CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS (UNAUDITED) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Net Sales
Net sales	$ 601,231	$ 578,314
Total net sales	601,231	578,314
Cost of sales
Total cost of sales	400,652	381,441
Gross profit	200,579	196,873
Research and development expenses	18,307	17,241
Selling expenses	31,588	31,477
General and administrative expenses	76,658	76,110
Restructuring expenses	1,580	0
Operating income	72,446	72,045
Interest expense	(7,489)	(7,272)
Other income, net	5,532	5,478
Earnings from continuing operations before income taxes	70,489	70,251
Provision for income taxes	(18,728)	(14,658)
Net earnings	$ 51,761	$ 55,593
Basic earnings per share
Basic earnings per share (usd per share)	$ 1.22	$ 1.30
Diluted earnings per share
Diluted earnings per share (usd per share)	1.21	1.29
Dividends per share	$ 0.17	$ 0.15
Weighted average shares outstanding:
Basic (shares)	42,456	42,799
Diluted (shares)	42,770	43,058
Product [Member]
Product sales	$ 497,929	$ 471,599
Cost of sales
Cost of Goods and Services Sold	330,813	311,956
Service [Member]
Net Sales
Net sales	103,302	106,715
Cost of sales
Cost of Goods and Services Sold	$ 69,839	$ 69,485