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Revolving Line of Credit - Additional Information (Detail) (USD $) | 12 Months Ended
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Sep. 30, 2014
Line of Credit Facility [Line Items] |
Unsecured revolving line of credit | $ 200,000,000
Revolving credit facility, expiration date | Sep. 28, 2016
Revolving credit facility, utilization fees, percentage of total credit facility commitment to exceed | 50.00%
Credit facility restrictive covenant, maximum consolidated leverage ratio | 3.0
Credit facility restrictive covenant, minimum fixed charge ratio | 2.5
Borrowings outstanding | $ 99,000,000
Interest rate of borrowings outstanding | 1.285%
Federal Fund Rate |
Line of Credit Facility [Line Items] |
Debt instrument basis spread on variable rate | 0.50%
Libor | Minimum |
Line of Credit Facility [Line Items] |
Debt instrument basis spread on variable rate | 1.00%
Libor | Maximum |
Line of Credit Facility [Line Items] |
Debt instrument basis spread on variable rate | 1.625%

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- Definition Fixed Charge Coverage Ratio, Minimum + References No definition available. + Details
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- Definition Leverage Ratio Maximum + References No definition available. + Details
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- Definition Percentage of borrowings to total credit facility that if exceeded utilization fees are required to be paid. + 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 Amount borrowed under the credit facility as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition Date the credit facility terminates, 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 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition The effective interest rate at the end of the reporting period. + 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 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + 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 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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