Summary of Long Term Debt (Detail) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Long-term debt	$ 883,755	$ 858,755
Less deferred financing costs and discounts	(6,016)	(6,432)
Total	877,739	852,323
Revolving Credit Facility
Debt Instrument [Line Items]
Long-term debt	25,000	0
3.95% Senior Notes
Debt Instrument [Line Items]
Long-term debt	509,505	509,505
5.15% Senior Notes
Debt Instrument [Line Items]
Long-term debt	$ 349,250	$ 349,250

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Amount of unamortized debt discount (premium) and debt issuance costs.

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Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Carrying value as of the balance sheet date of all notes and loans payable (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion.

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