XML 32 R89.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Leases Narrative (Details) (USD $) In Millions, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Leases [Abstract] |  |  |
Operating Leases, Future Minimum Payments Due, For Discontinued Operations Annually | $ 2.4 |  |
Operating Leases, Rent Expense, Net | $ 22.8 | $ 18.9 | $ 14.8

X
- Definition Operating Leases, Future Minimum Payments Due, For Discontinued Operations Annually + References No definition available. + Details
Name: | trs_OperatingLeasesFutureMinimumPaymentsDueForDiscontinuedOperationsAnnually
Namespace Prefix: | trs_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

X
- Definition Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41499-112717 + Details
Name: | us-gaap_OperatingLeasesRentExpenseNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration