Valuation And Qualifying Accounts (Detail) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Allowance for Credit Losses
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at the beginning of the period		$ 2,564	$ 2,775	$ 2,760
Additions	[1]	797	383	669
Deduction		(292)	(594)	(654)
Balance at the end of the period		3,069	2,564	2,775
Valuation Allowance of Deferred Tax Assets
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at the beginning of the period		511,412	999	1,259
Additions	[1]	193	510,488	0
Deduction		(510,178)	(75)	(260)
Balance at the end of the period		$ 1,427	$ 511,412	$ 999

[1] Reductions in/charges to revenues and expenses.