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Income Taxes - Income Tax Reconciliation (Details) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
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Mar. 31, 2015
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Mar. 31, 2014
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Mar. 31, 2013
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| Income Tax Disclosure [Abstract] | |||
| Translation Adjustment Functional to Reporting Currency, Net of Tax | $ (525)us-gaap_TranslationAdjustmentFunctionalToReportingCurrencyNetOfTax | $ (52)us-gaap_TranslationAdjustmentFunctionalToReportingCurrencyNetOfTax | |
| Notional U.S. federal income tax expense at statutory rate | 21,980us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate | 11,467us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate | 14,543us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate |
| U.S. state income tax provision, net | 66us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes | 243us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes | 263us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes |
| Undistributed foreign earnings | (3,105)thr_IncomeTaxReconcilationUndistributedForeignEarnings | 0thr_IncomeTaxReconcilationUndistributedForeignEarnings | 44thr_IncomeTaxReconcilationUndistributedForeignEarnings |
| Release of valuation allowance for foreign net operating loss carry forward | (634)us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance | 0us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance | 0us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance |
| Rate difference-international subsidiaries | (4,113)us-gaap_IncomeTaxReconciliationTaxContingenciesForeign | (3,409)us-gaap_IncomeTaxReconciliationTaxContingenciesForeign | (270)us-gaap_IncomeTaxReconciliationTaxContingenciesForeign |
| Effect of permanent tax differences, net | (846)us-gaap_IncomeTaxReconciliationNondeductibleExpense | 179us-gaap_IncomeTaxReconciliationNondeductibleExpense | 115us-gaap_IncomeTaxReconciliationNondeductibleExpense |
| Charges/(benefits) related to uncertain tax positions | 61thr_IncomeTaxReconciliationChargeRelatedToUncertainTaxPositions | (797)thr_IncomeTaxReconciliationChargeRelatedToUncertainTaxPositions | 143thr_IncomeTaxReconciliationChargeRelatedToUncertainTaxPositions |
| Release of tax liability from Predecessor owners | 0thr_TaxBenefitfromAmountsDeterminednottobePayabletoPredecessorOwners | (575)thr_TaxBenefitfromAmountsDeterminednottobePayabletoPredecessorOwners | 0thr_TaxBenefitfromAmountsDeterminednottobePayabletoPredecessorOwners |
| Other | (233)us-gaap_IncomeTaxReconciliationOtherAdjustments | (144)us-gaap_IncomeTaxReconciliationOtherAdjustments | (262)us-gaap_IncomeTaxReconciliationOtherAdjustments |
| Total provision for income taxes | $ 13,176us-gaap_IncomeTaxExpenseBenefit | $ 6,964us-gaap_IncomeTaxExpenseBenefit | $ 14,576us-gaap_IncomeTaxExpenseBenefit |
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- Definition
Income Tax Reconcilation, Undistributed Foreign Earnings No definition available.
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- Definition
Income Tax Reconciliation, Charge Related To Uncertain Tax Positions No definition available.
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- Definition
Tax Benefit from Amounts Determined not to be Payable to Predecessor Owners No definition available.
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- Details
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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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- Definition
Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible expenses. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other adjustments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to state and local income tax expense (benefit). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in foreign income tax contingency. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Cumulative translation adjustment resulting from translating foreign currency financial statements into the reporting currency. Reported in equity as part of accumulated other comprehensive income. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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