			0

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