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Leases - Net Investment in Finance Leases (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
Lessee, Lease, Description [Line Items]
Future minimum lease payment receivable	$ 1,974,693	$ 2,161,192
Estimated residual receivable	218,251	218,004
Gross finance lease receivables	2,192,944	2,379,196
Lessor, Unearned Income	(659,385)	(739,365)
Net investment in finance leases	$ 1,533,559	$ 1,639,831
Customer Concentration Risk | Lease Finance Portfolio Benchmark | Customer One
Lessee, Lease, Description [Line Items]
Concentration Risk, Percentage	93.00%	90.00%

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- Definition

Lessor, Estimated Residual Receivable

+ References

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- Definition

Lessor, Future Minimum Lease Payment Receivable

+ References

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- Definition

Amount of remaining payments as of the balance sheet date that lessees are obligated to make or can be required to make under direct financing and sales-type leases, net of allowance for uncollectible minimum lease payments.

+ References

No definition available.

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- Definition

Lessor, Net Investment In Finance Lease

+ References

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- Definition

Lessor, Unearned Income

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 42
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-42

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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