Significant Accounting Policies - Doubtful Accounts (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses, beginning of period	$ 43,507	$ 49,591	$ 48,783	$ 49,773
Additions charged to expense	11,895	10,291	27,899	30,850
Write-offs, net of recoveries	(10,462)	(10,604)	(31,742)	(31,345)
Allowance for credit losses, end of period	$ 44,940	$ 49,278	$ 44,940	$ 49,278