Fair Value Measurements - (Details 2) - Jun. 30, 2015 - Trust preferred securities - USD ($) $ in Thousands	Total
Significant unobservable inputs (Level 3) used in the valuation of assets and liabilities measured at fair value on a recurring basis
Fair Value	$ 19,127
Valuation Technique	Discounted cash flows
Significant Unobservable Inputs	Default rate
Minimum
Significant unobservable inputs (Level 3) used in the valuation of assets and liabilities measured at fair value on a recurring basis
Range of Inputs (percent)	0.00%
Maximum
Significant unobservable inputs (Level 3) used in the valuation of assets and liabilities measured at fair value on a recurring basis
Range of Inputs (percent)	100.00%