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v2.4.1.9

Off Balance Sheet Activities - Additional Information (Detail) | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013
Fair Value Assets Measured On Recurring Basis Unobservable Input [Line Items] |  |
Commitments to make loans periods | 60 days or less |
Minimum [Member] |  |
Fair Value Assets Measured On Recurring Basis Unobservable Input [Line Items] |  |
Fixed Interest rate loan | 1.69%us-gaap_LongTermDebtPercentageBearingFixedInterestRate / us-gaap_RangeAxis = us-gaap_MinimumMember | 2.15%us-gaap_LongTermDebtPercentageBearingFixedInterestRate / us-gaap_RangeAxis = us-gaap_MinimumMember
Fixed rate loan Maturities range | 3 months | 3 months
Maximum [Member] |  |
Fair Value Assets Measured On Recurring Basis Unobservable Input [Line Items] |  |
Fixed Interest rate loan | 18.00%us-gaap_LongTermDebtPercentageBearingFixedInterestRate / us-gaap_RangeAxis = us-gaap_MaximumMember | 18.00%us-gaap_LongTermDebtPercentageBearingFixedInterestRate / us-gaap_RangeAxis = us-gaap_MaximumMember
Fixed rate loan Maturities range | 20 years | 20 years

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- Definition Description of the payment terms of the debt instrument (for example, whether periodic payments include principal and frequency of payments) and discussion about any contingencies associated with the payment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(3)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate. + 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 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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