Allowance for Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses, beginning balance	$ 2,757
Provision for credit losses	(852)	$ 2,229
Write-offs charged against the allowance, net of recoveries of amounts previously written off	(164)
Allowance for credit losses, ending balance	1,741
Trade receivables allowance unrelated to accounts receivable	$ 500	$ 400