Deferred Costs (Tables)

6 Months Ended

Jun. 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 six months ended June 30, 2020 are as follows (in thousands):

	As of December 31, 2019				Expense recognized		As of June 30, 2020
			Additions
Deferred commissions	$	14,718	$	920	$	(3,919)	$	11,719
Deferred professional service costs	6,711		663		(1,657)		5,717
Total deferred commissions and professional service costs	$	21,429	$	1,583	$	(5,576)	$	17,436