Contract Balances - Valuation And Qualifying Accounts Activity (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($)
Contract Balances
Balance at Beginning of Period	$ 44,431
Current Period Provision for Expected Credit Losses	12,151
Write-offs Charged Against Allowance	(11,980)
Balance at End of Period	$ 44,602