Summary Quarterly Financial Data

12 Months Ended

Dec. 31, 2012

Quarterly Financial Information Disclosure [Abstract]

Summary Quarterly Financial Data

Summary Quarterly Financial Data

	As of December 31, 2012
	First Quarter			Second Quarter		Third Quarter		Fourth Quarter
	(unaudited, dollars in thousands, except for per share data)
Net sales	$	297,570		$	338,430	$	335,870	$	301,040
Gross profit	78,910			95,890		90,140		78,820
Net income (loss)	12,250			17,170		19,960		(13,090		)
Less: Net income (loss) attributable to noncontrolling interests	(240		)	510		1,290		850
Net income (loss) attributable to TriMas Corporation	$	12,490		$	16,660	$	18,670	$	(13,940	)
Earnings per share attributable to TriMas Corporation—basic:
Net income (loss) per share	$	0.36		$	0.45	$	0.48	$	(0.36	)
Weighted average shares—basic	34,592,267			37,345,026		39,045,282		39,101,163
Earnings per share attributable to TriMas Corporation—diluted:
Net income (loss) per share	$	0.36		$	0.44	$	0.47	$	(0.35	)
Weighted average shares—diluted	35,027,899			37,694,221		39,508,503		39,680,565

	As of December 31, 2011
	First Quarter		Second Quarter		Third Quarter		Fourth Quarter
	(unaudited, dollars in thousands, except for per share data)
Net sales	$	258,560	$	288,090	$	277,660	$	259,650
Gross profit	71,820		88,290		81,940		75,650
Income from continuing operations	10,690		16,010		16,980		7,130
Income from discontinued operations, net of income taxes	1,060		1,080		1,290		6,120
Net income	11,750		17,090		18,270		13,250
Earnings per share—basic:
Continuing operations	$	0.32	$	0.47	$	0.49	$	0.21
Discontinued operations	0.03		0.03		0.04		0.18
Net income per share	$	0.35	$	0.50	$	0.53	$	0.39
Weighted average shares—basic	33,913,610		34,215,734		34,417,879		34,437,097
Earnings per share—diluted:
Continuing operations	$	0.31	$	0.46	$	0.49	$	0.20
Discontinued operations	0.03		0.03		0.03		0.18
Net income per share	$	0.34	$	0.49	$	0.52	$	0.38
Weighted average shares—diluted	34,599,076		34,769,576		34,901,277		34,961,772