Summary of Long Term Debt (Detail) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Long-term debt	$ 858,755	$ 858,755
Less deferred financing costs and discounts	5,806	6,432
Total	852,949	852,323
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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No definition available.

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

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Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt classified as noncurrent. Excludes lease obligation.

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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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