CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Statement [Abstract]
Revenue	$ 1,923,689	$ 1,887,026	$ 1,775,686
Cost of Goods Sold	976,676	957,640	874,463
Gross profit	947,013	929,386	901,223
Operating expenses:
Research and development	(210,166)	(203,611)	(174,962)
Selling, general and administrative	(389,130)	(442,416)	(389,093)
Restructuring expenses	(30,475)	(10,099)	(4,854)
Loss on sale of Business	0	0	13,708
Total operating expenses	629,771	656,126	582,617
Earnings from operations	317,242	273,260	318,606
Interest expense	27,240	27,711	16,147
Interest income	(608)	(2,651)	(3,901)
Gain (Loss) on Extinguishment of Debt	9,126	0	0
Other (income) expense, net	(3,520)	6,284	(743)
Earnings before income taxes	285,004	241,916	307,103
Income tax provision	72,420	70,319	24,678
Net earnings	$ 212,584	$ 171,597	$ 282,425
Net earnings per share:
Basic earnings per share (in dollars per share)	$ 1.61	$ 1.27	$ 2.05
Diluted earnings per share (in dollars per share)	$ 1.60	$ 1.26	$ 2.01