Deferred Costs (Tables)

9 Months Ended

Sep. 30, 2020

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Changes in Balance of Total Deferred Commissions and Total Deferred Professional Service Costs

Changes in the balance of total deferred commissions and total deferred professional service costs during the nine months ended September 30, 2020 are as follows (in thousands):

	As of December 31, 2019				Expense recognized		As of September 30, 2020
			Additions
Deferred commissions	$	14,718	$	1,396	$	(5,517)	$	10,597
Deferred professional service costs	6,711		983		(2,417)		5,277
Total deferred commissions and professional service costs	$	21,429	$	2,379	$	(7,934)	$	15,874