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Selected Quarterly Financial Data (Details) - USD ($)
$ in Thousands
 3 Months Ended
Dec. 31, 2021
Sep. 30, 2021
Jun. 30, 2021
Mar. 31, 2021
Dec. 31, 2020
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Quarterly Financial Information Disclosure [Abstract]                
Sales $ 220,986 $ 209,517 $ 211,129 $ 184,822 $ 192,524 $ 184,370 $ 186,260 $ 192,136
Gross profit 34,328 31,497 45,394 37,313 42,305 41,909 46,331 40,092
Income (loss) from continuing operations 21,358 6,229 20,728 9,618 6,475 (16,976) 14,332 (20,663)
Net income (loss) $ 21,352 $ 6,203 $ 21,236 $ 9,031 $ 895 $ (65,213) $ 11,196 $ (22,321)
Basic:                
Continuing operations $ 0.64 $ 0.19 $ 0.62 $ 0.29 $ 0.19 $ (0.51) $ 0.43 $ (0.62)
Discontinued operations 0 0 0.02 (0.02) (0.17) (1.44) (0.10) (0.05)
Basic 0.64 0.19 0.64 0.27 0.02 (1.95) 0.33 (0.67)
Diluted:                
Continuing operations (in usd per share) 0.63 0.19 0.61 0.29 0.19 (0.51) 0.43 (0.62)
Discontinued operations (in usd per share) 0 0 0.02 (0.02) (0.17) (1.44) (0.10) (0.05)
Net income (in usd per share) $ 0.63 $ 0.19 $ 0.63 $ 0.27 $ 0.02 $ (1.95) $ 0.33 $ (0.67)
Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, Net of Tax $ (6) $ (26) $ 508 $ (587) $ (5,580) $ (48,237) $ (3,136) $ (1,658)