Name:	trs_AverageDiscountRateReceivablesFacility
Namespace Prefix:	trs_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Average liquidation period, Receivables pool

No definition available.

Name:	trs_AverageliquidationperiodReceivablespool
Namespace Prefix:	trs_
Data Type:	us-types:durationStringItemType
Balance Type:	na
Period Type:	duration

Debt Instrument, Unused Borrowing Capacity, Fee percentage

No definition available.

Name:	trs_DebtInstrumentUnusedBorrowingCapacityFeePercentage
Namespace Prefix:	trs_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Debt cost, 1-month LIBOR plus

No definition available.

Name:	trs_Debtcost1monthLIBORplus
Namespace Prefix:	trs_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Amount of the fee that accompanies borrowing money under the debt instrument.

No definition available.

Name:	trs_ReceivablesFacililtyDebtAggregateCosts
Namespace Prefix:	trs_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Maximum borrowing capacity under the receivables facility debt arrangement.

No definition available.

Name:	trs_SecuredDebtMaximumBorrowingCapacity
Namespace Prefix:	trs_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Amount of unused borrowing capacity under the long-term financing arrangement that is available to the entity as of the balance sheet date.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Name:	us-gaap_DebtInstrumentUnusedBorrowingCapacityAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910