Quantitative Information About Level 3 Fair Value Measurements - Cash Flow Recognition (Details) - 6 months ended Jun. 30, 2015	Total
Nominal Cashflows [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Valuation Technique	Discounted Cash Flow
Discounted Cashflows [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Valuation Technique	Discounted Cash Flow
Maximum [Member] | Nominal Cashflows [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Remaining Life Range	13.2
Fair Value Inputs Discount Rate	27.50%
Maximum [Member] | Discounted Cashflows [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Remaining Life Range	3.6
Fair Value Inputs Discount Rate	27.50%
Minimum [Member] | Nominal Cashflows [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Remaining Life Range	0.2
Fair Value Inputs Discount Rate	27.50%
Minimum [Member] | Discounted Cashflows [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Remaining Life Range	0.2
Fair Value Inputs Discount Rate	27.50%
Weighted Average [Member] | Nominal Cashflows [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Remaining Life Range	6.5
Fair Value Inputs Discount Rate	27.50%
Weighted Average [Member] | Discounted Cashflows [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Remaining Life Range	1
Fair Value Inputs Discount Rate	27.50%