Summary of Significant Accounting Policies - Summary of Changes in Allowance for Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Accounts Receivable Net [Abstract]
Balance at January 1	$ 2,335	$ 1,356
Provision for expected credit loss, net of recoveries	58	148
Write-offs and other	(132)	(231)
Balance at March 31	$ 2,261	$ 1,273