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Summary of Changes in Gross Amount of Unrecognized Tax Benefits (Detail) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended |
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Dec. 31, 2013
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| Accounting Policies [Abstract] | |
| Beginning balance | $ 1,325 |
| Additions based on tax positions related to the current year | |
| Additions based on tax positions related to prior years | |
| Reductions related to tax positions of prior years | |
| Decrease due to statute expirations | (401) |
| Related interest and penalties, net of federal tax benefits | (8) |
| Ending balance | $ 916 |
| X | ||||||||||
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- Definition
Unrecognized Tax Benefits, Gross No definition available.
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of expense 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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| X | ||||||||||
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- Definition
Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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