Income Taxes (Operating Loss Carryforwards) (Details) $ in Thousands	Dec. 31, 2016 USD ($)
Foreign | Ireland
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	$ 11,758
Foreign | Luxembourg
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	4,246,531
Domestic
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	41,087
State and Local Jurisdiction
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	98,645
State and Local Jurisdiction | Capital Loss Carryforward
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	$ 5,044