Consolidated Statement of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Net Income	$ 13,980us-gaap_ProfitLoss	$ 19,380us-gaap_ProfitLoss
Other comprehensive income
Defined benefit pension and postretirement plans, net of tax	250	180
Foreign currency translation	(6,540)	1,880
Derivative instruments, net of tax	(390)	310
Total other comprehensive income (loss)	(6,680)	2,370
Total comprehensive income	7,300	21,750
Net Income Attributable to Redeemable Noncontrolling Interest	0	810
Total comprehensive income attributable to TriMas Corporation	$ 7,300us-gaap_ComprehensiveIncomeNetOfTax	$ 20,940us-gaap_ComprehensiveIncomeNetOfTax

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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