Basis of Presentation and Significant Accounting Policies Additional Information (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	May 01, 2013	Apr. 30, 2013
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Remaining Amortization Period	9 years 4 months 24 days
Common Stock Voting Restrictions	10.00%	10.00%
Common Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01		$ 0.01
Entity Incorporation, Date of Incorporation	Apr. 29, 1991
Preferred stock, shares authorized	20,000,000	20,000,000		20,000,000
Preferred Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01		$ 0.01
Common stock, shares issued	45,005,932	45,003,461		45,000,000
Warrant Exercised During Period Shares	949	6,312
Mediation Agreement Cash Grant				$ 30,000
Junior surplus note of Ambac Assurance Segregated Account			$ 350,000
Common Stock Transfer Restrictions	5.00%
Common Stock Additional Transfer Restrictions	5.00%
Minimum [Member] | Furniture and Fixtures [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	3 years
Maximum [Member] | Furniture and Fixtures [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	5 years