Summary of Significant Accounting Policies - Assets Held for Sale (Details)	9 Months Ended
Sep. 30, 2025
Accounting Policies [Abstract]
Period expected for sales to finalize (in months)	12 months

Disposal Group, Period Expected For Sales To Finalize

No definition available.

Name:	apei_DisposalGroupPeriodExpectedForSalesToFinalize
Namespace Prefix:	apei_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration