Other Balance Sheet Items (Components Of Accounts Payable And Accrued Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Balance Sheet Related Disclosures [Abstract]
Accounts payable	$ 23,298	$ 29,335
Accrued employee compensation	51,851	49,470
Customer deposits, net	48,307	30,103
Interest Payable	27,701	21,138
Taxes payable and other tax liabilities	16,943	47,079
Other accrued liabilities	20,071	13,153
Total accounts payable and accrued liabilities	$ 188,171	$ 190,278