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Regulatory Matters - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2012
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Dec. 31, 2011
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| Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] | ||
| Minimum regulatory requirement ratio for total capital risk-weighted assets | 8.00% | |
| Minimum ratio of Tier 1 capital to risk-weighted assets | 4.00% | |
| Leverage ratio | 4.00% | |
| Minimum ratio of qualifying total capital to risk-weighted assets for well capitalized | 10.00% | |
| Minimum ratio of Tier 1 capital to average total assets for well capitalized | 6.00% | |
| Daily average reserve balance required to be maintained with the FRB | $ 0 | $ 1.5 |
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Depository Institutions [Member]
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| Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] | ||
| Leverage ratio | 5.00% |
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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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
The mandated reserve amounts required of branches of foreign institutions. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The minimum amount of Tier 1 Leverage Capital for capital adequacy purposes divided by average assets as defined in the regulations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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