Indebtedness - Debt Outstanding (Detail) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Senior notes	$ 1,788,388	$ 1,850,000
Unamortized debt issuance costs	(15,733)	(27,040)
Total debt net of debt issuance costs	1,772,655	1,841,960
Notes Payable to Banks
Debt Instrument [Line Items]
Bank debt	0	19,000
4.875% Senior Notes Due 2025 | Notes Payable to Banks
Debt Instrument [Line Items]
Senior notes	688,388	750,000
8.25% Senior Notes Due 2029 | Notes Payable to Banks
Debt Instrument [Line Items]
Senior notes	600,000	600,000
4.75% Senior Notes Due 2030 | Notes Payable to Banks
Debt Instrument [Line Items]
Senior notes	$ 500,000	$ 500,000