Regulatory Matters (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Regulatory Matters [Abstract]
Required Reserve Balances with Federal Reserve Bank	$ 16,300	$ 12,200
Statutory Accounting Practices, Statutory Amount Available for Dividend Payments	2,600
Holding Company
Regulatory Capital Requirements
Common Equity Tier 1 Capital	$ 288,416
Common Equity Tier 1 Risk Based Capital to Risk Weighted Assets	13.40%
Common Equity Tier 1 Risk Based Capital Required for Capital Adequacy	$ 97,083
Common Equity Tier 1 Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets	4.50%
Common Equity Tier 1 Risk Based Capital Required to be Well Capitalized	$ 140,232
Common Equity Tier 1 Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets	6.50%
Capital	$ 313,974	$ 261,371
Capital to Risk Weighted Assets	14.60%	15.50%
Capital Required for Capital Adequacy	$ 172,593	$ 135,037
Capital Required for Capital Adequacy to Risk Weighted Assets	8.00%	8.00%
Capital Required to be Well Capitalized	$ 215,741	$ 168,797
Capital Required to be Well Capitalized to Risk Weighted Assets	10.00%	10.00%
Tier One Risk Based Capital	$ 295,151	$ 241,707
Tier One Risk Based Capital to Risk Weighted Assets	13.70%	14.30%
Tier One Risk Based Capital Required for Capital Adequacy	$ 129,445	$ 67,519
Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets	6.00%	4.00%
Tier One Risk Based Capital Required to be Well Capitalized	$ 172,593	$ 101,278
Tier One Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets	8.00%	6.00%
Tier One Leverage Capital	$ 295,151	$ 241,707
Tier One Leverage Capital to Average Assets	9.50%	9.90%
Tier One Leverage Capital Required for Capital Adequacy	$ 123,973	$ 97,470
Tier One Leverage Capital Required for Capital Adequacy to Average Assets	4.00%	4.00%
Tier One Leverage Capital Required to be Well Capitalized	$ 154,967	$ 121,837
Tier One Leverage Capital Required to be Well Capitalized to Average Assets	5.00%	5.00%
Risk Weighted Assets	$ 2,157,410	$ 1,687,968

Common Equity Tier 1 Capital

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Common Equity Tier 1 Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets

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Common Equity Tier 1 Risk Based Capital Required to be Well Capitalized

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Regulatory Capital Requirements for Banks [Line Items]

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Regulatory Matters [Abstract]

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Required Reserve Balances with Federal Reserve Bank

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The amount of total capital as defined in the regulations.

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-Publisher FASB
-Name Accounting Standards Codification
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The minimum amount of Total Capital required for capital adequacy purposes under the regulatory framework for prompt corrective action.

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The minimum Total risk based capital ratio (total capital divided by risk weighted assets) required for capital adequacy purposes under the regulatory framework for prompt corrective action.

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The amount of Total Capital required to be categorized as well as capitalized under the regulatory framework for prompt corrective action.

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The Total risk based capital ratio (total capital divided by risk weighted assets) required to be categorized as "well capitalized", in the regulatory framework for prompt corrective action.

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Total Capital divided by risk weighted assets as defined in the regulations.

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Amount of risk-weighted assets as calculated in accordance with U.S. Federal regulatory capital standards.

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Amount of dividends available for payment after computation of statutory restrictions on capital surplus.

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Tier 1 Leverage Capital as defined in the regulations. Also called Core Capital.

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The minimum amount of Tier 1 Leverage Capital required for capital adequacy purposes under the regulatory framework for prompt corrective action.

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The minimum amount of Tier 1 Leverage Capital for capital adequacy purposes divided by average assets as defined in the regulations.

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The amount of Tier 1 Leverage Capital required to be categorized as well capitalized under the regulatory framework for prompt corrective action.

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The amount of Tier 1 Leverage Capital required to be categorized as well capitalized divided by average assets as defined in the regulatory framework for prompt corrective action.

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Tier 1 Leverage Capital divided by average assets as defined in the regulations.

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Tier 1 Risk Based Capital as defined in the regulations.

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The minimum amount of Tier 1 Risk Based Capital required for capital adequacy purposes under the regulatory framework for prompt corrective action.

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The minimum Tier One Capital Ratio (Tier one capital divided by risk-weighted assets) required for capital adequacy purposes under the regulatory framework for prompt corrective action.

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The amount of Tier 1 Risk Based Capital required to be categorized as well capitalized under the regulatory framework for prompt corrective action.

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The Tier 1 capital ratio (Tier 1 capital divided by risk weighted assets) required to be categorized as "well capitalized" under the regulatory framework for prompt corrective action.

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Tier 1 capital divided by risk weighted assets as defined by regulations.

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