Accounts Receivables - Allowance for Credit Losses (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 1,822	$ 1,880
Charges to income from operations	2,399	7,523
Collections from customers previously reserved and other	(2,274)	(3,178)
Ending balance	$ 1,947	$ 6,225