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Long-Term Debt and Financing Arrangements - Schedule of Outstanding Debt (Detail) - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
Debt Instrument [Line Items]    
Interim funding for equipment received and expected to be converted to an equipment note in subsequent year; interest paid at a variable rate $ 4,124 $ 6,137
Secured long-term debt 334,059 342,465
Less current portion (97,899) (101,741)
Total long-term debt 236,160 240,724
Secured Equipment Notes due in 2028 [Member]    
Debt Instrument [Line Items]    
Secured long-term debt 17,627  
Secured Equipment Notes due in 2027 [Member]    
Debt Instrument [Line Items]    
Secured long-term debt 173,504 177,295
Secured Equipment Notes due in 2026 [Member]    
Debt Instrument [Line Items]    
Secured long-term debt 73,257 78,359
Secured Equipment Notes due in 2025 [Member]    
Debt Instrument [Line Items]    
Secured long-term debt 40,079 43,955
Secured Equipment Notes due in 2024 [Member]    
Debt Instrument [Line Items]    
Secured long-term debt 17,202 20,751
Secured Equipment Notes due in 2023 [Member]    
Debt Instrument [Line Items]    
Secured long-term debt $ 8,266 $ 15,968