Consolidated Statement Of Income and Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Income Statement [Abstract]
Net sales	$ 930,928	$ 828,293
Cost of goods sold	525,119	465,210
Gross profit	405,809	363,083
Research and development expenses	78,476	72,126
Selling and administrative expenses	142,644	143,704
Amortization of acquisition-related intangibles	9,185	7,066
Restructuring and other charges, net	717	10,143
Gain on sales of fixed assets	(69)	(21)
Operating profit	174,856	130,065
Interest expense	16,595	12,807
Other (income), net	(576)	(21,229)
Income before taxes	158,837	138,487
Taxes on income	29,421	22,723
Net income	129,416	115,764
Other comprehensive income, after tax:
Foreign currency translation adjustments	14,803	(3,257)
(Losses) on derivatives qualifying as hedges	(529)	(1,751)
Pension and postretirement net liability	2,629	3,635
Net current period other comprehensive income (loss)	16,903	(1,373)
Total comprehensive income	$ 146,319	$ 114,391
Net income per share - basic, in dollars per share	$ 1.63	$ 1.46
Net income per share - diluted, in dollars per share	$ 1.63	$ 1.45
Average number of shares outstanding - basic	79,018	79,098
Average number of shares outstanding - diluted	79,393	79,409
Dividends declared per share, in dollars per share	$ 0.69	$ 0.64