Consolidated Statement of Shareholders' Equity Statement (USD $) In Thousands	Total	Common Stock	Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Income
Balances at Dec. 31, 2011	$ 173,790	$ 350	$ 538,610	$ (404,750)	$ 39,580
Net income attributable to TriMas Corporation	12,490			12,490
Other comprehensive income	4,220				4,220
Shares surrendered upon vesting of options and restricted stock awards to cover tax obligations	(990)		(990)
Stock option exercises and restricted stock vesting	5,490		5,490
Excess tax benefits from stock based compensation	1,770		1,770
Non-cash compensation expense	1,410		1,410
Balances at Mar. 31, 2012	$ 198,180	$ 350	$ 546,290	$ (392,260)	$ 43,800

This element represents the amount of recognized equity-based compensation during the period, that is, the amount recognized as expense in the income statement (or as asset if compensation is capitalized). Alternate captions include the words "stock-based compensation".

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+ Details

- Definition

Tax benefit associated with any equity-based compensation plan other than an employee stock ownership plan (ESOP). The tax benefit results from the deduction by the entity on its tax return for an award of stock that exceeds the cumulative compensation cost for common stock or preferred stock recognized for financial reporting. Includes any resulting tax benefit that exceeds the previously recognized deferred tax asset (excess tax benefits).

+ References+ Details

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

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-Glossary Other Comprehensive Income

-URI http://asc.fasb.org/extlink&oid=6519514

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-Glossary Net Income

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+ Details

- Definition

This element represents Other Comprehensive Income or Loss, Net of Tax, for the period. Includes deferred gains or losses on qualifying hedges, unrealized holding gains or losses on available-for-sale securities, minimum pension liability, and cumulative translation adjustment. While for technical reasons this element has no balance attribute, the default assumption is a credit balance consistent with its label.

+ References

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+ Details

- Definition

Total of Stockholders' Equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity including portions attributable to both the parent and noncontrolling interests (previously referred to as minority interest), if any. The entity including portions attributable to the parent and noncontrolling interests is sometimes referred to as the economic entity. This excludes temporary equity and is sometimes called permanent equity.

+ References+ Details