Income Taxes - Tax Attributes-Net Operating Losses (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014
United Kingdom
Operating Loss Carryforwards
Operating loss carryforwards	$ 61,406
Netherlands
Operating Loss Carryforwards
Operating loss carryforwards	36,111
Spain
Operating Loss Carryforwards
Operating loss carryforwards	29,402
France
Operating Loss Carryforwards
Operating loss carryforwards	21,011
Germany
Operating Loss Carryforwards
Operating loss carryforwards	15,540
Brazil
Operating Loss Carryforwards
Operating loss carryforwards	8,532
Italy
Operating Loss Carryforwards
Operating loss carryforwards	5,938
Singapore
Operating Loss Carryforwards
Operating loss carryforwards	3,948
Australia
Operating Loss Carryforwards
Operating loss carryforwards	2,868
Chile
Operating Loss Carryforwards
Operating loss carryforwards	2,773
Other foreign net operating losses with indefinite carryforward
Operating Loss Carryforwards
Operating loss carryforwards	929
Internal Revenue Service (IRS)
Operating Loss Carryforwards
Operating loss carryforwards	425,803
Operating loss carryforwards with limitations on use	131,305
Annual limit of operating loss carryforwards	13,600
U.S. State and Local Jurisdiction
Operating Loss Carryforwards
Operating loss carryforwards	$ 1,126,834

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