Segment Information - Summary of Consolidated Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Assets:
Total Assets	$ 558,807	$ 615,056
Corporate and Other
Assets:
Total Assets	129,537	141,060
APUS Segment | Operating Segments
Assets:
Total Assets	124,429	113,551
RU Segment | Operating Segments
Assets:
Total Assets	241,543	300,625
HCN Segment | Operating Segments
Assets:
Total Assets	$ 63,298	$ 59,820