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Summary of Significant Accounting Policies - Leasing Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Property, Plant and Equipment [Line Items]
Leasing equipment		$ 8,639,136	$ 8,768,917
Property available for operating lease, net		348,900	727,600
Forecast
Property, Plant and Equipment [Line Items]
Interest expense, equipment lease, increase (decrease)	$ 80,000
Dry container
Property, Plant and Equipment [Line Items]
Leasing equipment		7,007,107	6,926,220
Refrigerated container
Property, Plant and Equipment [Line Items]
Leasing equipment		1,011,372	1,182,683
Special container
Property, Plant and Equipment [Line Items]
Leasing equipment		298,603	316,062
Tank container
Property, Plant and Equipment [Line Items]
Leasing equipment		118,572	122,241
Chassis
Property, Plant and Equipment [Line Items]
Leasing equipment		$ 203,482	$ 221,711

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- Definition

Interest Expense, Equipment Lease, Increase (Decrease)

+ References

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- Definition

The amount of property available for lease, net of accumulated depreciation, as of the balance sheet date.

+ References

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- Definition

Amount, after accumulated amortization, of right-of-use asset from finance lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479041/842-20-45-1

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 7A
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-7A

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