STOCK-BASED COMPENSATION (Tables)

12 Months Ended

Dec. 31, 2015

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Summary Of Employee Stock-Based Compensation Expense

Stock-based compensation expense - all related to employees - recognized under the authoritative guidance was as follows:

	Years Ended December 31,
	2015		2014		2013
	(In thousands)
Selling, general and administrative	$	14,461	$	13,940	$	9,484
Research and development	714		463		277
Cost of goods sold	275		151		81
Total stock-based compensation expense	15,450		14,554		9,842
Total estimated tax benefit related to stock-based compensation expense	5,792		5,350		3,806
Net effect on net income	$	9,658	$	9,204	$	6,036

Summary Of Weighted-Average Assumptions

The following weighted-average assumptions were used in the calculation of fair value:

	Years Ended December 31,
	2015	2014	2013
Dividend yield	0%	0%	0%
Expected volatility	29%	29%	31%
Risk free interest rate	1.96%	2.41%	1.52%
Expected life of option from grant date	8 years	8 years	8 years

Summary Of Stock Option Activity

The following table summarizes the Company’s stock option activity.

			Weighted Average Exercise Price		Weighted Average Contractual Term in Years	Aggregate Intrinsic Value
	Shares
Stock Options	(In thousands)					(In thousands)
Outstanding at December 31, 2014	1,238		$	39.89
Modification upon spin-off (1)	58		—
Granted	98		62.37
Exercised	(200	)	35.57
Forfeited or Expired	(1	)	53.73
Outstanding at December 31, 2015	1,193		$	37.09	3.26	$	36,614
Vested or expected to vest at December 31, 2015	1,193		$	37.09	3.26	$	36,614
Exercisable at December 31, 2015	1,037		$	35.02	2.69	$	33,980

Summary Of Vested And Unvested RSU

The following table summarizes the Company’s awards of restricted stock, performance stock and contract stock for the year ended December 31, 2015.

					Performance Stock and Contract Stock Awards
	Restricted Stock Awards
	Shares		Weighted Average Grant Date Fair Value Per Share		Shares		Weighted Average Grant Date Fair Value Per Share
	(In thousands)				(In thousands)
Unvested, December 31, 2014	308		$	37.29	283		$	32.74
Modification upon spin-off	42		—		2		—
Surrendered upon spin-off	(3	)	—		—		—
Granted	169		62.32		3		59.52
Cancellations	(56	)	47.79		(1	)	45.46
Released	(166	)	42.48		(121	)	36.51
Unvested, December 31, 2015	294		$	48.20	166		$	33.30