CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Statement [Abstract]
Revenue	$ 466,414	$ 471,248	$ 1,399,352	$ 1,397,982
Cost of Goods and Services Sold	237,500	241,501	698,870	700,966
Gross profit	228,914	229,747	700,482	697,016
Operating expenses:
Research and development	47,848	49,800	157,707	150,437
Selling, general and administrative	94,196	103,393	299,114	321,596
Restructuring expenses	293	2,166	28,779	5,776
Total operating expenses	142,337	155,359	485,600	477,809
Earnings from operations	86,577	74,388	214,882	219,207
Interest expense	7,273	7,582	21,196	20,370
Interest income	(55)	(612)	(531)	(2,107)
Loss on debt extinguishment	9,126	0	9,126	0
Other (income) expense, net	(9,688)	292	78	938
Earnings before income taxes	79,921	67,126	185,013	200,006
Income tax provision	19,258	5,079	47,669	30,093
Net earnings	$ 60,663	$ 62,047	$ 137,344	$ 169,913
Net earnings per share:
Basic earnings per share (in dollars per share)	$ 0.46	$ 0.46	$ 1.04	$ 1.26
Diluted earnings per share (in dollars per share)	$ 0.46	$ 0.46	$ 1.03	$ 1.24
Weighted Average Number of Shares Outstanding, Basic	131,125	134,741	131,848	135,264
Weighted Average Number of Shares Outstanding, Diluted	131,683	136,050	132,841	136,826