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Commitments and Contingencies (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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| Commitments and Contingencies | |||
| Totaled arrangements under letter of credit guarantees and performance bonds securing performance obligations | $ 11,840us-gaap_GuaranteeObligationsMaximumExposure | ||
| Guarantee obligations secured by cash deposits | 1,388thr_GuaranteeObligationsSecuredByCashDeposits | ||
| Guarantee obligations represented by a reduction of the available amount of the company's short term and long term revolving lines of credit | 749thr_GuaranteeObligationsRepresentedByReductionOfAvailableAmountOfLinesOfCredit | ||
| Cash deposits pledged as collateral on performance bonds and letters of credit | 1,388thr_GuaranteeObligationsCashDepositsPledgedAsCollateral | 1,307thr_GuaranteeObligationsCashDepositsPledgedAsCollateral | |
| Lease expense | 2,904us-gaap_LeaseAndRentalExpense | 3,033us-gaap_LeaseAndRentalExpense | 2,362us-gaap_LeaseAndRentalExpense |
| Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract] | |||
| 2014 | 2,672us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent | ||
| 2015 | 1,700us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears | ||
| 2016 | 1,441us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears | ||
| 2017 | 734us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears | ||
| 2018 | 665us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears | ||
| Thereafter | 1,238us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter | ||
| Operating Leases, Future Minimum Payments Due | 8,450us-gaap_OperatingLeasesFutureMinimumPaymentsDue | ||
| Service fee expense | 2,225us-gaap_InformationTechnologyAndDataProcessing | 2,060us-gaap_InformationTechnologyAndDataProcessing | 1,160us-gaap_InformationTechnologyAndDataProcessing |
| Purchase Obligation, Fiscal Year Maturity [Abstract] | |||
| 2014 | 1,070us-gaap_PurchaseObligationDueInNextTwelveMonths | ||
| 2015 | 345us-gaap_PurchaseObligationDueInSecondYear | ||
| 2016 | 127us-gaap_PurchaseObligationDueInThirdYear | ||
| 2017 | 46us-gaap_PurchaseObligationDueInFourthYear | ||
| 2018 | 0us-gaap_PurchaseObligationDueInFifthYear | ||
| Thereafter | 0us-gaap_PurchaseObligationDueAfterFifthYear | ||
| Purchase Obligation | 1,588us-gaap_PurchaseObligation | ||
| Changes in the product liability | |||
| Balance at beginning of period | 645us-gaap_ProductWarrantyAccrual | 552us-gaap_ProductWarrantyAccrual | 857us-gaap_ProductWarrantyAccrual |
| Provision for warranties issued | 368us-gaap_ProductWarrantyAccrualWarrantiesIssued | 364us-gaap_ProductWarrantyAccrualWarrantiesIssued | 15us-gaap_ProductWarrantyAccrualWarrantiesIssued |
| Settlements | (584)us-gaap_ProductWarrantyAccrualPayments | (271)us-gaap_ProductWarrantyAccrualPayments | (320)us-gaap_ProductWarrantyAccrualPayments |
| Balance at end of period | 429us-gaap_ProductWarrantyAccrual | 645us-gaap_ProductWarrantyAccrual | 552us-gaap_ProductWarrantyAccrual |
| CHS Transactions [Member] | |||
| Changes in the product liability | |||
| Consideration received to settle the CHS Transactions |
1,700thr_ConsiderationReceivedtoSettleRelatedPartyTransactions / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = thr_ChsTransactionsMember |
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| Gain on settlement of related party transactions |
$ 931thr_GainonSettlementofRelatedPartyTransactions / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = thr_ChsTransactionsMember |
$ 0thr_GainonSettlementofRelatedPartyTransactions / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = thr_ChsTransactionsMember |
$ 0thr_GainonSettlementofRelatedPartyTransactions / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = thr_ChsTransactionsMember |
| X | ||||||||||
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- Definition
Consideration Received to Settle Related Party Transactions No definition available.
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- Definition
Gain on Settlement of Related Party Transactions No definition available.
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| X | ||||||||||
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- Definition
Represents the carrying amount, as of the balance sheet date, of cash equivalent securities held for guarantee obligations. No definition available.
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| X | ||||||||||
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- Definition
Represents the amount of guarantee obligations represented by a reduction of the available amount of the entity's revolving lines of credit. No definition available.
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| X | ||||||||||
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- Definition
Represents the amount of guarantee obligations secured by cash deposits. No definition available.
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| X | ||||||||||
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- Definition
Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The amount of expenses incurred in the period for information technology and data processing products and services. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line. No definition available.
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- Details
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- Details
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| X | ||||||||||
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- Definition
Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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| X | ||||||||||
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- Definition
Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Represents the aggregate decrease in the liability related to payments to satisfy claims for standard and extended product warranties. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Represents the aggregate increase in the liability for accruals related to standard and extended product warranties issued during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier. No definition available.
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| X | ||||||||||
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- Definition
Minimum amount of purchase arrangement maturing after the fifth fiscal year following the latest fiscal year. Includes, but not limited to, recorded and unrecorded purchase obligations, long-term purchase commitments, and short-term purchase commitments. No definition available.
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| X | ||||||||||
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- Definition
Minimum amount of purchase arrangement maturing in the fifth fiscal year following the latest fiscal year. Includes, but not limited to, recorded and unrecorded purchase obligations, long-term purchase commitments, and short-term purchase commitments. No definition available.
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| X | ||||||||||
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- Definition
Minimum amount of purchase arrangement maturing in the fourth fiscal year following the latest fiscal year. Includes, but not limited to, recorded and unrecorded purchase obligations, long-term purchase commitments, and short-term purchase commitments. No definition available.
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| X | ||||||||||
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- Definition
Minimum amount of purchase arrangement maturing in the next fiscal year following the latest fiscal year. Includes, but not limited to, recorded and unrecorded purchase obligations, long-term purchase commitments, and short-term purchase commitments. No definition available.
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| X | ||||||||||
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- Definition
Minimum amount of purchase arrangement maturing in the second fiscal year following the latest fiscal year. Includes, but not limited to, recorded and unrecorded purchase obligations, long-term purchase commitments, and short-term purchase commitments. No definition available.
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| X | ||||||||||
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- Definition
Minimum amount of purchase arrangement maturing in the third fiscal year following the latest fiscal year. Includes, but not limited to, recorded and unrecorded purchase obligations, long-term purchase commitments, and short-term purchase commitments. No definition available.
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- Details
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- Details
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