REVENUE RECOGNITION (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
REVENUE RECOGNITION [Abstract]
Unearned tuition	$ 26,906	$ 24,154
Revenue recognized included in contract liability	23,300
Disaggregation of Revenue [Abstract]
Revenue	378,070	348,287
Services Transferred at a Point in Time [Member]
Disaggregation of Revenue [Abstract]
Revenue	22,937	21,722
Services Transferred over Time [Member]
Disaggregation of Revenue [Abstract]
Revenue	355,133	326,565
Campus Operations [Member]
Disaggregation of Revenue [Abstract]
Revenue	376,602	341,440
Campus Operations [Member] | Services Transferred at a Point in Time [Member]
Disaggregation of Revenue [Abstract]
Revenue	22,914	21,434
Campus Operations [Member] | Services Transferred over Time [Member]
Disaggregation of Revenue [Abstract]
Revenue	353,688	320,006
Transitional [Member]
Disaggregation of Revenue [Abstract]
Revenue	1,468	6,847
Transitional [Member] | Services Transferred at a Point in Time [Member]
Disaggregation of Revenue [Abstract]
Revenue	23	288
Transitional [Member] | Services Transferred over Time [Member]
Disaggregation of Revenue [Abstract]
Revenue	$ 1,445	$ 6,559