Credit Losses - Allowance for Credit Losses (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2021 USD ($)
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance of allowance for credit losses at January 1, 2021	$ 15,419
Current period provision (reversal) for expected losses	(2,709)
Write-offs charged against allowance	(1,781)
Recoveries of any amounts previously written off	104
Other	885
Balance of allowance for credit losses at June 30, 2021	$ 11,918