PROPERTY PURCHASE AND SALE AGREEMENTS, Purchase Transaction - Philadelphia, Pennsylvania Area Campus (Details) - Purchase Transaction [Member] $ in Millions		9 Months Ended
	Sep. 28, 2023 USD ($) ft²	Sep. 30, 2023 USD ($) Student
Purchase Transaction Philadelphia, Pennsylvania Area Campus [Abstract]
Area of property purchased | ft²	90,000
Property purchase price | $	$ 10.2
Investment in buildout of new classrooms and training areas | $		$ 17.0
Leaseback agreement term		20 years
Number of automotive technology students served | Student		250
Projected number of students | Student		600
Minimum [Member]
Purchase Transaction Philadelphia, Pennsylvania Area Campus [Abstract]
Property served term		60 years