Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Nov. 30, 2023	Nov. 30, 2022
Income Statement [Abstract]
Revenues	$ 672,897	$ 598,730
Operating expense:
Cost of goods sold	633,420	550,011
Selling, general and administrative	63,102	64,228
(Income) from joint ventures	(673)	(790)
Restructuring charges and other exit-related activities	35	1,592
Operating loss	(22,987)	(16,311)
Interest expense	(4,810)	(3,324)
Other loss, net	(170)	(3,884)
Loss from continuing operations before income taxes	(27,967)	(23,519)
Income tax benefit	10,170	6,032
Loss from continuing operations	(17,797)	(17,487)
Loss from discontinued operations, net of tax	(2)	(69)
Net loss	(17,799)	(17,556)
Net income attributable to noncontrolling interests	(165)	(232)
Net loss attributable to Radius shareholders	$ (17,964)	$ (17,788)
Net loss per share attributable to Radius shareholders Basic:
Loss per share from continuing operations	$ (0.64)	$ (0.64)
Net loss per share	(0.64)	(0.64)
Net income per share attributable to SSI shareholders Diluted:
Loss per share from continuing operations	(0.64)	(0.64)
Net loss per share	$ (0.64)	$ (0.64)
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Basic	28,219	27,723
Diluted	28,219	27,723