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Supplemental Information - Schedule of Allowance for Doubtful Accounts (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Allowance For Doubtful Accounts Receivable Rollforward      
Balance at beginning of period $ 3,506 $ 5,284 $ 3,853
Bad debt expense 4,062 624 2,480
Write-offs, net of recoveries (41) (2,403) (1,027)
Effect of foreign currency translation 89 1 (22)
Balance at end of period $ 7,616 $ 3,506 $ 5,284