Goodwill and Intangible Assets (Schedule of Intangible Assets) (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Jun. 30, 2024
Intangible Assets [Line Items]
Amortizable Intangible Assets, Gross Carrying Amount	$ 56,091	$ 56,091
Amortizable Intangible Assets, Accumulated Amortization	(43,477)	(32,257)
Curriculum
Intangible Assets [Line Items]
Amortizable Intangible Assets, Gross Carrying Amount	56,091	56,091
Amortizable Intangible Assets, Accumulated Amortization	$ (43,477)	$ (32,257)
Amortizable Intangible Assets, Weighted Average Amortization Period	5 years