GOODWILL AND OTHER INTANGIBLES (Finite-lived Intangibles) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Net Carrying Amount	$ 386,722	$ 416,204
Accumulated Amortization	(407,201)	(377,718)
Dealer networks
Finite-Lived Intangible Assets [Line Items]
Net Carrying Amount	328,375	347,982
Accumulated Amortization	(251,625)	(232,018)
Chrysler relationship
Finite-Lived Intangible Assets [Line Items]
Net Carrying Amount	42,500	50,000
Accumulated Amortization	(96,250)	(88,750)
Trade name
Finite-Lived Intangible Assets [Line Items]
Net Carrying Amount	13,200	13,500
Accumulated Amortization	(4,800)	(4,500)
Other intangibles
Finite-Lived Intangible Assets [Line Items]
Net Carrying Amount	2,647	4,722
Accumulated Amortization	$ (54,526)	$ (52,450)