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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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