CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (UNAUDITED) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Income Statement [Abstract]
Total revenue, net	$ 376,638	$ 360,071
Costs and expenses:
Cost of goods sold	142,569	145,823
Research and development	24,085	22,374
Selling, general and administrative	159,926	156,633
Intangible asset amortization	3,894	4,527
Total costs and expenses	330,474	329,357
Operating income	46,164	30,714
Interest income	1,377	1,748
Interest expense	(11,655)	(12,929)
Gain from the sale of business	0	42,876
Other income, net	3,429	4,869
Income before income taxes	39,315	67,278
Provision for income taxes	6,414	21,884
Net income	$ 32,901	$ 45,394
Net income per share
Basic (in dollars per share)	$ 0.39	$ 0.54
Diluted (in dollars per share)	$ 0.39	$ 0.53
Weighted average common shares outstanding (See Note 13):
Basic (in shares)	83,632	84,500
Diluted (in shares)	84,276	85,258
Comprehensive income (See Note 14)	$ 57,031	$ 75,826