STUDENT RECEIVABLES, Student Receivables (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2023	Dec. 31, 2022
STUDENT RECEIVABLES [Abstract]
Accounts receivables		$ 14,642	$ 22,734
Student Receivables [Abstract]
2023	[1]	37,385
2022	[1]	30,425
2021	[1]	10,336
2020	[1]	4,490
2019	[1]	3,115
Thereafter	[1]	1,899
Total	[1]	87,650
Write-Off's [Abstract]
2023	[2]	0
2022	[2]	6,310
2021	[2]	1,088
2020	[2]	175
2019	[2]	209
Thereafter	[2]	63
Total	[2]	$ 7,845

[1] Student receivables are presented gross and only relate to amounts owed directly from the individual student. These receivables do not include amounts owed relating to federal subsidy or from corporate partnerships.

[2] Write-off amounts included only relate to the current quarter ended March 31, 2023.