STOCKHOLDERS' EQUITY (Tables)

6 Months Ended

Jun. 30, 2017

The Company’s results for the three and six months ended June 30, 2017 and 2016 reflected the following stock-based compensation cost, and such compensation cost had the following effects on net earnings:

	Increase/(Decrease) for the Three Months Ended June 30,
		2017			2016
Cost of sales	$	(167	)	$	260
Operating expenses		1,210			1,494
Net earnings		(663	)		(1,080	)

	Increase/(Decrease) for the Six Months Ended June 30,
		2017			2016
Cost of sales	$	144		$	520
Operating expenses		2,740			3,431
Net earnings		(1,830	)		(2,473	)

Summary of Stock Option Activity

Option activity for the six months ended June 30, 2017 and 2016 is summarized below:

For the six months ended June 30, 2017	Shares (000s)			Weighted Average Exercise Price		Aggregate Intrinsic Value		Weighted Average Remaining Contractual Term
Outstanding as of December 31, 2016		1,066		$	45.32	$	41,161
Granted		220			85.23
Exercised		(150	)		32.54
Forfeited		(39	)		70.57
Cancelled		(19	)		58.61
Outstanding as of June 30, 2017		1,078		$	54.10	$	27,001		6.6
Exercisable as of June 30, 2017		603		$	40.83	$	22,249		4.7

For the six months ended June 30, 2016	Shares (000s)			Weighted Average Exercise Price		Aggregate Intrinsic Value		Weighted Average Remaining Contractual Term
Outstanding as of December 31, 2015		1,017		$	37.29	$	23,927
Granted		338			60.78
Exercised		(86	)		34.93
Forfeited		-			-
Outstanding as of June 30, 2016		1,269		$	43.71	$	20,626		6.6
Exercisable as of June 30, 2016		742		$	33.03	$	19,769		4.9

Other Information Pertaining to Stock Option Activity

Other information pertaining to option activity during the three and six months ended June 30, 2017 and 2016 was as follows:

	Three Months Ended June 30,						Six Months Ended June 30,
	2017			2016			2017		2016
Weighted-average fair value of options granted		$	20.54		$	17.80	$	23.21	$	18.45
Total intrinsic value of stock options exercised ($000s)		$	2,375		$	1,242	$	7,596	$	2,257

Non-vested Restricted Stock Activity

Non-vested restricted stock activity for the six months ended June 30, 2017 and 2016 is summarized below:

Six months ended June 30, 2017	Shares (000s)			Weighted Average Grant Date Fair Value
Non-vested balance as of December 31, 2016		102		$	54.18
Granted		9			85.40
Vested		(41	)		50.07
Forfeited		(4	)		55.45
Non-vested balance as of June 30, 2017		66		$	61.05

Six months ended June 30, 2016	Shares (000s)			Weighted Average Grant Date Fair Value
Non-vested balance as of December 31, 2015		150		$	47.46
Granted		18			60.85
Vested		(52	)		42.36
Forfeited		-			-
Non-vested balance as of June 30, 2016		116		$	51.83

Non-vested Performance Share Activity

Non-vested performance share activity for the six months ended June 30, 2017 and 2016 is summarized below:

Six months ended June 30, 2017	Shares (000s)			Weighted Average Grant Date Fair Value
Non-vested balance as of December 31, 2016		34		$	61.06
Granted		16			93.85
Vested		-			-
Forfeited		(7	)		69.18
Non-vested balance as of June 30, 2017		43		$	72.26

Six months ended June 30, 2016	Shares (000s)			Weighted Average Grant Date Fair Value
Non-vested balance as of December 31, 2015		20		$	58.77
Granted		21			63.15
Vested		-			-
Forfeited		(4	)		60.87
Non-vested balance as of June 30, 2016		37		$	61.04