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Derivative Instruments - Additional Information (Detail) - Other Assets $ in Millions | Sep. 30, 2015 USD ($)
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Derivative Instruments and Hedging Activities Disclosures [Line Items] |
Collateral posted for derivatives | $ 4.8
Interest Rate Swap |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |
Margin calls made in connection with interest rate swaps | $ 18.8

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- Definition Amount of right to receive cash collateral under master netting arrangements offset against derivative liabilities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958 + Details
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