Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Feb. 29, 2024	Feb. 28, 2023	Feb. 29, 2024	Feb. 28, 2023
Income Statement [Abstract]
Revenues	$ 621,059	$ 755,953	$ 1,293,956	$ 1,354,683
Operating expense:
Cost of goods sold	580,996	682,937	1,214,416	1,232,948
Selling, general and administrative	62,160	63,957	125,262	128,185
(Income) from joint ventures	(30)	(311)	(703)	(1,101)
Asset impairment charges	1,476		1,476
Restructuring charges and other exit-related activities	3,175	828	3,210	2,420
Operating (loss) income	(26,718)	8,542	(49,705)	(7,769)
Interest expense	(5,803)	(4,908)	(10,613)	(8,232)
Other loss, net	(263)	(99)	(432)	(3,983)
(Loss) income from continuing operations before income taxes	(32,784)	3,535	(60,750)	(19,984)
Income tax (expense) benefit	(1,195)	513	8,975	6,545
(Loss) income from continuing operations	(33,979)	4,048	(51,775)	(13,439)
(Loss) income from discontinued operations, net of tax	(31)	224	(33)	155
Net (loss) income	(34,010)	4,272	(51,808)	(13,284)
Net loss (income) attributable to noncontrolling interests	31	81	(135)	(151)
Net (loss) income attributable to Radius shareholders	$ (33,979)	$ 4,353	$ (51,943)	$ (13,435)
Net (loss) income per share attributable to Radius shareholders Basic:
(Loss) income per share from continuing operations	$ (1.19)	$ 0.15	$ (1.83)	$ (0.49)
Net (loss) income per share	(1.19)	0.16	(1.83)	(0.48)
Net (loss) income per share attributable to Radius shareholders Diluted:
(Loss) income per share from continuing operations	(1.19)	0.14	(1.83)	(0.49)
Net (loss) income per share	$ (1.19)	$ 0.15	$ (1.83)	$ (0.48)
Weighted average number of common shares:
Basic	28,454	28,081	28,337	27,912
Diluted	28,454	28,617	28,337	27,912