|
Stockholder's Equity - Additional Information (Detail) (USD $)
In Millions, except Share data, unless otherwise specified
|
12 Months Ended |
60 Months Ended |
|
Dec. 31, 2013
|
Dec. 31, 2009
|
Dec. 31, 2013
|
| Schedule Of Stockholders Equity [Line Items] |
|
|
|
| Total consolidated assets |
$ 500 |
|
$ 500 |
| higher risk weight |
150.00% |
|
|
| Common equity Tier 1 capital to risk-weighted assets |
2.50% |
|
|
| Liquidation amount |
114.2 |
|
|
| Reduction in liquidation account |
44.1 |
|
|
| Reserve for dividend payment |
35.5 |
|
35.5 |
| Percentage of Loans or advances |
10.00% |
|
|
| Funds available for loans or advances by the Bank to the Company |
$ 23.6 |
|
$ 23.6 |
| Repurchase of shares during the period |
287,652 |
414,000 |
1,691,580 |
| Average price of shares |
$ 14.68 |
|
$ 10.89 |
| Shares authorized for repurchase |
904,224 |
|
904,224 |
| Percentage of shares authorized for repurchase |
31.80% |
|
31.80% |
|
Minimum [Member]
|
|
|
|
| Schedule Of Stockholders Equity [Line Items] |
|
|
|
| Minimum capital requirement of risk-weighted assets |
4.50% |
|
4.50% |
| Increases in minimum Tier 1 capital to risk-based assets requirement |
4.00% |
|
4.00% |
|
Maximum [Member]
|
|
|
|
| Schedule Of Stockholders Equity [Line Items] |
|
|
|
| Increases in minimum Tier 1 capital to risk-based assets requirement |
6.00% |
|
6.00% |