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Summary of Significant Accounting Policies - Additional Information (Detail)
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3 Months Ended | |
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Mar. 31, 2014
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Mar. 31, 2013
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| Significant Accounting Policies [Line Items] | ||
| Effective tax rate from continuing operations | 38.00% | 39.00% |
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Maximum [Member]
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| Significant Accounting Policies [Line Items] | ||
| Expected effective tax rate for continuing operations Range | 40.00% | |
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Minimum [Member]
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| Significant Accounting Policies [Line Items] | ||
| Expected effective tax rate for continuing operations Range | 38.00% | |
| X | ||||||||||
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- Definition
Effective income tax rate continuing operations future period. No definition available.
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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