CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Statement [Abstract]
Net sales	$ 115,456	$ 146,488	$ 283,554	$ 332,034
Cost of sales	77,023	92,143	240,751	216,108
Gross profit	38,433	54,345	42,803	115,926
Operating expenses:
Advertising and marketing	3,218	4,129	10,063	13,228
Selling, general, and administrative	23,849	33,967	80,185	100,036
Transaction costs	72	547	468	1,168
Impairment of goodwill	0	0	18,649	0
Loss on disposal of intangible assets and equipment	0	96	3,683	102
Amortization of intangible assets	3,357	3,948	10,258	13,013
Total operating expenses	30,496	42,687	123,306	127,547
Income (loss) from operations	7,937	11,658	(80,503)	(11,621)
Other income (expense):
Interest expense	(885)	(1,221)	(3,375)	(3,334)
Other income (expense)	867	(462)	1,086	214
Total other expense	(18)	(1,683)	(2,289)	(3,120)
Income (loss) before provision for income taxes	7,919	9,975	(82,792)	(14,741)
Income tax (provision) benefit	(1,700)	(1,293)	10,123	3,663
Net income (loss)	$ 6,219	$ 8,682	$ (72,669)	$ (11,078)
Earnings (loss) per share attributable to stockholders:
Basic earnings (loss) per share (in usd per share)	$ 0.21	$ 0.30	$ (2.44)	$ (0.38)
Diluted earnings (loss) per share (in usd per share)	$ 0.21	$ 0.30	$ (2.44)	$ (0.38)