Share-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2016

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, 2016, 2015 and 2014:

	2016		2015		2014
Cost of goods sold	$	775	$	716	$	438
Selling, general and administrative expense		10,567		16,228		12,438
Research and development expense		2,687		2,026		1,228
Total share-based compensation expense	$	14,029	$	18,970	$	14,104

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, 2016, 2015 and 2014:

	2016		2015		2014
Stock options	$	1,511	$	2,516	$	3,259
Share grants		12,518		16,454		10,845
Total share-based compensation expense	$	14,029	$	18,970	$	14,104

Schedule of Share Based Payment Award Stock Options Valuation Assumptions

Share-based compensation expense for stock options granted during 2014 was calculated on the date of grant using the Black-Scholes-Merton option-pricing model with the following weighted-average assumptions:

	2014
Weighted-average grant date fair value (1)	$	15.68
Weighted-average assumptions used:		53.36	%
Expected volatility		7.2
Expected term (years)		2.08	%
Risk-free interest rate		0.00	%
Expected dividend yield
(1)  No stock options were granted in 2016 or 2015.

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 January 1, 2014		3,126		$	18.93
Granted		176			27.92
Exercised		(564	)		10.37
Forfeited or expired		(2	)		29.21
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		3.3	$	6,597
Exercisable at December 31, 2016		1,706			22.83		3.2	$	6,497

Schedule of Stock Options Outstanding

The table below sets forth information about stock options outstanding at December 31, 2016:

Plan	Range of exercise prices		Number outstanding		Weighted average remaining contractual life (years)		Weighted average exercise price
2001 Plan	$	15.05-28.45		1,492		3.0	$	22.50
2013 Plan	$	23.35-27.92		341		4.9	$	25.61

Schedule of Nonvested Restricted Stock Units Activity

The table below sets forth a summary of our non-vested share grants in 2016, 2015 and 2014:

Restricted Stock Grants	Shares			Weighted Average Grant Date Fair Value		Aggregate Intrinsic Value
Nonvested at January 1, 2014		1,131		$	22.35
Granted		788			25.08
Vested		(346	)		22.34
Forfeited		(38	)		24.98
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	$	61,247
Granted		880			18.63
Vested		(877	)		18.92	$	17,078
Forfeited		(62	)		20.80
Nonvested at December 31, 2016		2,620			21.31	$	67,247