GOODWILL AND OTHER INTANGIBLE ASSETS - Schedule of Carrying Amount of Other Intangible Assets, Net (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Dec. 31, 2023	Jun. 30, 2023
Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Amortized intangible assets, Gross Amount	$ 19,745	$ 19,745
Amortized intangible assets, Accumulated Amortization / Impairment	(11,195)	(10,283)
Amortized intangible assets, Other intangible assets, net	8,550	9,462
Gross Amount	52,745	52,745
Accumulated Amortization / Impairment	(18,195)	(17,283)
Other intangible assets, net	34,550	35,462
Dealer network
Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Amortized intangible assets, Gross Amount	19,500	19,500
Amortized intangible assets, Accumulated Amortization / Impairment	(10,950)	(10,050)
Amortized intangible assets, Other intangible assets, net	8,550	9,450
Software
Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Amortized intangible assets, Gross Amount	245	245
Amortized intangible assets, Accumulated Amortization / Impairment	(245)	(233)
Amortized intangible assets, Other intangible assets, net	0	12
Trade names
Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Unamortized intangible assets, Gross Amount	33,000	33,000
Unamortized intangible assets, Accumulated Amortization / Impairment	(7,000)	(7,000)
Unamortized intangible assets, Other intangible assets, net	$ 26,000	$ 26,000