v3.3.1.900

Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2015

Stock-Based Compensation

Schedule of exercise prices for stock options outstanding and exercisable

		Options Outstanding							Options Exercisable
Price Range		Number Outstanding as of December 31, 2015		Weighted- Average Remaining Contractual Term (In Years)		Weighted- Average Exercise Price			Number Exercisable as of December 31, 2015		Weighted- Average Remaining Contractual Term (In Years)		Weighted- Average Exercise Price
$0.00 - $10.00		686		1		$	2.12		686		1		$	2.12
$10.01 - $15.00		84,329		3		$	14.83		84,329		3		$	14.83
$15.01 - $20.00		246,524		4		$	18.96		246,524		4		$	18.96
$20.01 - $25.00		496,947		4		$	20.29		480,947		4		$	20.25
$25.01 - $30.00		305,415		4		$	28.12		227,415		3		$	28.64
$30.01 - $35.00		403,001		7		$	34.04		349,001		6		$	34.02
$35.01 - $40.00		2,378,839		6		$	37.90		1,440,839		6		$	37.70
$40.01 and above		1,977,500		9		$	49.42		252,500		8		$	48.09
		5,893,241		7		$	38.38		3,082,241		5		$	32.61

Schedule of stock option activity

		For the Years Ended December 31,
		2015					2014					2013
		Options		Weighted- Average Exercise Price			Options		Weighted- Average Exercise Price			Options		Weighted- Average Exercise Price
Total options outstanding, beginning of period		6,669,614		$	34.02		6,271,058		$	30.43		7,908,300		$	27.21
Granted		929,000		$	51.59		1,161,000		$	47.84		1,190,000		$	38.75
Exercised		(894,071	)	$	27.78		(697,544	)	$	24.87		(2,494,893	)	$	24.65
Forfeited and cancelled		(811,302	)	$	29.45		(64,900	)	$	32.65		(332,349	)	$	27.01
Total options outstanding, end of period		5,893,241		$	38.38		6,669,614		$	34.02		6,271,058		$	30.43
Performance-based options outstanding, end of period (1)		—		$	—		623,100		$	25.27		629,300		$	25.27
Exercisable at end of period		3,082,241		$	32.61		3,013,114		$	29.66		2,712,891		$	28.69

(1) These stock options are included in the caption “Total options outstanding, end of period.”  See discussion of the 2005 LTIP below.

Schedule of restricted stock unit activity

		For the Years Ended December 31,
		2015					2014					2013
		Restricted Stock Units		Weighted- Average Grant Date Fair Value			Restricted Stock Units		Weighted- Average Grant Date Fair Value			Restricted Stock Units		Weighted- Average Grant Date Fair Value
Total restricted stock units outstanding, beginning of period		96,768		$	29.29		121,877		$	29.93		151,683		$	30.18
Granted		100,000		$	50.00		—		$	—		—		$	—
Vested		(83,992	)	$	45.72		(22,877	)	$	33.08		(22,876	)	$	33.08
Forfeited and cancelled		(55,448	)	$	27.01		(2,232	)	$	25.51		(6,930	)	$	24.88
Total restricted stock units outstanding, end of period		57,328		$	42.31		96,768		$	29.29		121,877		$	29.93
Restricted Performance Units outstanding, end of period		33,334		$	50.00		55,448		$	27.00		57,680		$	26.94

Schedule of allocated non-cash, stock-based compensation expense for all employees

		For the Years Ended December 31,
		2015			2014			2013
		(In thousands)
Research and development expenses		$	4,570		$	2,403		$	3,478
Selling, general and administrative expenses		17,269			12,280			14,875
Total stock-based compensation		$	21,839		$	14,683		$	18,353

Schedule of assumptions of Black-Scholes option valuation model

		For the Years Ended December 31,
Assumptions:		2015		2014		2013
Risk-free interest rate		1.38% - 1.80%		1.72% - 1.85%		0.99% - 1.54%
Volatility factor		27.16% - 27.85%		29.05% - 35.02%		37.54% - 42.23%
Expected term of options in years		5.3 - 5.4		5.2 - 5.3		5.4 - 5.5
Weighted-average grant-date fair value		$12.25 - $15.05		$13.79 - $17.21		$15.59 - $17.20

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