Income Taxes (Federal Operating Loss Carryforwards) (Details) (Domestic Tax Authority [Member], USD $) In Thousands, unless otherwise specified	Dec. 31, 2013
Operating Loss Carryforwards [Line Items]
Federal NOL carryforwards	$ 201,042
Operating Loss Carryforwards, Valuation Allowance	167,795
2014-2019
Operating Loss Carryforwards [Line Items]
Federal NOL carryforwards	0
2020-2022
Operating Loss Carryforwards [Line Items]
Federal NOL carryforwards	48,986
2023-2025
Operating Loss Carryforwards [Line Items]
Federal NOL carryforwards	65,878
2026-2028
Operating Loss Carryforwards [Line Items]
Federal NOL carryforwards	32,714
2029-2033
Operating Loss Carryforwards [Line Items]
Federal NOL carryforwards	$ 53,464