CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Income Statement [Abstract]
Revenue	$ 482,015	$ 481,998	$ 932,938	$ 926,734
Cost of Goods and Services Sold	229,815	248,590	461,370	459,465
Gross profit	252,200	233,408	471,568	467,269
Operating expenses:
Research and development	56,012	52,957	109,859	100,637
Selling, general and administrative	88,676	113,713	204,918	218,203
Restructuring expenses	7,702	3,001	28,486	3,610
Total operating expenses	152,390	169,671	343,263	322,450
Earnings from operations	99,810	63,737	128,305	144,819
Interest expense	6,962	7,272	13,923	12,788
Interest income	(127)	(438)	(476)	(1,495)
Other expense (income), net	11,081	(1,220)	9,766	646
Earnings before income taxes	81,894	58,123	105,092	132,880
Income tax provision	20,637	12,005	28,411	25,014
Net earnings	$ 61,257	$ 46,118	$ 76,681	$ 107,866
Net earnings per share:
Basic earnings per share (in dollars per share)	$ 0.47	$ 0.34	$ 0.58	$ 0.80
Diluted earnings per share (in dollars per share)	$ 0.47	$ 0.34	$ 0.57	$ 0.79
Weighted Average Number of Shares Outstanding, Basic	130,831	135,519	132,213	135,530
Weighted Average Number of Shares Outstanding, Diluted	131,687	137,084	133,389	137,105