Consolidated Statement of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		4 Months Ended	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2012	Jun. 30, 2011
Net income	$ 17,170	$ 17,090		$ 29,420	$ 28,840
Other comprehensive income
Amortization of defined benefit plan deferred losses, net of tax	90	60		210	110
Foreign currency translation	(4,870)	2,510		(360)	7,350
Net changes in unrealized loss on interest rate swaps, net of tax	(510)	80		(920)	230
Total other comprehensive income	(5,290)	2,650		(1,070)	7,690
Total comprehensive income	11,880	19,740		28,350	36,530
Net Income (Loss) Attributable to Redeemable Noncontrolling Interest	510	0	270	270	0
Total comprehensive income attributable to TriMas Corporation	$ 11,370	$ 19,740		$ 28,080	$ 36,530