Accounts Receivable - Credit Loss (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2021 USD ($)
Receivables [Abstract]
Beginning balance of the allowance for credit losses	$ (3,888)
Current period provision for expected credit losses	89
Recoveries of amounts previously written off	199
Ending balance of the allowance for credit losses	$ (3,600)