Other Balance Sheet Items (Components Of Accounts Payable And Accrued Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Balance Sheet Related Disclosures [Abstract]
Accounts payable	$ 15,907	$ 17,263
Customer deposits, net	52,804	57,025
Accrued employee compensation	49,869	54,746
Taxes Payable, Current	30,308	18,961
Interest Payable	24,318	24,318
Customer incentives payable	13,547	13,771
accrued fees	11,529	11,029
Due to buyer	331	9,875
Other accrued liabilities	11,375	8,220
Total accounts payable and accrued liabilities	$ 209,988	$ 215,208