Schedule II - Valuation and Qualifying Accounts (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Sep. 30, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease)	$ 11,218
SEC Schedule, 12-09, Allowance, Credit Loss [Member]
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning Balance		$ 7,100	$ 9,100	$ 5,600
Charge to Expenses		16,400	700	5,500
Charged (credited) to other accounts		(300)	500	(100)
Deductions		(2,900)	(4,800)	(1,900)
Balance at end of period		20,300	7,100	9,100
SEC Schedule, 12-09, Allowance, Credit Loss [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning Balance			10,700
Balance at end of period				10,700
SEC Schedule, 12-09, Allowance, Credit Loss [Member] | Cumulative Effect, Period of Adoption, Adjustment
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning Balance		1,600
Balance at end of period			1,600
Tax Valuation Allowance [Member]
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning Balance		234,400	194,800	171,200
Additions Charged to Income		124,200	51,600	24,600
Additions Charged to Equity		(23,600)	7,300	(1,000)
Deductions		0	(19,300)	0
Balance at end of period		$ 335,000	$ 234,400	$ 194,800