STOCKHOLDERS' EQUITY (Tables)

6 Months Ended

Jun. 30, 2019

Stockholders' Equity Note [Abstract]

Schedule of Compensation Cost on Net Earnings

The Company’s results for the three and six months ended June 30, 2019 and 2018 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,						Increase/(Decrease) for the Six Months Ended June 30,
	2019			2018			2019			2018
Cost of sales	$	288		$	242		$	576		$	487
Operating expenses	1,703			1,424			3,046			2,972
Net earnings	(1,533		)	(1,280		)	(2,791		)	(2,657		)

Schedule of Stock Option Activity

Option activity for the six months ended June 30, 2019 and 2018 is summarized below:

For the six months ended June 30, 2019	Shares (000s)		Weighted Average Exercise Price		Aggregate Intrinsic Value		Weighted Average Remaining Contractual Term
Outstanding as of December 31, 2018	887		$	61.59	$	16,192
Granted	187		84.29
Exercised	(33	)	55.88
Forfeited	(7	)	80.59
Canceled	(4	)	70.90
Outstanding as of June 30, 2019	1,030		$	65.74	$	35,242	6.5
Exercisable as of June 30, 2019	658		$	56.77	$	28,413	5.2

For the six months ended June 30, 2018	Shares (000s)		Weighted Average Exercise Price		Aggregate Intrinsic Value		Weighted Average Remaining Contractual Term
Outstanding as of December 31, 2017	946		$	55.44	$	24,714
Granted	148		74.57
Exercised	(152	)	43.32
Forfeited	(2	)	75.44
Canceled	(1	)	25.39
Outstanding as of June 30, 2018	939		$	60.42	$	35,409	6.6
Exercisable as of June 30, 2018	534		$	49.19	$	26,142	5.3

Schedule of Other Information Pertaining to Stock Option Activity

Other information pertaining to option activity during the three and six months ended June 30, 2019 and 2018 was as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
	2019		2018		2019		2018
Weighted-average fair value of options granted	$	19.18	$	—	$	18.27	$	18.62
Total intrinsic value of stock options exercised ($000s)	$	997	$	5,375	$	1,299	$	7,200

Schedule of Non-vested Restricted Stock Activity

Non-vested restricted stock activity for the six months ended June 30, 2019 and 2018 is summarized below:

Six Months ended June 30, 2019	Shares (000s)		Weighted Average Grant Date Fair Value
Non-vested balance as of December 31, 2018	79		$	72.75
Granted	67		84.44
Vested	(8	)	58.52
Forfeited	(1	)	76.73
Non-vested balance as of June 30, 2019	137		$	79.31

Six months ended June 30, 2018	Shares (000s)		Weighted Average Grant Date Fair Value
Non-vested balance as of December 31, 2017	66		$	65.66
Granted	37		75.19
Vested	(17	)	57.65
Forfeited	—		—
Non-vested balance as of June 30, 2018	86		$	71.40

Schedule of Non-vested Performance Share Activity

Non-vested performance share activity for the six months ended June 30, 2019 and 2018 is summarized below:

Six Months ended June 30, 2019	Shares (000s)		Weighted Average Grant Date Fair Value
Non-vested balance as of December 31, 2018	53		$	75.61
Granted	33		81.79
Vested	(9	)	65.64
Forfeited	(7	)	60.85
Non-vested balance as of June 30, 2019	70		$	81.26

Six months ended June 30, 2018	Shares (000s)		Weighted Average Grant Date Fair Value
Non-vested balance as of December 31, 2017	39		$	72.62
Granted	32		71.27
Vested	(15	)	58.78
Forfeited	—		—
Non-vested balance as of June 30, 2018	56		$	75.47