CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Income Statement [Abstract]
Revenue	$ 450,923	$ 444,736
Cost of Goods and Services Sold	231,555	210,875
Gross profit	219,368	233,861
Operating expenses:
Research and development	53,847	47,680
Selling, general and administrative	116,242	104,490
Restructuring expenses	20,784	609
Total operating expenses	190,873	152,779
Earnings from operations	28,495	81,082
Interest expense	6,961	5,516
Interest income	(349)	(1,057)
Other (income) expense, net	(1,315)	1,866
Earnings before income taxes	23,198	74,757
Income tax provision	7,774	13,009
Net earnings	$ 15,424	$ 61,748
Net earnings per share:
Basic earnings per share (in dollars per share)	$ 0.12	$ 0.46
Diluted earnings per share (in dollars per share)	$ 0.11	$ 0.45
Weighted Average Number of Shares Outstanding, Basic	133,596	135,541
Weighted Average Number of Shares Outstanding, Diluted	134,927	137,165