Annual report pursuant to Section 13 and 15(d)

Income Taxes (Summary of tax net operating loss carryforwards) (Details)

v2.4.0.8
Income Taxes (Summary of tax net operating loss carryforwards) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Federal
  
Operating Loss Carryforwards [Line Items]  
Net operating loss carryforwards $ 294,464
Federal | 2020
  
Operating Loss Carryforwards [Line Items]  
Net operating loss carryforwards 39,969
Federal | 2021
  
Operating Loss Carryforwards [Line Items]  
Net operating loss carryforwards 29,614
Federal | 2022
  
Operating Loss Carryforwards [Line Items]  
Net operating loss carryforwards 14,081
Federal | 2023
  
Operating Loss Carryforwards [Line Items]  
Net operating loss carryforwards 3,968
Federal | 2024
  
Operating Loss Carryforwards [Line Items]  
Net operating loss carryforwards 722
Federal | 2025
  
Operating Loss Carryforwards [Line Items]  
Net operating loss carryforwards 737
Federal | 2026
  
Operating Loss Carryforwards [Line Items]  
Net operating loss carryforwards 150
Federal | 2027
  
Operating Loss Carryforwards [Line Items]  
Net operating loss carryforwards 1,010
Federal | 2028
  
Operating Loss Carryforwards [Line Items]  
Net operating loss carryforwards 39,879
Federal | 2029
  
Operating Loss Carryforwards [Line Items]  
Net operating loss carryforwards 48,370
Federal | 2031
  
Operating Loss Carryforwards [Line Items]  
Net operating loss carryforwards 110,933
Federal | 2033
  
Operating Loss Carryforwards [Line Items]  
Net operating loss carryforwards 5,031
State
  
Operating Loss Carryforwards [Line Items]  
Net operating loss carryforwards 287,208
State | 2020
  
Operating Loss Carryforwards [Line Items]  
Net operating loss carryforwards 38,954
State | 2021
  
Operating Loss Carryforwards [Line Items]  
Net operating loss carryforwards 28,987
State | 2022
  
Operating Loss Carryforwards [Line Items]  
Net operating loss carryforwards 13,788
State | 2023
  
Operating Loss Carryforwards [Line Items]  
Net operating loss carryforwards 3,903
State | 2024
  
Operating Loss Carryforwards [Line Items]  
Net operating loss carryforwards 0
State | 2025
  
Operating Loss Carryforwards [Line Items]  
Net operating loss carryforwards 0
State | 2026
  
Operating Loss Carryforwards [Line Items]  
Net operating loss carryforwards 0
State | 2027
  
Operating Loss Carryforwards [Line Items]  
Net operating loss carryforwards 0
State | 2028
  
Operating Loss Carryforwards [Line Items]  
Net operating loss carryforwards 39,715
State | 2029
  
Operating Loss Carryforwards [Line Items]  
Net operating loss carryforwards 47,558
State | 2031
  
Operating Loss Carryforwards [Line Items]  
Net operating loss carryforwards 109,376
State | 2033
  
Operating Loss Carryforwards [Line Items]  
Net operating loss carryforwards $ 4,927