Quarterly Results of Operations (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Quarterly Results of Operations (Unaudited)
Net sales	$ 258,004	$ 243,975	$ 218,371	$ 243,525	$ 257,922	$ 243,049	$ 255,532	$ 238,349	$ 963,875	$ 994,852	$ 882,753
Gross profit	111,163	102,014	84,216	103,784	111,630	104,136	111,964	104,636	401,177	432,366	394,770
Income (loss) from operations	16,007	64	(18,995)	1,362	(3,409)	(2,881)	12,201	9,523	(1,562)	15,434	58,617
Income tax (benefit) expense	(2,133)	825	(3,242)	1,162	(3,757)	(2,292)	2,140	651	(3,388)	(3,258)	7,502
Net income (loss)	$ 15,378	$ (3,009)	$ (19,058)	$ (3,154)	$ (4,205)	$ (3,398)	$ 6,859	$ 6,195	$ (9,843)	$ 5,451	$ 42,017
Basic (in dollars per share)	$ 0.28	$ (0.05)	$ (0.34)	$ (0.06)	$ (0.08)	$ (0.06)	$ 0.12	$ 0.11	$ (0.18)	$ 0.10	$ 0.80
Diluted (in dollars per share)	$ 0.27	$ (0.05)	$ (0.34)	$ (0.06)	$ (0.08)	$ (0.06)	$ 0.12	$ 0.11	$ (0.18)	$ 0.10	$ 0.78
Impairment charges									$ 36,504	$ 23,750	$ 657
NinePoint Medical, Inc.
Quarterly Results of Operations (Unaudited)
Impairment charges					$ 20,500					20,500
Write off of accrued interest					$ (1,600)					$ (1,600)
STD Pharmaceutical Products Limited
Quarterly Results of Operations (Unaudited)
Impairment charges	$ 8,200