Leases (Narrative) (Details) - USD ($) $ in Millions	10 Months Ended	12 Months Ended
	Jun. 30, 2025	Aug. 31, 2024	Aug. 31, 2023	Aug. 31, 2022
Lessee, Lease, Description [Line Items]
Lease expense associated with operating leases		$ 1.1	$ 1.2	$ 1.5
Right-of-use operating lease assets obtained in exchange for operating lease liabilities		1.1
Sublease revenue		$ 1.9	$ 2.4	$ 3.9
Scenario, Forecast [Member]
Lessee, Lease, Description [Line Items]
Sublease revenue	$ 1.5
Minimum [Member]
Lessee, Lease, Description [Line Items]
Remaining operating lease term		1 year
Maximum [Member]
Lessee, Lease, Description [Line Items]
Remaining operating lease term		4 years
Corporate Campus [Member]
Lessee, Lease, Description [Line Items]
Cost basis		$ 36.6
Carrying value		$ 2.0