Other Assets (Summary of Credit Loss Allowance) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at January 1, 2021	$ 85,447
Loss provision for receivables	43,822	$ 81,600
Write-offs	(29,077)
Balance at December 31, 2021	$ 100,192	$ 85,447