Impact of the COVID-19 Pandemic - Additional Information (Detail)			3 Months Ended
	Sep. 30, 2020 USD ($) Employee	Sep. 04, 2020 Employee	Mar. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Mar. 31, 2020 USD ($)
Unusual Or Infrequent Item [Line Items]
Impairment charge for goodwill			$ 0		$ 262,000,000
Percentage of fair value in excess of carrying value					12.00%
Impairment of long-lived assets			$ 0
Goodwill Impairment Charge [Member]
Unusual Or Infrequent Item [Line Items]
Prior period correction amounts				$ 17,000,000.0
Income Tax Benefit [Member]
Unusual Or Infrequent Item [Line Items]
Prior period correction amounts				$ 1,000,000.0
2020 Restructuring Plan [Member]
Unusual Or Infrequent Item [Line Items]
Restructuring program, positions eliminated percentage	22.00%
Restructuring program, number of positions eliminated | Employee	525
Restructuring program, cash expenditure	$ 33,600,000
Restructuring program, completion month and year	2020-10
2020 Restructuring Plan [Member] | Retirement Incentive Program [Member]
Unusual Or Infrequent Item [Line Items]
Minimum eligible age of employees to offer voluntary retirement program		55 years
Minimum years of employee service to offer voluntary retirement program		5 years
Number of employees eligible to participate in voluntary retirement program | Employee		165
Percentage of employee base, eligible to participate in voluntary retirement program		5.00%