Summary of Significant Accounting Policies - Disaggregated Revenues (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Summary of Significant Accounting Policies
Total Revenues	$ 551,084	$ 480,181
General Education
Summary of Significant Accounting Policies
Percentage of revenues from funding-based contracts	95.00%	93.00%
Total Revenues	$ 329,407	$ 299,338
Career Learning
Summary of Significant Accounting Policies
Total Revenues	$ 221,677	$ 180,843
Middle - High School
Summary of Significant Accounting Policies
Percentage of revenues from funding-based contracts	100.00%	100.00%
Total Revenues	$ 198,885	$ 150,974
Adult
Summary of Significant Accounting Policies
Total Revenues	$ 22,792	$ 29,869