Share-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2011

Schedule of Share-Based Compensation Expense [Table Text Block]


		2011		2010		2009
Cost of goods sold	$	394	$	350	$	373
Selling, general and administrative expense		12,266		11,347		9,203
Research and development expense		1,043		1,354		1,360

Total share-based compensation expense	$	13,703	$	13,051	$	10,936

Schedule Of Share Based Payment Award Stock Options Valuation Assumptions [Table Text Block]

	2011	2010	2009

Expected volatility	52.53%	57.99%	57.92%
Expected term (years)	7.5	7.3	7.5
Risk free interest rate	2.37%	2.60%	3.20%
Forfeiture rate	0.47%	0.88%	2.50%
Dividend yield	N/A	N/A	N/A

Schedule Of Share Based Compensation Stock Options Activity [Table Text Block]

Stock Options	Shares		Weighted Average Exercise Price	Weighted Average Remaining Contractual Term (years)		Aggregate Intrinsic Value
Outstanding at January 1, 2009	3,895	$	11.61	5.4	$	2,327
Granted	492		15.15
Exercised	(324)		4.91			4,328
Forfeited or expired	(83)		15.89
Outstanding at January 1, 2009	3,980		12.50	5.2		34,989
Exercisable at December 31, 2009	3,161		10.59	4.2		32,558

Outstanding at January 1, 2010	3,980		12.50
Granted	405		18.98
Exercised	(669)		7.16			9,712
Forfeited or expired	(9)		27.39
Outstanding at December 31, 2010	3,707		14.14	5.2		47,891
Exercisable at December 31, 2010	2,785		12.53	4.1		40,420

Outstanding at January 1, 2011	3,707		14.14
Granted	385		29.07
Exercised	(496)		7.17			11,120
Forfeited or expired	(9)		20.80
Outstanding at December 31, 2011	3,587		16.69	5.1		22,299
Exercisable at December 31, 2011	2,622		14.51	3.9		20,201

Schedule of Share Based Compensation by Plan [Table Text Block]

The following table summarizes information about stock options outstanding at December 31, 2011

Plan		Range of exercise prices	Number outstanding	Weighted average remaining contractual life (years)		Weighted average exercise price
1993 ISO	$	2.53	10	0.5	$	2.53
2001 Plan		2.52-29.21	3,577	5.1		16.72
Plan Totals	$	2.52-29.21	3,587	5.1	$	16.69

The following summarizes information about stock options exercisable at December 31, 2011:

Plan		Range of exercise prices	Number exercisable	Weighted average remaining contractual life (years)		Weighted average exercise price
1993 ISO	$	2.53	10	0.5	$	2.53
2001 Plan		2.53-28.45	2,612	3.9		14.56
Total	$	2.53-28.45	2,622	3.9	$	14.51

Schedule Of Nonvested Restricted Stock Units Activity [Table Text Block]

Restricted Stock Grants	Shares		Weighted Average Grant Date Fair Value		Aggregate Intrinsic Value

Nonvested at January 1, 2009	846	$	21.41
Granted	387		15.86
Vested	(445)		17.53
Forfeited	(74)		23.16
Nonvested at December 31, 2009	714	$	20.64	$	14,579

Nonvested at January 1, 2010	714	$	20.64
Granted	377		17.46
Vested	(365)		21.26
Forfeited	(52)		20.17
Nonvested at December 31, 2010	674	$	18.56	$	12,479

Nonvested at January 1, 2011	674	$	18.56
Granted	370		27.46
Vested	(374)		20.03	$	7,487
Forfeited	(47)		19.69
Nonvested at December 31, 2011	623	$	22.91	$	14,279

- Definition

Tabular disclosure of components of a stock option or other award plan under which equity-based compensation is awarded to employees, typically comprised of the amount of unearned compensation (deferred compensation cost), compensation expense, and changes in the quantity and fair value of the shares (or other type of equity) granted, exercised, forfeited, and issued and outstanding pertaining to that plan. Disclosure may also include nature and general terms of such arrangements that existed during the period and potential effects of those arrangements on shareholders, effect of compensation cost arising from equity-based payment arrangements on the income statement, method of estimating the fair value of the goods or services received, or the fair value of the equity instruments granted, during the period, cash flow effects resulting from equity-based payment arrangements and, for registrants that accelerate vesting of out of the money share options, reasons for the decision to accelerate.

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