Nature of Business (Details)	3 Months Ended	9 Months Ended	12 Months Ended
	Dec. 31, 2021 segment	Sep. 30, 2021 segment	Dec. 31, 2021 campus state segment
Segment Reporting Information [Line Items]
Number of reportable segments | segment	3	2	3
RU Segment
Segment Reporting Information [Line Items]
Number of campuses			23
Number of states | state			6
HCN | Ohio
Segment Reporting Information [Line Items]
Number of campuses			6
HCN | Indiana
Segment Reporting Information [Line Items]
Number of campuses			1