Long Term Debt - Schedule of Long-term Debt (Detail) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Long-term debt	$ 640,000	$ 651,352
Deferred financing costs	(8,232)	(9,218)
Long-term debt, net	631,768	642,134
2016 Credit Agreement due 2027, Maturing in October 2027 [Member]
Debt Instrument [Line Items]
Long-term debt	65,000	76,352
2021 Senior Notes due 2029, Maturing in October 2029 [Member]
Debt Instrument [Line Items]
Long-term debt	$ 575,000	$ 575,000