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Long-Term Debt and Financing Arrangements - Schedule of Outstanding Debt (Detail) - USD ($)
$ in Thousands
Mar. 31, 2024
Dec. 31, 2023
Debt Instrument [Line Items]    
Interim funding for equipment received and expected to be converted to an equipment note in a subsequent period; interest paid at a variable rate $ 707 $ 3,265
Secured long-term debt 334,810 350,682
Less current portion (104,035) (105,108)
Total long-term debt 230,775 245,574
Secured Equipment Notes due in 2029 [Member]    
Debt Instrument [Line Items]    
Secured long-term debt 14,106 0
Secured Equipment Notes due in 2028 [Member]    
Debt Instrument [Line Items]    
Secured long-term debt 100,180 105,744
Secured Equipment Notes due in 2027 [Member]    
Debt Instrument [Line Items]    
Secured long-term debt 137,746 147,192
Secured Equipment Notes due in 2026 [Member]    
Debt Instrument [Line Items]    
Secured long-term debt 52,804 55,797
Secured Equipment Notes due in 2025 [Member]    
Debt Instrument [Line Items]    
Secured long-term debt 24,827 30,930
Secured Equipment Notes due in 2024 [Member]    
Debt Instrument [Line Items]    
Secured long-term debt $ 4,440 $ 7,754