Summary of Significant Accounting Policies (Summary of Activity Recorded within the Allowance for Doubtful Accounts) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance	$ 3,529	$ 5,951	$ 6,170
Bad debt expense, net of recoveries	898	1,321	2,577
Accounts written off against allowance and other adjustments	(689)	(4,128)	(2,796)
Ending balance	3,738	3,529	5,951
Cumulative Effect, Period of Adoption, Adjustment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance	$ 0	385	0
Ending balance		$ 0	$ 385