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Share-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2018

Schedule of Share-Based Compensation Expense

The table below sets forth the line items where share-based compensation expense was recorded for the twelve months ended December 31, 2018, 2017 and 2016:

	2018		2017		2016
Cost of goods sold	$	362	$	645	$	775
Selling, general and administrative expense		17,395		15,130		10,567
Research and development expense		2,979		2,834		2,687
Total share-based compensation expense	$	20,736	$	18,609	$	14,029

Schedule of Share-Based Compensation Expense by Type

The table below sets forth share-based compensation expense by type for the twelve months ended December 31, 2018, 2017 and 2016:

	2018		2017		2016
Stock options	$	274	$	934	$	1,511
Share grants		20,462		17,675		12,518
Total share-based compensation expense	$	20,736	$	18,609	$	14,029

Schedule of Share Based Compensation Stock Options Activity

The table below sets forth a summary of activity in our stock option plans:

Stock Options	Shares			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (years)		Aggregate Intrinsic Value
Outstanding at December 31, 2015		2,063		$	23.03
Exercised		(7	)		18.48
Forfeited or expired		(223	)		22.75
Outstanding at December 31, 2016		1,833			23.08
Exercised		(581	)		23.42
Forfeited or expired		(24	)		26.87
Outstanding at December 31, 2017		1,228			22.85
Exercised		(240	)		20.28
Outstanding at December 31, 2018		988			23.47		2.4	$	8,693
Exercisable at December 31, 2018		988			23.47		2.4	$	8,693

Schedule of Stock Options Outstanding

The table below sets forth information about stock options outstanding at December 31, 2018:

Plan

Range of exercise

prices

Number

exercisable

Weighted average

remaining

contractual life

(years)

Weighted average

exercise price

2001 Plan

15.05-29.21

678

2.2

22.48

2013 Plan

23.35-27.92

310

2.9

25.63

Schedule of Nonvested Restricted Stock Units Activity

The table below sets forth a summary of our non-vested share grants in 2018, 2017 and 2016:

Restricted Stock Grants	Shares			Weighted Average Grant Date Fair Value ($)		Aggregate Intrinsic Value
Nonvested at December 31, 2015		2,679			23.51
Granted		880			18.63
Vested		(877	)		18.92
Forfeited		(62	)		20.80
Nonvested at December 31, 2016		2,620			21.31
Granted		746			25.23
Vested		(645	)		21.89
Forfeited		(441	)		22.31
Nonvested at December 31, 2017		2,280			22.24
Granted		646			32.06
Vested		(1,213	)		21.39
Forfeited		(46	)		24.72
Nonvested at December 31, 2018		1,667			26.68	$	53,396