CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS (UNAUDITED) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Net Sales
Net sales	$ 550,047	$ 638,996	$ 1,151,278	$ 1,217,310
Total net sales	550,047	638,996	1,151,278	1,217,310
Cost of sales
Total cost of sales	364,021	408,952	764,673	790,393
Gross profit	186,026	230,044	386,605	426,917
Research and development expenses	18,269	18,900	36,576	36,141
Selling expenses	25,193	30,693	56,781	62,170
General and administrative expenses	76,606	74,766	153,264	150,876
Restructuring Charges	10,609	0	12,189	0
Operating income	55,349	105,685	127,795	177,730
Interest expense	(8,515)	(7,960)	(16,004)	(15,232)
Other income (expense), net	(4,105)	5,871	1,427	11,349
Earnings from continuing operations before income taxes	42,729	103,596	113,218	173,847
Provision for income taxes	(11,711)	(23,524)	(30,439)	(38,182)
Net earnings	$ 31,018	$ 80,072	$ 82,779	$ 135,665
Basic earnings per share
Basic earnings per share (usd per share)	$ 0.75	$ 1.87	$ 1.97	$ 3.17
Diluted earnings per share
Diluted earnings per share (usd per share)	0.74	1.86	1.95	3.15
Dividends per share	$ 0.17	$ 0.17	$ 0.34	$ 0.32
Weighted average shares outstanding:
Basic (shares)	41,629	42,758	42,092	42,776
Diluted (shares)	41,855	43,024	42,362	43,038
Product [Member]
Product sales	$ 466,445	$ 532,253	$ 964,374	$ 1,003,852
Cost of sales
Cost of Goods and Services Sold	309,152	342,726	639,965	654,682
Service [Member]
Net Sales
Net sales	83,602	106,743	186,904	213,458
Cost of sales
Cost of Goods and Services Sold	$ 54,869	$ 66,226	$ 124,708	$ 135,711