Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Feb. 28, 2023	Feb. 28, 2022	Feb. 28, 2023	Feb. 28, 2022
Statement of Comprehensive Income [Abstract]
Net (loss) income	$ 4,272	$ 38,165	$ (13,284)	$ 85,441
Other comprehensive (loss) income, net of tax:
Foreign currency translation adjustments	(1,361)	722	(3,607)	(393)
Pension obligations, net	58	119	91	509
Total other comprehensive (loss) income, net of tax	(1,303)	841	(3,516)	116
Comprehensive income (loss)	2,969	39,006	(16,800)	85,557
Less comprehensive loss (income) attributable to noncontrolling interests	81	(550)	(151)	(1,627)
Comprehensive income (loss) attributable to SSI shareholders	$ 3,050	$ 38,456	$ (16,951)	$ 83,930