Other Balance Sheet Information - Other Current Assets (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Other current assets:
Deferred tax assets	$ 11,707	$ 20,026
Prepaid current assets	28,435	27,736
Reinsurance receivable	9,113	10,217
VAT asset	21,683	32,762
Other	25,608	10,092
Total	$ 96,546	$ 100,833