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Other Long-term Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Other Liabilities Disclosure [Abstract]
Asbestos-related liability noncurrent	$ 33,770	$ 27,200
Other long-term liabilities other than asbestos liability	28,490	15,340
Other Liabilities, Noncurrent	$ 62,260	$ 42,540

X

- Definition

Asbestos-related liability noncurrent portion

+ References

No definition available.

+ Details

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

X

- Definition

Other long-term liabilities other than asbestos liability

+ References

No definition available.

+ Details

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

X

- References

No definition available.

+ Details

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

X

- Definition

Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(24))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

+ Details

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