REVENUE EARNING EQUIPMENT, NET Level 3 Fair Value Measurement (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Revenue Earning Equipment [Line Items]
Total losses	$ 24,278	$ 14,001	$ 40,972	$ 27,572
Net book value of assets held for sale	70,000		70,000		$ 50,000
Fair Value, Inputs, Level 3 | Fair Value, Measurements, Nonrecurring
Revenue Earning Equipment [Line Items]
Assets held for sale	98,370		98,370		81,229
Total losses	24,278	14,001	40,972	27,572
Fair Value, Inputs, Level 3 | Fair Value, Measurements, Nonrecurring | Trucks
Revenue Earning Equipment [Line Items]
Assets held for sale	44,059		44,059		44,325
Total losses	8,740	10,295	20,287	18,896
Fair Value, Inputs, Level 3 | Fair Value, Measurements, Nonrecurring | Tractors
Revenue Earning Equipment [Line Items]
Assets held for sale	52,620		52,620		35,397
Total losses	14,053	2,101	19,021	5,478
Fair Value, Inputs, Level 3 | Fair Value, Measurements, Nonrecurring | Trailers
Revenue Earning Equipment [Line Items]
Assets held for sale	1,691		1,691		$ 1,507
Total losses	$ 1,485	$ 1,605	$ 1,664	$ 3,198