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Capital Ratios (Details) - USD ($)		3 Months Ended
	Jan. 01, 2015	Mar. 31, 2016	Jan. 01, 2016	Dec. 31, 2015	Jul. 31, 2013
CET 1 ratio		16.78%		16.81%
Tier 1 capital (to Average Assets), Actual Ratio (as a percent)		13.39%		13.15%
Tier 1 capital (to Risk Weighted Assets), Actual Ratio (as a percent)		18.64%		18.69%	6.00%
Total Capital (to Risk Weighted Assets), Actual Ratio (as a percent)	4.50%	19.43%		19.54%
Total Capital (to Risk Weighted Assets), For Capital Adequacy Purposes Ratio (as a percent)	2.50%		0.625%
Term of mandatory compliance	4 years
Percentage of capital securities issued by trust qualifying as Tier I capital, maximum		25.00%
Percentage of capital securities issued by trust qualifying as Tier II capital, minimum		25.00%
Capital securities issued by the trust, qualifying as Tier I capital		$ 161,416,000		$ 161,416,000
Minimum
CET 1 ratio		7.00%
Tier 1 capital (to Risk Weighted Assets), Actual Ratio (as a percent)					4.00%

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Represents capital securities issued by trust that is qualified as Tier I capital as on the reporting date.

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Represents information pertaining to Common Equity Tier 1 ("CET1")ratio.

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Period representing the new rule of mandatory compliance.

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Represents the maximum percentage of capital securities issued by the trust qualifying as Tier I capital on an aggregate basis.

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Represents the minimum percentage of capital securities issued by the trust qualifying as Tier II capital on an aggregate basis.

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 505
-Section 50
-Paragraph 1
-Subparagraph (c)(1)
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Total Capital divided by risk weighted assets as defined in the regulations.

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

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

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