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Income Taxes - Schedule of Activity Related to Unrecognized Tax Benefits (Detail) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | |
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Dec. 31, 2014
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Dec. 31, 2013
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| Income Tax Disclosure [Abstract] | ||
| Gross unrecognized tax benefits at January 1, | $ 1,100us-gaap_UnrecognizedTaxBenefits | $ 1,100us-gaap_UnrecognizedTaxBenefits |
| Gross increases (decreases) related to prior year tax positions | 0thld_UnrecognizedTaxBenefitsIncreasesDecreaseResultingFromPriorPeriodTaxPositions | 0thld_UnrecognizedTaxBenefitsIncreasesDecreaseResultingFromPriorPeriodTaxPositions |
| Gross increases (decreases) related to current year tax positions | 0thld_UnrecognizedTaxBenefitsIncreasesDecreasesResultingFromCurrentPeriodTaxPositions | 0thld_UnrecognizedTaxBenefitsIncreasesDecreasesResultingFromCurrentPeriodTaxPositions |
| Settlements | 0us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromSettlementsWithTaxingAuthorities | 0us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromSettlementsWithTaxingAuthorities |
| Expiration of the statute of limitations for the assessment of taxes | 0us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations | 0us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations |
| Gross unrecognized tax benefits at December 31, | $ 1,100us-gaap_UnrecognizedTaxBenefits | $ 1,100us-gaap_UnrecognizedTaxBenefits |
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- Definition
Unrecognized tax benefits increases decrease resulting from prior period tax positions. No definition available.
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- Definition
Unrecognized tax benefits increases decreases resulting from current period tax positions. No definition available.
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- Details
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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 of increase in unrecognized tax benefits resulting from settlements with taxing authorities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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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