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Contingent Liabilities - Additional Information (Detail) (USD $) In Millions, unless otherwise specified | 12 Months Ended
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Dec. 31, 2012 Accountsholder Age
Commitments And Contingent Liabilities [Line Items] |
Minimum interest rate | 8.00%
Number of account holders of specified average age | 237
Market Rate Savings | $ 11.5
Specified average age of account holders | 64
Breach of contract [Member] |
Commitments And Contingent Liabilities [Line Items] |
Minimum interest rate | 3.50%

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- Details
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- Definition Number of account holders of specified average age. + References No definition available. + Details
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- Definition Percentage of interest rate on deposits. + References No definition available. + Details
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- Definition Amount of interest-bearing domestic savings deposit liabilities. Saving deposits bear interest and have no stated maturity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.12) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 12 -Article 9 + Details
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