CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Income Statement [Abstract]
Revenue	$ 467,313	$ 450,923
Cost of Goods and Services Sold	258,115	231,555
Gross profit	209,198	219,368
Operating expenses:
Research and development	52,246	53,847
Selling, general and administrative	103,868	116,242
Restructuring expenses	622	20,784
Total operating expenses	156,736	190,873
Earnings from operations	52,462	28,495
Interest expense	6,115	6,961
Interest income	(41)	(349)
Other income (loss), net	(3,622)	(1,315)
Earnings before income taxes	50,010	23,198
Income tax provision	11,203	7,774
Net earnings	$ 38,807	$ 15,424
Net earnings per share:
Basic earnings per share (in dollars per share)	$ 0.30	$ 0.12
Diluted earnings per share (in dollars per share)	$ 0.29	$ 0.11
Weighted Average Number of Shares Outstanding, Basic	131,183	133,596
Weighted Average Number of Shares Outstanding, Diluted	132,596	134,927