Contract Balances - Valuation And Qualifying Accounts Activity (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Contract Balances
Balance at Beginning of Period	$ 38,534	$ 72,278	$ 19,280
Current Period Provision for Expected Credit Losses	79,664	54,083	84,697
Write-offs Charged Against Allowance	(73,845)	(87,919)	(56,075)
Acquisitions	78	92	24,376
Balance at End of Period	$ 44,431	$ 38,534	$ 72,278