Summary Of Major Accounting Policies-Leases - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Jan. 01, 2020
Accounting Policies [Abstract]
Operating Lease, Right-of-Use Asset	$ 146,097,000	$ 141,206,000
Operating Lease, Liability	$ 177,284,000
Operating Leases, Operating Lease Term	15 years
Stockholders' Equity, Other		(2,273,000)	$ (5,860,000)
Acquired Finite-lived Intangible Asset, Weighted Average Useful Life	2 years
Accounts Receivable, Allowance for Credit Loss, Writeoff	$ 29,549,000
HistoricalCreditLossAnalysisPeriod	3 years
Accounts Receivable, Allowance for Credit Loss	$ 900,000	3,900,000	$ 7,500,000	$ 2.3
Financing Receivable, Allowance for Credit Loss	300,000	600,000
Financing Receivable, Allowance for Credit Loss, Writeoff	(53,000,000)	(11,000,000)
Contract Assets, Allowance for Credit Losses, Write Off	(38,032,000)
Interest Receivable	$ 1,200,000	$ 1,500,000