3.24.1 html 20 26 1 false 9 0 false 1 false false R1.htm 995100 - Document - Cover Sheet http://xbrl.sec.gov/dei/role/document/Cover Cover Cover 1 false false R2.htm 995410 - Disclosure - Pay vs Performance Disclosure Sheet http://xbrl.sec.gov/ecd/role/PvpDisclosure Pay vs Performance Disclosure Notes 2 false false All Reports Book All Reports apei-20240517.xsd apei-20240517_def.xml apei-20240517_lab.xml apei-20240517_pre.xml ny20018690x2_def14a.htm logo_apeiv2.jpg logo_apeiv3.jpg ny20007427x2_afabrega.jpg ny20007427x2_angelaselden.jpg ny20007427x2_arrow.jpg ny20007427x2_danielpianko.jpg ny20007427x2_gblevins1.jpg ny20007427x2_jkenis.jpg ny20007427x2_mbraner.jpg ny20007427x2_willrobinson.jpg ny20018690x2_apei.jpg ny20018690x2_bcovx1.jpg ny20018690x2_boxes1x2.jpg ny20018690x2_boxesx1.jpg ny20018690x2_ceotarget.jpg ny20018690x2_ericandersen.jpg ny20018690x2_fcov.jpg ny20018690x2_pc-1.jpg ny20018690x2_pc-2.jpg ny20018690x2_piechart03x2.jpg ny20018690x2_piechart04x2.jpg ny20018690x2_piechart05x1.jpg ny20018690x2_piecharts0x1.jpg ny20018690x2_pvpchart1.jpg ny20018690x2_pvpchart2.jpg ny20018690x2_pvpchart3.jpg sig_eandersen.jpg sig_tbeckett.jpg http://fasb.org/us-gaap/2023 http://xbrl.sec.gov/dei/2023 http://xbrl.sec.gov/ecd/2023 true false