Share-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2017

Share Based Compensation [Abstract]

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, 2017, 2016 and 2015:

	2017		2016		2015
Cost of goods sold	$	645	$	775	$	716
Selling, general and administrative expense		15,130		10,567		16,228
Research and development expense		2,834		2,687		2,026
Total share-based compensation expense	$	18,609	$	14,029	$	18,970

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, 2017, 2016 and 2015:

	2017		2016		2015
Stock options	$	934	$	1,511	$	2,516
Share grants		17,675		12,518		16,454
Total share-based compensation expense	$	18,609	$	14,029	$	18,970

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, 2014		2,736			21.26
Granted		-			-
Exercised		(653	)		15.63
Forfeited or expired		(20	)		22.91
Outstanding at December 31, 2015		2,063			23.03
Granted		-			-
Exercised		(7	)		18.48
Forfeited or expired		(223	)		22.75
Outstanding at December 31, 2016		1,833			23.08
Granted		-			-
Exercised		(581	)		23.42
Forfeited or expired		(24	)		26.87
Outstanding at December 31, 2017		1,228			22.85		3.1	$	7,298
Exercisable at December 31, 2017		1,186			22.67		3.1	$	7,266

Schedule of Stock Options Outstanding

The table below sets forth information about stock options outstanding at December 31, 2017:

Plan	Range of exercise prices		Number outstanding		Weighted average remaining contractual life (years)		Weighted average exercise price
2001 Plan	$	15.05-29.21		917		2.9	$	21.90
2013 Plan	$	23.35-27.92		311		3.9	$	25.29

Schedule of Nonvested Restricted Stock Units Activity

The table below sets forth a summary of our non-vested share grants in 2017, 2016 and 2015:

Restricted Stock Grants	Shares			Weighted Average Grant Date Fair Value ($)		Aggregate Intrinsic Value
Nonvested at December 31, 2014		1,535			23.32
Granted		1,557			22.46
Vested		(370	)		25.02
Forfeited		(43	)		26.08
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	$	65,357