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Summary of Activity Under Credit Arrangements, Excluding Acquired Borrowings (Detail) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
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Dec. 31, 2012
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Dec. 31, 2011
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Dec. 31, 2010
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| Debt Instrument [Line Items] | |||
| Total borrowings at end of period | $ 100,000 | $ 100,000 | $ 200,000 |
| Average outstanding borrowings during year | 100,000 | 133,800 | 200,000 |
| Maximum outstanding borrowings during year | $ 100,000 | $ 200,000 | $ 200,000 |
| Interest rate at end of period | 4.40% | 4.40% | 0.65% |
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- Definition
The effective interest rate at the end of the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Average amount borrowed under the credit facility during the period. No definition available.
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- Definition
Maximum amount borrowed under the credit facility at any time during the period. No definition available.
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- Definition
Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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