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Subsequent Events - Additional Information (Detail) (USD $)
In Millions, except Share data, unless otherwise specified |
3 Months Ended | |
|---|---|---|
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Mar. 31, 2013
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Apr. 19, 2013
Subsequent Event
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| Subsequent Event [Line Items] | ||
| Revolving bank credit facility borrowing base | $ 725.0 | $ 800.0 |
| Additional share authorized under share based compensation | 4,000,000 |
| X | ||||||||||
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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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| X | ||||||||||
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- Definition
Number of additional shares authorized for issuance under an established share-based compensation plan. No definition available.
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| X | ||||||||||
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- Details
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