XML 37 R21.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Other Comprehensive Income (Loss) (Notes) | 3 Months Ended
--- | ---
Mar. 31, 2017
Other Comprehensive Income [Abstract] |
Comprehensive Income (Loss) Note [Text Block] | Other Comprehensive Income (Loss) Changes in AOCI by component for the three months ended March 31, 2017 are summarized as follows, net of tax (dollars in thousands):
|  | Defined Benefit Plans |  | Derivative Instruments |  | Foreign Currency Translation |  | Total
Balance, December 31, 2016 |  | $ | (12,120 | ) |  | $ | (2,520 | ) |  | $ | (9,760 | ) |  | $ | (24,400 | )
Net unrealized gains arising during the period (a) |  | — |  |  | 240 |  |  | 1,800 |  |  | 2,040 |
Less: Net realized losses reclassified to net income (b) |  | (170 | ) |  | (140 | ) |  | — |  |  | (310 | )
Net current-period other comprehensive income |  | 170 |  |  | 380 |  |  | 1,800 |  |  | 2,350 |
Balance, March 31, 2017 |  | $ | (11,950 | ) |  | $ | (2,140 | ) |  | $ | (7,960 | ) |  | $ | (22,050 | )
__________________________ (a) Derivative instruments, net of income tax of approximately $0.1 million. See Note 8, "Derivative Instruments," for further details. (b) Defined benefit plans, net of income tax of approximately $0.1 million. See Note 13, "Defined Benefit Plans," for further details. Derivative instruments, net of income tax of approximately $0.1 million. See Note 8, "Derivative Instruments," for further details. Changes in AOCI by component for the three months ended March 31, 2016 are summarized as follows, net of tax (dollars in thousands):
|  | Defined Benefit Plans |  | Derivative Instruments |  | Foreign Currency Translation |  | Total
Balance, December 31, 2015 |  | $ | (12,370 | ) |  | $ | (1,790 | ) |  | $ | 2,860 |  |  | $ | (11,300 | )
Net unrealized losses arising during the period (a) |  | — |  |  | (3,030 | ) |  | (2,660 | ) |  | (5,690 | )
Less: Net realized losses reclassified to net income (b) |  | (150 | ) |  | (70 | ) |  | — |  |  | (220 | )
Net current-period other comprehensive income (loss) |  | 150 |  |  | (2,960 | ) |  | (2,660 | ) |  | (5,470 | )
Balance, March 31, 2016 |  | $ | (12,220 | ) |  | $ | (4,750 | ) |  | $ | 200 |  |  | $ | (16,770 | )
__________________________ (a) Derivative instruments, net of income tax of approximately $1.9 million. See Note 8, "Derivative Instruments," for further details. (b) Defined benefit plans, net of income tax of approximately $0.1 million. See Note 13, "Defined Benefit Plans," for further details. Derivative instruments, net of income tax of approximately $0.1 million. See Note 8, "Derivative Instruments," for further details.

X
- Definition Other Comprehensive [Abstract] + References No definition available. + Details
Name: | trs_OtherComprehensiveIncomeAbstract
Namespace Prefix: | trs_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for comprehensive income, which includes, but is not limited to, 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e689-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=66004124&loc=SL7669619-108580 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e640-108580 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e716-108580 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e709-108580 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e637-108580 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e681-108580 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Reclassification Adjustments -URI http://asc.fasb.org/extlink&oid=6522872 + Details
Name: | us-gaap_ComprehensiveIncomeNoteTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration