Revenue and Related Matters - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Contract assets	$ 0	$ 0	$ 0	$ 0
Deferred revenue recognized	53,000,000	58,400,000	125,900,000	139,300,000
Revenue expected to be recognized	362,200,000		362,200,000
Amortization expense related to deferred commissions	$ 10,400,000	$ 11,800,000	19,000,000	21,800,000
Impairment of deferred commissions			$ 0	$ 0
Maximum [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Contract with customer, expected payment term			one year