Quarterly Financial Information (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 Financial Information Disclosure [Abstract]
Net Sales	$ 115,576	$ 118,365	$ 141,563	$ 121,907	$ 141,331	$ 144,848	$ 190,701	$ 139,548	$ 497,411	$ 616,428	$ 581,064
Gross profit	21,685	22,061	28,138	23,122	28,198	27,951	36,629	28,160	95,006	120,938	113,468
Net (loss) income from continuing operations	$ 2,280	$ 16,578	$ 6,970	$ (5)	$ 30,201	$ 3,754	$ 10,098	$ 3,921	$ 25,823	$ 47,974	$ (30,586)
Basic earnings (loss) per common share from continuing operations (usd per share)	$ 0.22	$ 1.57	$ 0.66	$ (0.00)	$ 2.90	$ 0.36	$ 0.97	$ 0.38	$ 2.45	$ 4.61	$ (2.95)
Diluted earnings (loss) per common share from continuing operations (usd per share)	$ 0.21	$ 1.56	$ 0.66	$ (0.00)	$ 2.83	$ 0.35	$ 0.96	$ 0.37	$ 2.42	$ 4.51	$ (2.95)
Net (loss) income	$ 2,095	$ 6,830	$ 523	$ (1,866)	$ 26,250	$ 3,064	$ 9,564	$ 3,690	$ 7,582	$ 42,568	$ (31,168)
Basic (loss) earnings per common share (usd per share)	$ 0.20	$ 0.65	$ 0.05	$ (0.18)	$ 2.52	$ 0.29	$ 0.92	$ 0.36	$ 0.72	$ 4.09	$ (3.01)
Diluted (loss) earnings per common share (usd per share)	$ 0.20	$ 0.64	$ 0.05	$ (0.18)	$ 2.46	$ 0.29	$ 0.90	$ 0.35	$ 0.71	$ 4.00	$ (3.01)