Revenue (Tables)

3 Months Ended

Mar. 31, 2022

Revenue from Contract with Customer [Abstract]

Summary of revenue

The following table presents a summary of revenue:

	Three Months Ended March 31,
(in thousands)	2022		2021
Subscription revenue	$	142,687	$	107,402
Perpetual license and maintenance revenue	12,873		12,405
Professional services and other revenue	3,808		3,382
Revenue	$	159,368	$	123,189

Activity of deferred contract costs

The following summarizes the activity of deferred incremental costs of obtaining a contract:

	Three Months Ended March 31,
(in thousands)	2022		2021
Beginning balance	$	99,949	$	78,876
Capitalization of contract acquisition costs	10,330		7,224
Amortization of deferred contract acquisition costs	(11,016)		(8,800)
Ending balance	$	99,263	$	77,300