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v3.23.3

Long-term Debt (Details) - USD ($) $ in Thousands | 9 Months Ended |
--- | --- | ---
Sep. 30, 2023 | Dec. 31, 2022
Debt Instrument [Line Items] |  |
Current portion of long-term debt | $ 446,924 | $ 442,360
Current portion of unamortized debt issue cost, net | (3,738) | (3,858)
Current portion of long-term debt, net of debt issue costs | 443,186 | 438,502
Long-term debt, net of current maturities | 2,655,391 | 2,966,951
Long-term portion of unamortized debt issue cost, net | (21,684) | (25,179)
Long-term debt, net of current maturities and debt issue costs | 2,633,707 | 2,941,772
Total long-term debt (including current portion) | 3,102,315 | 3,409,311
Total unamortized debt issue cost, net | (25,422) | (29,037)
Total long-term debt, net of debt issue costs | $ 3,076,893 | 3,380,274
Effective interest rate (as a percent) | 4.10% |
Letters of credit and surety bonds |  |
Debt Instrument [Line Items] |  |
Letters of credit and surety bonds outstanding with various banks and surety institutions | $ 50,800 | $ 59,200
Letters of credit |  |
Debt Instrument [Line Items] |  |
Amount outstanding | 29,900 |
Current borrowing capacity | $ 70,100 |
Basis spread on variable rate | 3.50% |
Promissory note |  |
Debt Instrument [Line Items] |  |
Debt instrument, term | 8 years |
Interest rate (as a percent) | 5.60% |
Principal amount | $ 25,000 |
Unsecured debt payable to U.S. Treasury |  |
Debt Instrument [Line Items] |  |
Total long-term debt, net of debt issue costs | 200,600 |
Line of credit |  |
Debt Instrument [Line Items] |  |
Amount outstanding | 0 |
Maximum borrowing capacity | 100,000 |
Primarily related to acquisition of aircraft and certain spare engines |  |
Debt Instrument [Line Items] |  |
Total long-term debt (including current portion) | 3,100,000 |
Total long-term debt, net of debt issue costs | $ 2,900,000 |

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