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Fair Value Measurements - Foreclosed Assets Remeasured and Reported at Fair Value (Detail) (USD $) In Thousands, unless otherwise specified | Sep. 30, 2013 | Sep. 30, 2012
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Foreclosed Assets Remeasured at Initial Recognition [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Carrying value of foreclosed assets prior to remeasurement | $ 3,839 | $ 6,627
Charge-offs recognized in the allowance for loan losses | (588) | (1,291)
Fair value | 3,251 | 5,336
Foreclosed Assets Remeasured Subsequent to Initial Recognition [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Carrying value of foreclosed assets prior to remeasurement | 4,778 | 10,183
Write-downs included in other non-interest expense | (829) | (1,528)
Fair value | $ 3,949 | $ 8,655

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- Definition Carrying amount as of the balance sheet date of all assets obtained in full or partial satisfaction of a debt arrangement through foreclosure proceedings or defeasance; includes real and personal property; equity interests in corporations, partnerships, and joint ventures; and beneficial interests in trusts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4437-111522 + Details
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