Stock Options, Other Stock Awards and Warrants (Tables)

12 Months Ended

Dec. 31, 2017

Stock Options, Other Stock Awards and Warrants [Abstract]

Schedule of Total Compensation Expense Related to Stock Options, Restricted Stock Units and Stock Performance Awards

	2017		2016		2015
Cost of sales	$	—		200		366
Product development		3,312		3,248		3,527
Selling, distribution and administration		52,720		58,176		49,987
		56,032		61,624		53,880
Income tax benefit		9,574		20,298		13,489
	$	46,458		41,326		40,391

	2017		2016		2015
Stock performance awards	$	27,522		34,248		27,960
Restricted stock units		20,573		19,908		19,052
Stock options		6,342		5,838		5,419
Non-employee awards		1,595		1,630		1,449
		56,032		61,624		53,880
Income tax benefit		9,574		20,298		13,489
	$	46,458		41,326		40,391

Schedule of Restricted Stock Awards and Restricted Stock Units

	Inputs
Grant date stock price	$47.28
Stock price volatility	26.12%
Risk-free interest rate	0.65%
Dividend yield	3.38%

		2017		2016		2015
Outstanding at beginning of year			795		955		937
	Granted		203		245		254
	Forfeited		(41)		(41)		(52)
	Vested		(321)		(364)		(184)
Outstanding at end of year			636		795		955
Weighted average grant-date fair value:
	Granted	$	98.88		75.23		62.95
	Forfeited	$	68.01		59.37		51.57
	Vested	$	57.58		43.89		39.87
Outstanding at end of year		$	75.13		61.65		51.22

Schedule of Stock Performance Awards

		2017		2016		2015
Outstanding at beginning of year			1,074		992		655
	Granted		428		529		362
	Forfeited		(28)		(23)		(25)
	Vested		(574)		(424)		—
Outstanding at end of year			900		1,074		992
Weighted average grant-date fair value:
	Granted	$	99.58		74.69		61.85
	Forfeited	$	74.86		61.86		53.45
	Vested	$	52.21		47.21		—
Outstanding at end of year		$	77.27		62.19		53.17

Schedule of Stock Option Information

		2017		2016		2015
Outstanding at beginning of year			2,768		3,445		4,186
	Granted		458		492		549
	Exercised		(597)		(1,143)		(1,280)
	Expired or forfeited		(50)		(26)		(10)
Outstanding at end of year			2,579		2,768		3,445
Exercisable at end of year			1,661		1,708		2,208
Weighted average exercise price:
	Granted	$	98.80		74.42		61.77
	Exercised	$	49.31		41.75		37.54
	Expired or forfeited	$	57.33		56.43		46.38
Outstanding at end of year		$	62.12		53.21		46.41
Exercisable at end of year		$	50.02		45.50		41.36

Schedule of weighted average assumptions used to determine the fair value of option grants

	2017	2016	2015
Risk-free interest rate	1.85%	1.16%	1.34%
Expected dividend yield	2.31%	2.74%	2.98%
Expected volatility	24%	26%	23%
Expected option life	5 years	5 years	5 years