Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2022	Dec. 31, 2020	Dec. 31, 2019
Income Statement [Abstract]
Net sales	$ 206,075	$ 589,534	$ 552,560	$ 309,285
Cost of sales	126,984	441,077	323,758	198,702
Gross profit	79,091	148,457	228,802	110,583
Operating expenses:
Selling and marketing	23,480	99,204	78,337	94,595
General and administrative	12,060	51,783	36,176	30,242
Research and development	3,843	22,786	15,812	14,282
Loss on disposal group, goodwill and other intangible impairment charge	0	0	20,668	72,008
Total operating expenses	39,383	173,773	150,993	211,127
Operating (loss) income	39,708	(25,316)	77,809	(100,544)
Other income (expense):
Interest income	45	35	11	162
Interest expense	(214)	(1,580)	(1,498)	(980)
Other, net	(1,363)	(1,369)	(3,587)	(470)
Total other expense, net	(1,532)	(2,914)	(5,074)	(1,288)
(Loss) income from continuing operations before income taxes	38,176	(28,230)	72,735	(101,832)
Income tax (benefit) expense	7,595	(6,026)	12,198	(9,537)
(Loss) income from continuing operations	30,581	(22,204)	60,537	(92,295)
Discontinued operations:
Loss from discontinued operations before income taxes	(82)	(198)	(162)	(206)
Income tax expense of discontinued operations	95	29	527	299
Loss from discontinued operations	(177)	(227)	(689)	(505)
Net (loss) income	$ 30,404	$ (22,431)	$ 59,848	$ (92,800)
Basic net (loss) income per share
Basic income per share from continuing operations (in dollars per share)	$ 1.01	$ (0.72)	$ 2.02	$ (3.11)
Basic income (loss) per share from discontinued operations (in dollars per share)	(0.01)	0	(0.03)	(0.02)
Basic net income per share (in dollars per share)	1.00	(0.72)	1.99	(3.13)
Diluted net (loss) income per share
Diluted income per share from continuing operations (in dollars per share)	0.94	(0.72)	1.88	(3.11)
Diluted income (loss) per share from discontinued operations (in dollars per share)	(0.01)	0	(0.02)	(0.02)
Diluted net income per share (in dollars per share)	$ 0.93	$ (0.72)	$ 1.86	$ (3.13)
Shares used in per share calculations:
Basic (in shares)	30,416	31,029	30,007	29,684
Diluted (in shares)	32,642	31,029	32,123	29,684