STOCKHOLDERS' EQUITY (Tables)

12 Months Ended

Dec. 31, 2018

Stockholders' Equity Note [Abstract]

Schedule of Compensation Cost on Net Earnings

The Company’s results for the years ended December 31, 2018, 2017 and 2016 reflected the following compensation cost and such compensation cost had the following effects on net earnings:

	Increase/(Decrease) for the Years Ended December 31,
	2018			2017			2016
Cost of sales	$	973		$	524		$	1,040
Operating expenses	5,440			5,736			5,984
Net earnings	(4,965		)	(3,990		)	(4,473		)

Schedule of Assumptions Used in the Valuation of Option Awards

Risk-free interest rates are based on the implied yields currently available on U.S. Treasury zero coupon issues with a remaining term equal to the expected life.

	Year Ended December 31,
Weighted Average Assumptions:	2018		2017		2016
Expected Volatility	26.8	%	30.1	%	34.4	%
Expected Term (in years)	4.4		4.6		5.0
Risk-Free Interest Rate	2.6	%	1.8	%	1.2	%
Dividend Yield	0.6	%	0.5	%	0.5	%

Summary of Stock Option Activity

A summary of stock option plan activity for 2018, 2017, and 2016 for all plans is as follows:

2018	# of Shares (000s)		Weighted Average Exercise Price
Outstanding at beginning of year	946		$	55.44
Granted	148		74.57
Exercised	(198	)	41.71
Forfeited	(6	)	74.90
Cancelled	(3	)	48.54
Outstanding at end of year	887		$	61.59
Exercisable at end of year	490		$	50.50

2017	# of Shares (000s)		Weighted Average Exercise Price
Outstanding at beginning of year	1,066		$	45.32
Granted	222		85.22
Exercised	(268	)	36.36
Forfeited	(52	)	72.29
Cancelled	(22	)	57.48
Outstanding at end of year	946		$	55.44
Exercisable at end of year	493		$	41.01

2016	# of Shares (000s)		Weighted Average Exercise Price
Outstanding at beginning of year	1,017		$	37.29
Granted	341		60.92
Exercised	(236	)	30.44
Forfeited	(56	)	58.23
Outstanding at end of year	1,066		$	45.32
Exercisable at end of year	604		$	34.77

Schedule of Other Information Pertaining to Stock Option Activity

Other information pertaining to option activity during the years ended December 31, 2018, 2017 and 2016 is as follows:

	Years Ended December 31,
	2018		2017		2016
Weighted-average fair value of options granted	$	18.62	$	23.20	$	18.48
Total intrinsic value of stock options exercised ($000s)	$	10,456	$	11,900	$	8,609

Schedule of Additional Information Relating to Stock Options Outstanding

Additional information related to stock options outstanding under all plans at December 31, 2018 is as follows:

		Options Outstanding			Options Exercisable
Range of Exercise Prices	Shares Outstanding (000s)	Weighted Average Remaining Contractual  Term	Weighted Average  Exercise Price		Number Exercisable (000s)	Weighted Average Exercise Price
$13.61 - $34.81	134	2.0 years	$	28.03	134	$	28.03
$38.10 - $59.95	195	5.2 years	52.51		191	52.39
$60.01 - $85.40	558	7.7 years	72.82		165	66.61
	887	6.3 years	$	61.59	490	$	50.50

Schedule of Non-vested Restricted Stock Activity

Non-vested restricted stock activity for the years ended December 31, 2018, 2017 and 2016 is summarized below:

	Shares (000s)		Weighted Average Grant Date Fair Value
Non-vested balance as of December 31, 2017	66		$	65.66
Granted	42		77.50
Vested	(27	)	62.74
Forfeited	(2	)	74.57
Non-vested balance as of December 31, 2018	79		$	72.75

	Shares (000s)		Weighted Average Grant Date Fair Value
Non-vested balance as of December 31, 2016	102		$	54.18
Granted	21		83.43
Vested	(53	)	51.39
Forfeited	(4	)	55.45
Non-vested balance as of December 31, 2017	66		$	65.66

	Shares (000s)		Weighted Average Grant Date Fair  Value
Non-vested balance as of December 31, 2015	150		$	47.46
Granted	19		61.22
Vested	(66	)	40.96
Forfeited	(1	)	56.77
Non-vested balance as of December 31, 2016	102		$	54.18

Schedule of Non-vested Performance Share Activity

Non-vested performance share activity for the years ended December 31, 2018, 2017 and 2016 is summarized below:

	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	(3	)	72.55
Non-vested balance as of December 31, 2018	53		$	75.61

	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	(11	)	69.25
Non-vested balance as of December 31, 2017	39		$	72.62

	Shares (000s)		Weighted Average Grant Date Fair Value
Non-vested as of December 31, 2015	20		$	58.77
Granted	22		63.15
Vested	—		—
Forfeited	(8	)	60.88
Non-vested as of December 31, 2016	34		$	61.06