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Capital Ratios (Details) - USD ($) |  | 3 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Jan. 01, 2015 | Mar. 31, 2017 | Dec. 31, 2016 | Jan. 01, 2016 | Dec. 31, 2015 | Jul. 31, 2013
CET 1 ratio |  | 17.05% | 16.95% |  |  |
Tier 1 capital (to Average Assets), Actual Ratio (as a percent) |  | 14.15% | 13.91% |  |  |
Tier 1 capital (to Risk Weighted Assets), Actual Ratio (as a percent) |  | 18.78% | 18.68% |  |  | 6.00%
Total Capital (to Risk Weighted Assets), Actual Ratio (as a percent) |  | 19.56% | 19.47% |  |  |
Total Capital (to Risk Weighted Assets), For Capital Adequacy Purposes Ratio (as a percent) |  |  |  | 0.625% | 2.50% |
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 |  | $ 160,416,000 | $ 160,416,000 |  |  |
Minimum |  |  |  |  |  |
CET 1 ratio |  | 7.00% |  |  |  |
Tier 1 capital (to Risk Weighted Assets), Actual Ratio (as a percent) |  |  |  |  | 4.50% | 4.00%

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- Definition Represents the maximum percentage of capital securities issued by the trust qualifying as Tier I capital on an aggregate basis. + References No definition available. + Details
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- Definition 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) -URI http://asc.fasb.org/extlink&oid=35709795&loc=SL5958568-112826 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1H -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=35709795&loc=d3e65071-112826 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=35709795&loc=SL5958570-112826 + Details
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