Other Balance Sheet Items (Components Of Accounts Payable And Accrued Liabilities) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Balance Sheet Related Disclosures [Abstract]
Accounts payable	$ 24,140	$ 29,335
Accrued employee compensation	34,719	49,470
Customer deposits, net	32,085	30,103
Taxes payable and other tax liabilities	33,728	47,079
Other accrued liabilities	41,886	34,291
Total accounts payable and accrued liabilities	$ 166,558	$ 190,278