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v3.21.1

Leases (Details) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2021 USD ($) Aircraft | Dec. 31, 2020 USD ($)
Leases [Abstract] |  |
Operating Leased Assets, Number of Units | Aircraft | 13 |
Finance Leased Assets, Number of Units | Aircraft | 9 |
Number Of Aircraft In Sale-Leaseback Transactions | Aircraft | 3 |
operating right of use asset, net | $ 116,998 | $ 115,911
Finance Lease, Right-of-Use Asset, after Accumulated Amortization | 242,280 | 133,175
Total Right-of-Use Asset | 359,278 | 249,086
Current operating lease liabilities | 15,247 | 14,313
Finance Lease, Liability, Current | 13,358 | 9,767
Noncurrent operating lease liabilities | 103,103 | 102,289
Finance Lease, Liability, Noncurrent | 215,354 | 117,060
Total Lease Liability | 347,062 | $ 243,429
Sale Leaseback Transaction, Net Proceeds, Financing Activities | $ 105,000 |

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- Definition Present value of lessee's discounted obligation for lease payments from finance lease, classified as current. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977 + Details
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