Quarterly Financial Data - Schedule of Quarterly Financial Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 30, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]
Net sales	$ 310,281	$ 352,014	$ 352,499	$ 357,693	$ 378,823	$ 347,612	$ 388,944	$ 386,448	$ 1,372,487	$ 1,501,827	$ 1,108,055
Gross profit	26,898	16,047	39,995	33,122	36,304	23,673	53,559	49,991	116,062	163,527	102,897
Income (loss) from operations	(92,486)	(243)	24,031	18,639	19,213	7,688	31,270	27,634	(50,059)	85,805	21,518
Consolidated income (loss) before income taxes	(103,325)	(11,416)	14,811	6,893	13,349	(7,714)	12,930	13,687	(93,037)	32,252	866
Income tax (provision) benefit	4,276	4,785	(7,541)	(4,943)	(5,177)	7,051	(4,795)	(3,370)	(3,423)	(6,291)	(6,875)
Consolidated net income (loss)	$ (99,049)	$ (6,631)	$ 7,270	$ 1,950	$ 8,172	$ (663)	$ 8,135	$ 10,317	(96,460)	25,961	(6,009)
Less: Net loss (income) attributable to non-controlling interest											(194)
Net income (loss) attributable to Superior									$ (96,460)	$ 25,961	$ (6,203)
Basic earnings (loss) per share	$ (4.25)	$ (0.57)	$ (0.04)	$ (0.24)	$ 0.61	$ (0.37)	$ (0.02)	$ 0.07	$ (5.10)	$ 0.29	$ (1.01)
Diluted earnings (loss) per share	$ (4.25)	$ (0.57)	(0.04)	(0.24)	0.61	(0.37)	(0.02)	0.07	(5.10)	0.29	(1.01)
Dividends declared per share			$ 0.09	$ 0.09	$ 0.09	$ 0.09	$ 0.09	$ 0.09	$ 0.18	$ 0.36	$ 0.45