Earnings Per Share - Schedule of Earnings Per share, Basic and Diluted (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ 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
Basic Earnings Per Share:
Reported net income (loss) attributable to Superior									$ (96,460)	$ 25,961	$ (6,203)
Less: Redeemable preferred stock dividends and accretion									(30,977)	(32,462)	(18,912)
Add: Preferred stock modification										15,257
Less: European non-controlling redeemable equity dividend									(566)	(1,512)
Basic numerator									$ (128,003)	$ 7,244	$ (25,115)
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)
Weighted average shares outstanding-Basic									25,099	24,994	24,929
Diluted Earnings Per Share:
Reported net income (loss) attributable to Superior									$ (96,460)	$ 25,961	$ (6,203)
Less: Redeemable preferred stock dividends and accretion									(30,977)	(32,462)	(18,912)
Add: Preferred stock modification										15,257
Less: European non-controlling redeemable equity dividend									(566)	(1,512)
Diluted numerator									$ (128,003)	$ 7,244	$ (25,115)
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)
Weighted average shares outstanding-Basic									25,099	24,994	24,929
Dilutive effect of common share equivalents										161
Weighted average shares outstanding-Diluted									25,099	25,155	24,929