Amount before allocation of valuation allowances of deferred tax asset attributable to deductible capital loss carryforwards.

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Income Taxes - Valuation Allowance (USD $)	12 Months Ended
Income Taxes - Valuation Allowance (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Tax Credit Carryforward [Line Items]
Deferred Tax Assets, Valuation Allowance	$ 2,100,000	$ 37,900,000
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount	(13,542,000)	(2,693,000)	6,000
Deferred Tax Assets, Capital Loss Carryforwards	2,105,000	38,532,000
Tax Credit Carryforward, Amount	6,000,000us-gaap_TaxCreditCarryforwardAmount
Expired Capital Loss Carryforward [Member]
Tax Credit Carryforward [Line Items]
Deferred Tax Assets, Valuation Allowance	22,300
Deferred Tax Assets, Capital Loss Carryforwards	22,300,000
Tax Credit Carryforward, Amount	63,700,000
Expires after one year before year two [Member]
Tax Credit Carryforward [Line Items]
Tax Credit Carryforward, Amount	100,000
Expires after year two before year three [Member]
Tax Credit Carryforward [Line Items]
Tax Credit Carryforward, Amount	$ 5,900,000