Fair Value of Assets and Liabilities - Schedule Of Asset Impairment Or Valuation Adjustment Recognized At Fair Value On A Nonrecurring Basis (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring assets	$ 3,374	$ 807
Nonrecurring asset, (gain) loss	(608)	(271)
Level 1 inputs:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring assets	0	0
Level 2 inputs:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring assets	0	0
Level 3 inputs:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring assets	3,374	807
Other Real Estate Owned
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring assets	649	0
Nonrecurring asset, (gain) loss	(268)	0
Other Real Estate Owned | Level 1 inputs:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring assets	0	0
Other Real Estate Owned | Level 2 inputs:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring assets	0	0
Other Real Estate Owned | Level 3 inputs:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring assets	649	0
Loans Measured For Impairment
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring assets	2,725	807
Nonrecurring asset, (gain) loss	(340)	(271)
Loans Measured For Impairment | Level 1 inputs:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring assets	0	0
Loans Measured For Impairment | Level 2 inputs:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring assets	0	0
Loans Measured For Impairment | Level 3 inputs:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring assets	$ 2,725	$ 807
Income Approach Valuation Technique | Interest Rate Lock Commitments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Pull Through Rate	92.30%
Minimum | Market Approach Valuation Technique | Other Real Estate Owned
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount for Lack of Marketability	10.00%
Minimum | Income Approach Valuation Technique | Loans Measured For Impairment
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount Rate	25.00%
Minimum | Income Approach Valuation Technique | Mortgage Servicing Rights
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount Rate	9.25%
Prepayment Rate	10.00%
Minimum | Income Approach Valuation Technique | Earn Out Liability
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount Rate	0.50%
Maximum | Market Approach Valuation Technique | Other Real Estate Owned
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount for Lack of Marketability	25.00%
Maximum | Income Approach Valuation Technique | Loans Measured For Impairment
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount Rate	100.00%
Maximum | Income Approach Valuation Technique | Mortgage Servicing Rights
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount Rate	10.00%
Prepayment Rate	25.80%
Maximum | Income Approach Valuation Technique | Earn Out Liability
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount Rate	2.00%