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Income Taxes - Balances of Unrecognized Tax Benefits (Detail) (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2012
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Dec. 31, 2011
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Dec. 31, 2010
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Dec. 31, 2009
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| Unrecognized Tax Benefits [Line Items] | ||||
| Unrecognized tax benefits | $ 51,244 | $ 47,379 | $ 50,632 | $ 45,201 |
| Portion that, if recognized, would reduce tax expense and effective tax rate | 43,910 | 39,824 | 43,077 | |
| Accrued interest on unrecognized tax benefits | 6,088 | 7,180 | 6,524 | |
| Accrued penalties on unrecognized tax benefits | 127 | 163 | 163 | |
| Reasonably possible reduction to the balance of unrecognized tax benefits in succeeding 12 months lower bound | 0 | 0 | 0 | |
| Reasonably possible reduction to the balance of unrecognized tax benefits in succeeding 12 months upper bound | 11,479 | 12,110 | 8,786 | |
| Portion that, if recognized, would reduce tax expense and effective tax rate lower bound | 0 | 0 | 0 | |
| Portion that, if recognized, would reduce tax expense and effective tax rate upper bound | $ 9,645 | $ 10,221 | $ 6,896 |
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- Definition
Unrecognized tax benefit portion that if recognized would reduce tax expense and effective tax rate lower bound. No definition available.
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- Definition
Unrecognized tax benefit portion that if recognized would reduce tax expense and effective tax rate upper bound. No definition available.
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- Details
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- Definition
The estimated lower bound of the reasonably possible change in the total amount of the unrecognized tax benefit (that will significantly increase or decrease within twelve months of the balance sheet date) for a tax position taken. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The estimated upper bound of the reasonably possible change in the total amount of the unrecognized tax benefit (that will significantly increase or decrease within twelve months of the balance sheet date) for a tax position taken. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The gross amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
This element represents the amount of statutory penalties accrued as of the date of the statement of financial position for a tax position claimed or expected to be claimed by the entity, in its tax return, that does not meet the minimum statutory threshold to avoid payment of penalties. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
This element represents the amount of interest expense accrued as of the date of the statement of financial position for an underpayment of income taxes computed by applying the applicable statutory rate of interest to the difference between a tax position recognized for financial reporting purposes and the amount previously taken or expected to be taken in a tax return of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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