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Financing Agreement - Additional Information (Detail) (USD $)
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1 Months Ended | ||||
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Sep. 30, 2013
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Dec. 31, 2012
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Aug. 31, 2011
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Dec. 31, 2010
Master Notes
Senior Unsecured Notes, 3.81 Percent, Due May 2018
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Dec. 31, 2010
Master Notes
Senior Unsecured Notes, 4.60 Percent, Due May 2021
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| Line of Credit Facility [Line Items] | |||||
| Revolving loan facility, maximum capacity | $ 350,000,000 | ||||
| Issuance of senior notes | 25,000,000 | 75,000,000 | |||
| Interest rate for purchase agreement | 3.81% | 4.60% | |||
| Maturity date | 5/31/2018 | 5/31/2021 | |||
| Capital lease obligations | 7,222,000 | 7,179,000 | |||
| Capital lease obligations, current | $ 3,318,000 | $ 2,887,000 | |||
| X | ||||||||||
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- Definition
Debt Instruments, Maturity Date No definition available.
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- Definition
Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal, through the balance sheet date and due to be paid within one year (or one operating cycle, if longer) of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Interest rate stated in the contractual debt agreement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt. No definition available.
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