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Operating Leases (Narrative) (Details) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2025 USD ($) Engine Aircraft | Mar. 31, 2024 USD ($) | Dec. 31, 2024 USD ($)
Lessee Lease Description [Line Items] |  |  |
Operating lease right-of-use assets, net | $ 786,314 |  | $ 809,174
Lease liabilities, net | $ 844,309 |  | $ 867,426
Number of aircraft engines | Aircraft | 17 |  |
Net book value of lease assets | $ 110,300 |  |
Lease income | $ 3,900 | $ 1,900 |
Minimum [Member] | Office Space and Office Equipment [Member] |  |  |
Lessee Lease Description [Line Items] |  |  |
Operating leases remaining lease term | 1 year |  |
Maximum [Member] | Office Space and Office Equipment [Member] |  |  |
Lessee Lease Description [Line Items] |  |  |
Operating leases remaining lease term | 15 years |  |
Other Income [Member] | One Aircraft Engine [Member] |  |  |
Lessee Lease Description [Line Items] |  |  |
Number of engines sold | Engine | 1 |  |
Net book value | $ 11,000 |  |
Gain loss on sale of aircraft engines | $ 3,600 |  |

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- Definition Amount, after accumulated depreciation, of long-lived, depreciable flight asset owned and right-of-use asset from finance lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 360 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482099/360-10-50-1 + Details
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- Definition Amount of lease income from operating, direct financing, and sales-type leases. Includes, but is not limited to, variable lease payments, interest income, profit (loss) recognized at commencement, and lease payments paid and payable to lessor. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479773/842-30-50-5 + Details
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- Definition Amount, before allowance for credit loss, of net investment in sales-type and direct financing leases. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 7A -Publisher FASB -URI https://asc.fasb.org/1943274/2147481962/310-10-50-7A Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479344/326-20-45-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 14 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-14 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479016/842-30-45-1 + Details
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