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Long-term Debt - Principal Amount of Debt by Year of Maturity (Detail) - USD ($) $ in Thousands	Dec. 31, 2024	Apr. 30, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
2025	$ 0
2026	0
2027	415,000
2028	0
2029	1,623,880
Thereafter	965,000
Long-term debt, gross	3,003,880	$ 1,223,900
Interest rate on debt instrument		6.75%
Bank Credit Facility [Member]
Debt Instrument [Line Items]
2025	0
2026	0
2027	415,000
2028	0
2029	0
Thereafter	0
Long-term debt, gross	415,000
6.75% Senior Notes due 2029:
Debt Instrument [Line Items]
2025	0
2026	0
2027	0
2028	0
2029	1,623,880
Thereafter	0
Long-term debt, gross	$ 1,623,880		$ 1,223,880
Interest rate on debt instrument	6.75%	6.75%	6.75%
5.875% Senior Notes due 2030:
Debt Instrument [Line Items]
2025	$ 0
2026	0
2027	0
2028	0
2029	0
Thereafter	965,000
Long-term debt, gross	$ 965,000		$ 965,000
Interest rate on debt instrument	5.875%		5.875%