Property and Equipment - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Loss on disposal of long-lived assets	$ 1,176	$ 1,282	$ 851
Depreciation expense	16,200	12,700	13,000
APUS Segment
Property, Plant and Equipment [Line Items]
Loss on disposal of long-lived assets	400	500	400
Net sales price	$ 800	$ 700	$ 800