Other Balance Sheet Items (Components Of Accounts Payable And Accrued Liabilities) (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Balance Sheet Related Disclosures [Abstract]
Accounts payable	$ 10,469	$ 17,177
Accrued employee compensation	44,106	49,869
Taxes Payable	34,176	33,435
Interest Payable	33,021	24,318
Deposits, net	46,890	52,804
accrued fees	12,419	11,529
Other accrued liabilities	6,290	7,309
customer incentives payable	(10,971)	(13,547)
Total accounts payable and accrued liabilities	$ 198,342	$ 209,988