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Goodwill and Other Intangible Assets - Acquisition Consideration (Details) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | 0 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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Mar. 02, 2015
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| Business Acquisition [Line Items] | ||||
| Goodwill | $ 105,232us-gaap_Goodwill | $ 114,112us-gaap_Goodwill | ||
| Purchase price net of cash received | 3,890us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired | 2,055us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired | 289us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired | |
| Unitemp | ||||
| Business Acquisition [Line Items] | ||||
| Consideration to or on behalf of sellers at close |
3,890us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet / us-gaap_BusinessAcquisitionAxis = thr_UnitempMember |
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| Fair value of total consideration transferred |
4,000us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_BusinessAcquisitionAxis = thr_UnitempMember |
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| Goodwill |
1,630us-gaap_Goodwill / us-gaap_BusinessAcquisitionAxis = thr_UnitempMember |
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| Purchase price net of cash received |
$ 4,000us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired / us-gaap_BusinessAcquisitionAxis = thr_UnitempMember |
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- Details
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- Definition
Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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