LEASES (Details) $ in Thousands					12 Months Ended
	Dec. 12, 2024 Squarefeet Option	Oct. 31, 2023 Squarefeet Option	Oct. 18, 2023 Squarefeet Option	Sep. 28, 2023 USD ($) ft²	Dec. 31, 2024 USD ($) Lease Option	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Aug. 31, 2022 USD ($)	Jun. 30, 2022 Squarefeet
Operating Leases [Abstract]
Approximate area of leased school space | Squarefeet	65,000	100,000	120,000						55,000
Undiscounted lease payments					$ 74,962			$ 12,200
Operating lease term	15 years 9 months	21 years 6 months	15 years		12 years
Number of renewal options | Option	2	3	2		2
Renewal lease term		5 years	5 years		5 years
Components of Lease Cost [Abstract]
Amortization of leased assets					$ 1,622	$ 175	$ 0
Total lease cost					23,865	20,109	18,998
Cash paid for amounts included in the measurement of operating lease liabilities [Abstract]
Operating Cash Flows - operating leases					17,989	16,103	18,443
Operating Cash Flows - finance leases					2,155	0	0
Financing Cash Flows - finance leases					495	0	0
Lease liabilities arising from obtaining right-of-use assets [Abstract]
Operating leases					59,061	10,477	13,820
Finance leases					$ 12,570	$ 15,971	0
Number of new operating leases | Lease					1
Number of new finance leases | Lease					1
Number of lease modifications | Lease					11
Operating ROU asset in exchange for an operating lease liability					$ 15,700
Noncash re-measurement of ROU asset and operating lease liability					$ 43,300
Weighted Average Remaining Lease Term [Abstract]
Operating leases					12 years 9 months 21 days	11 years 1 month 28 days
Finance leases					16 years 4 months 24 days	15 years 1 month 2 days
Weighted Average Discount Rate [Abstract]
Operating leases					6.60%	6.89%
Finance leases					7.69%	8.39%
Operating Leases [Abstract]
2025					$ 18,404
2026					18,976
2027					18,188
2028					18,948
2029					17,237
Thereafter					131,509
Total lease payments					223,262
Less: imputed interest					(74,962)			$ (12,200)
Present value of lease liabilities					148,300
Finance Leases [Abstract]
2025					506
2026					2,817
2027					2,918
2028					3,023
2029					3,132
Thereafter					43,417
Total lease payments					55,813
Less: imputed interest					(26,552)
Present value of lease liabilities					29,261
Selling, General and Administrative [Member]
Components of Lease Cost [Abstract]
Operating lease cost					19,665	$ 19,235	18,943
Variable lease cost					423	475	55
Depreciation and Amortization [Member]
Components of Lease Cost [Abstract]
Amortization of leased assets					1,622	175	0
Interest Expense [Member]
Components of Lease Cost [Abstract]
Interest on lease liabilities					$ 2,155	$ 224	$ 0
Purchase Transaction [Member]
Operating Leases [Abstract]
Area of property purchased | ft²				90,000
Property purchase price				$ 10,200
Minimum [Member]
Operating Leases [Abstract]
Remaining lease term					1 year
Renewal lease term	5 years
Maximum [Member]
Operating Leases [Abstract]
Remaining lease term					21 years
Renewal lease term	10 years