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Income Taxes Summary of Operating Loss Carryforwards (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Operating Loss Carryforwards [Line Items]  
U.S. federal and non-U.S. NOLs $ 111,719
State taxing jurisdiction NOLs 15,077
U.S. federal, non-U.S., and state tax credit carryforwards 1,564
U.S. federal capital loss carryforwards 1,088
Total 129,448
2014 Through 2023
  
Operating Loss Carryforwards [Line Items]  
U.S. federal and non-U.S. NOLs 1,633
State taxing jurisdiction NOLs 1,199
U.S. federal, non-U.S., and state tax credit carryforwards 203
U.S. federal capital loss carryforwards 1,088
Total 4,123
2024 Through 2033
  
Operating Loss Carryforwards [Line Items]  
U.S. federal and non-U.S. NOLs 110,086
State taxing jurisdiction NOLs 13,878
U.S. federal, non-U.S., and state tax credit carryforwards 748
U.S. federal capital loss carryforwards 0
Total 124,712
Indefinite
  
Operating Loss Carryforwards [Line Items]  
U.S. federal and non-U.S. NOLs 0
State taxing jurisdiction NOLs 0
U.S. federal, non-U.S., and state tax credit carryforwards 613
U.S. federal capital loss carryforwards 0
Total $ 613