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Income Taxes - Additional Information (Detail) (USD $)
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3 Months Ended | 12 Months Ended | |||
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Mar. 31, 2014
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Mar. 31, 2013
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Mar. 31, 2014
Maximum
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Mar. 31, 2013
Maximum
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Dec. 31, 2013
Tax loss carrybacks to 2010 and 2011
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| Income Tax Expense (Benefit), Continuing Operations [Abstract] | |||||
| Income tax expense | $ 6,648,000 | $ 14,902,000 | |||
| Effective tax rate | 37.30% | 35.90% | |||
| Federal statutory income tax rate | 35.00% | ||||
| Accrued interest related to unrecognized tax benefit | 100,000 | 100,000 | |||
| Unrecognized Tax Benefits | 9,500,000 | ||||
| Proceeds from income tax refunds | $ 59,100,000 | ||||
| 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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- Definition
Percentage of domestic federal statutory tax rate applicable to pretax income (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount 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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- Details
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- Definition
The amount of cash received during the period as refunds for the overpayment of taxes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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