Other Balance Sheet Items (Income Tax Receivables And Other Current Assets) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Balance Sheet Related Disclosures [Abstract]
Income tax and other receivables	$ 27,385	$ 39,884
Prepaid expenses	17,300	13,502
Deferred Finance Costs, Current, Net	10,672	10,705
Deferred Tax Assets, Net of Valuation Allowance, Current	1,759	1,743
Other Assets, Miscellaneous, Current	437	449
Other Assets, Current	$ 57,553	$ 66,283