REVENUE RECOGNITION (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
REVENUE RECOGNITION [Abstract]
Unearned tuition	$ 24,328		$ 24,328		$ 26,906
Revenue recognized included in contract liability			25,800
Disaggregation of Revenue [Abstract]
Total revenues	102,914	$ 88,646	206,281	$ 175,929
Services Transferred at a Point in Time [Member]
Disaggregation of Revenue [Abstract]
Total revenues	7,006	5,898	12,754	10,607
Services Transferred over Time [Member]
Disaggregation of Revenue [Abstract]
Total revenues	95,908	82,748	193,527	165,322
Campus Operations [Member]
Disaggregation of Revenue [Abstract]
Total revenues	102,914	88,213	206,281	174,565
Campus Operations [Member] | Services Transferred at a Point in Time [Member]
Disaggregation of Revenue [Abstract]
Total revenues	7,006	5,895	12,754	10,595
Campus Operations [Member] | Services Transferred over Time [Member]
Disaggregation of Revenue [Abstract]
Total revenues	95,908	82,318	193,527	163,970
Transitional [Member]
Disaggregation of Revenue [Abstract]
Total revenues	0	433	0	1,364
Transitional [Member] | Services Transferred at a Point in Time [Member]
Disaggregation of Revenue [Abstract]
Total revenues	0	3	0	12
Transitional [Member] | Services Transferred over Time [Member]
Disaggregation of Revenue [Abstract]
Total revenues	$ 0	$ 430	$ 0	$ 1,352