REVENUE RECOGNITION (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
REVENUE RECOGNITION [Abstract]
Unearned tuition	$ 22,979		$ 22,979		$ 26,906
Revenue recognized included in contract liability			26,000
Disaggregation of Revenue [Abstract]
Total revenues	114,410	$ 99,618	320,691	$ 275,548
Services Transferred at a Point in Time [Member]
Disaggregation of Revenue [Abstract]
Total revenues	9,320	7,494	22,074	18,101
Services Transferred Over Time [Member]
Disaggregation of Revenue [Abstract]
Total revenues	105,090	92,124	298,617	257,447
Campus Operations [Member]
Disaggregation of Revenue [Abstract]
Total revenues	114,410	99,527	320,691	274,093
Campus Operations [Member] | Services Transferred at a Point in Time [Member]
Disaggregation of Revenue [Abstract]
Total revenues	9,320	7,489	22,074	18,084
Campus Operations [Member] | Services Transferred Over Time [Member]
Disaggregation of Revenue [Abstract]
Total revenues	105,090	92,038	298,617	256,009
Transitional [Member]
Disaggregation of Revenue [Abstract]
Total revenues	0	91	0	1,455
Transitional [Member] | Services Transferred at a Point in Time [Member]
Disaggregation of Revenue [Abstract]
Total revenues	0	5	0	17
Transitional [Member] | Services Transferred Over Time [Member]
Disaggregation of Revenue [Abstract]
Total revenues	$ 0	$ 86	$ 0	$ 1,438