Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		May 31, 2024	May 31, 2023	May 31, 2024	May 31, 2023
Statement of Comprehensive Income [Abstract]
Net earnings		$ 40.6	$ 26.7	$ 107.4	$ 46.2
Other comprehensive income (loss)
Translation adjustment		(1.3)	6.0	(3.1)	16.9
Reclassification of derivative financial instruments recognized in net earnings	[1]	(4.2)	(2.7)	(11.7)	(4.8)
Unrealized gain (loss) on derivative financial instruments	[2]	6.4	(5.2)	13.5	9.8
Other (net of tax effect)				0.6	0.1
Other comprehensive income		0.9	(1.9)	(0.7)	22.0
Comprehensive income		41.5	24.8	106.7	68.2
Comprehensive income attributable to noncontrolling interest		(6.7)	(5.4)	(8.9)	(8.5)
Comprehensive income attributable to Greenbrier		$ 34.8	$ 19.4	$ 97.8	$ 59.7

[1] Net of tax effect of $1.2 million and $1.2 million for the three months ended May 31, 2024 and May 31, 2023, respectively, and $3.1 million and $2.2 million for the nine months ended May 31, 2024 and May 31, 2023, respectively.

[2] Net of tax effect of $(1.7 million) and $(1.2 million) for the three months ended May 31, 2024 and May 31, 2023, respectively, and $(3.5 million) and $(8.0 million) for the nine months ended May 31, 2024 and May 31, 2023, respectively.