Consolidated Statement of Income Statement (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Net sales	$ 366,490us-gaap_SalesRevenueNet	$ 365,390us-gaap_SalesRevenueNet
Cost of sales	(268,270)us-gaap_CostOfGoodsAndServicesSold	(269,450)us-gaap_CostOfGoodsAndServicesSold
Gross profit	98,220us-gaap_GrossProfit	95,940us-gaap_GrossProfit
Selling, general and administrative expenses	(70,720)	(63,670)
Operating profit	27,500us-gaap_OperatingIncomeLoss	32,270us-gaap_OperatingIncomeLoss
Other expense, net:
Interest expense	(4,670)us-gaap_InterestExpense	(3,470)us-gaap_InterestExpense
Other expense, net	(2,570)us-gaap_OtherNonoperatingIncomeExpense	(950)us-gaap_OtherNonoperatingIncomeExpense
Other expense, net	(7,240)us-gaap_NonoperatingIncomeExpense	(4,420)us-gaap_NonoperatingIncomeExpense
Income before income tax expense	20,260	27,850
Income tax expense	(6,280)us-gaap_IncomeTaxExpenseBenefit	(8,620)us-gaap_IncomeTaxExpenseBenefit
Income from continuing operations	13,980	19,230
Income from discontinued operations, net of income taxes	0	150
Net Income	13,980us-gaap_ProfitLoss	19,380us-gaap_ProfitLoss
Net income attributable to redeemable noncontrolling interests	0	810
Net income attributable to TriMas Corporation	$ 13,980us-gaap_NetIncomeLoss	$ 18,570us-gaap_NetIncomeLoss
Basic earnings per share attributable to TriMas Corporation:
Continuing operations	$ 0.31	$ 0.41
Discontinued operations	$ 0.00	$ 0.00
Net income per share	$ 0.31us-gaap_EarningsPerShareBasic	$ 0.41us-gaap_EarningsPerShareBasic
Weighted average common shares—basic	44,997,961	44,768,594
Diluted earnings per share attributable to TriMas Corporation:
Continuing operations	$ 0.31	$ 0.41
Discontinued operations	$ 0.00	$ 0.00
Net income per share	$ 0.31us-gaap_EarningsPerShareDiluted	$ 0.41us-gaap_EarningsPerShareDiluted
Weighted average common shares—diluted	45,400,843	45,186,114

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 2

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.2(a),(d))

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688