Goodwill and Intangible Assets - Schedule of Changes in Carrying Amount of Goodwill by Reportable Segment (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2023	Dec. 31, 2022
Goodwill [Roll Forward]
Beginning balance	$ 112,593	$ 243,486
Goodwill acquired	0	0
Impairment	(53,000)	(131,400)
Adjustments	0	507
Ending balance	59,593	112,593
APUS Segment
Goodwill [Roll Forward]
Beginning balance	0	0
Goodwill acquired	0	0
Impairment	0	0
Adjustments	0	0
Ending balance	0	0
RU Segment
Goodwill [Roll Forward]
Beginning balance	86,030	216,923
Goodwill acquired	0	0
Impairment	(53,000)	(131,400)
Adjustments	0	507
Ending balance	33,030	86,030
HCN Segment
Goodwill [Roll Forward]
Beginning balance	26,563	26,563
Goodwill acquired	0	0
Impairment	0	0
Adjustments	0	0
Ending balance	$ 26,563	$ 26,563