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General - Additional Information (Detail) | 9 Months Ended |  |
--- | --- | --- | ---
Sep. 30, 2013 | Dec. 31, 2012 | Sep. 30, 2012
Summary Of Significant Accounting Policies [Line Items] |  |  |
Number of business segment | 1 |  |
Each share convertible into shares | 69 |  |
Minimum time for conversion | 5 years |  |
Date for redeem shares at face value | May 20, 2014 |  |
Series A Preferred Stock |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Dividend Rate | 6.00% |  |
Number of Series A Noncumulative Preferred Stock Shares | 15,471 | 17,421 | 17,921

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- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. + References No definition available. + Details
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- Definition Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.28) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29 -Article 5 + Details
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