Allowance for Credit Losses - Summary of Activity in Allowance for Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance at the beginning of period	$ 2,079	$ 1,381	$ 2,021	$ 1,200
Provision for expected credit losses	279	217	542	583
Write-offs charged against the allowance	(94)	(221)	(299)	(406)
Balance at the end of period	$ 2,264	$ 1,377	$ 2,264	$ 1,377