Long-Term Debt - Schedule of Revolving Credit Facility and Long-Term Debt (Detail) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Finance Leases	$ 4,028	$ 953
Unamortized debt issuance costs	(5,939)	(8,365)
Long-term debt	486,970	581,721
Less current portion of long-term debt	10,979	5,847
Long-term debt due after one year, net	$ 475,991	$ 575,874
Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration]	Long-term debt	Long-term debt
6.25% Senior Secured Notes Due 2028 [Member]
Debt Instrument [Line Items]
Debt carrying amount	$ 478,440	$ 575,000
8.75% Secured Financing Due 2025 [Member]
Debt Instrument [Line Items]
Debt carrying amount	$ 10,441	$ 14,133