Share-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2020

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:

	2020		2019		2018
Cost of goods sold	$	1,064	$	925	$	362
Selling, general and administrative expense		21,013		16,687		17,395
Research and development expense		3,183		2,923		2,979
Total share-based compensation expense	$	25,260	$	20,535	$	20,736

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:

	2020		2019		2018
Stock options	$	-	$	-	$	274
Share grants		25,260		20,535		20,462
Total share-based compensation expense	$	25,260	$	20,535	$	20,736

Schedule of Share Based Compensation Stock Options Activity

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

Stock Options	Shares			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (years)		Aggregate Intrinsic Value
Outstanding at December 31, 2017		1,228			22.85
Exercised		(240	)		20.28
Outstanding at December 31, 2018		988			23.47			$	8,693
Exercised		(524	)		22.68			$	10,600
Outstanding and Exercisable  at December 31, 2019		464			24.37			$	14,849
Exercised		(272	)		25.11			$	8,278
Outstanding and Exercisable  at December 31, 2020		192			23.32		1.4	$	9,059

Schedule of Stock Options Outstanding

The table below sets forth information about stock options outstanding at December 31, 2020:

Plan	Range of Exercise Prices	Number Exercisable		Weighted Average Remaining Contractual Life (Years)		Weighted Average Exercise Price
2001 Plan	18.48 - 19.27		102		1.4	$	19.25
2013 Plan	27.92		90		1.4	27.92

Summary of Nonvested Share Grants

The table below sets forth a summary of our non-vested share grants in 2020, 2019 and 2018:

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
Granted	670		38.15
Vested	(573	)	24.90
Forfeited	(67	)	30.44
Nonvested at December 31, 2019	1,697		31.71
Granted	573		48.83
Vested	(770	)	27.78	$	37,620
Forfeited and other	88		38.31
Nonvested at December 31, 2020	1,588		39.30	$	111,947