CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Revenue:
Total revenue	$ 133,001	$ 146,116
Cost of sales:
Total cost of sales	79,206	81,876
Gross profit	53,795	64,240
Operating expenses:
Selling, general and administrative	55,415	49,600
Research and development	21,612	16,599
Total operating expenses	77,027	66,199
Loss from operations	(23,232)	(1,959)
Interest and other (expense) income , net	(2,283)	38,853
(Loss) income before income taxes	(25,515)	36,894
(Provision) benefit for income taxes	(1,284)	8,334
Net (loss) income	$ (26,799)	$ 45,228
Net (loss) income per common share:
Basic (in dollars per share)	$ (0.21)	$ 0.37
Diluted (in dollars per share)	$ (0.21)	$ 0.36
Weighted average shares outstanding:
Basic (in shares)	126,728	121,705
Diluted (in shares)	126,728	125,070
Products
Revenue:
Total revenue	$ 100,551	$ 93,648
Cost of sales:
Total cost of sales	58,472	53,364
Services
Revenue:
Total revenue	32,450	52,468
Cost of sales:
Total cost of sales	$ 20,734	$ 28,512