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Basis of Presentation Basis of Presentation - Cequent Spinoff (Details) (USD $) | Mar. 31, 2015 number
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Organization, Consolidation and Presentation of Financial Statements [Abstract] |
number of businesses | 2 trs_Numberofbusinesses
Expected future spinoff costs | $ 30,000,000 trs_Expectedfuturespinoffcosts

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- Definition Total estimated one time transaction costs in connection with separation of the Cequent businesses + References No definition available. + Details
Name: | trs_Expectedfuturespinoffcosts
Namespace Prefix: | trs_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

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- Definition Number of standalone businesses after spinoff is effected + References No definition available. + Details
Name: | trs_Numberofbusinesses
Namespace Prefix: | trs_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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- Details
Name: | us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration