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Borrowings - Borrowings (Parenthetical) (Detail) | 12 Months Ended
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Dec. 31, 2017
Borrowings Under Repurchase Agreements [Line Items] |
Notes payable, variable rate | 2.75%
Notes payable, due date | Jul. 13, 2019
Maximum [Member] |
Borrowings Under Repurchase Agreements [Line Items] |
Federal Home Loan Bank advances, variable and fixed rates | 7.53%
Minimum [Member] |
Borrowings Under Repurchase Agreements [Line Items] |
Federal Home Loan Bank advances, variable and fixed rates | 0.93%

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- Definition Borrowings Under Repurchase Agreements [Line items] + References No definition available. + Details
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- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
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- Definition Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format. + 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)(2)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition States the interest rate applicable to Federal Home Loan Bank advances outstanding as of the Balance Sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822 + Details
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