Supplemental Information - Schedule of Allowance for Doubtful Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Allowance For Doubtful Accounts Receivable Rollforward
Balance at beginning of period	$ 5,284	$ 3,853	$ 2,591
Bad debt expense	624	2,480	1,480
Write-offs, net of recoveries	(2,403)	(1,027)	(219)
Effect of foreign currency translation	1	(22)	1
Balance at end of period	$ 3,506	$ 5,284	$ 3,853