Contract Balances (Tables)

3 Months Ended

Mar. 31, 2022

Contract Balances

Valuation and Qualifying Accounts

Allowance for credit losses	Balance at Beginning of Period		Current Period Provision for Expected Credit Losses		Write-offs Charged Against Allowance		Balance at End of Period
	(In thousands)
For the three months ended March 31, 2022	$	32,861	$	11,797	$	(15,740)	$	28,918

Schedule of Contract balances

	As of
	March 31,		December 31,
	2022		2021
	(In thousands)
Contract liabilities	$	530,995	$	558,700