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Income Taxes - Valuation Allowances (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance at January 1 | $ 2,006 | $ 1,833 | $ 1,868
Charged to costs and expenses | 6,625 | 0 | 0
(Deductions)/Other | (799) | 173 | (35)
Balance at December 31 | $ 7,832 | $ 2,006 | $ 1,833

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- Definition Valuation Allowance Deferred Tax Asset, Change in Amount, Charged to Costs and Expenses + References No definition available. + Details
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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 + Details
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Definition Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=37586315&loc=d3e32123-109318 + Details
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