Consolidated Statement of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		7 Months Ended	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2012	Sep. 30, 2011
Net income	$ 19,960	$ 18,270		$ 49,380	$ 47,110
Other comprehensive income
Amortization of defined benefit plan deferred (gains) losses, net of tax	(740)	60		(530)	170
Foreign currency translation	3,040	(11,340)		2,680	(3,990)
Net changes in unrealized loss on interest rate swaps, net of tax	(80)	0		(1,000)	230
Total other comprehensive income (loss)	2,220	(11,280)		1,150	(3,590)
Total comprehensive income	22,180	6,990		50,530	43,520
Net Income Attributable to Redeemable Noncontrolling Interest	1,290	0	1,560	1,560	0
Total comprehensive income attributable to TriMas Corporation	$ 20,890	$ 6,990		$ 48,970	$ 43,520