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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 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 + Details
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