GOODWILL AND OTHER INTANGIBLE ASSETS - Intangible Assets Other Than Goodwill (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Jun. 30, 2018
Amortizable intangible assets
Gross Carrying Amount	$ 21,590	$ 21,590
Accumulated Amortization	(3,074)	(2,544)
Total	18,516	19,046
Indefinite-lived intangible assets
Trade names	32,000	32,000
Total intangible assets
Gross Carrying Amount	53,590	53,590
Net Carrying Amount	50,516	51,046
Dealer network
Amortizable intangible assets
Gross Carrying Amount	21,590	21,590
Accumulated Amortization	(3,074)	(2,544)
Total	$ 18,516	$ 19,046