Revenue Recognition - Additional Information (Details) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Disaggregation Of Revenue [Line Items]
Deferred sales commissions current	$ 13,700,000		$ 13,700,000		$ 14,500,000
Deferred sales commissions noncurrent	17,600,000		17,600,000		15,900,000
Amortization expense for the deferred costs	3,500,000		7,200,000	$ 5,700,000	2,800,000
Impairment loss related to costs capitalized			0		$ 0
Subscription Services, License and other
Disaggregation Of Revenue [Line Items]
Revenue recognized	67,000,000.0	$ 51,200,000	106,100,000	83,000,000.0
Professional Services
Disaggregation Of Revenue [Line Items]
Revenue recognized	3,600,000	$ 3,900,000	7,500,000	$ 5,400,000
Revenue remaining performance obligation	11,600,000		11,600,000
Subscription Services And License
Disaggregation Of Revenue [Line Items]
Revenue remaining performance obligation	$ 412,300,000		$ 412,300,000