NONCONSOLIDATED VARIABLE INTEREST ENTITIES (Details) - Variable Interest Entity, Not Primary Beneficiary $ in Thousands	Dec. 31, 2018 USD ($) railcar	Dec. 31, 2017 USD ($)
Variable Interest Entity [Line Items]
Total assets	$ 17	$ 30
Total liabilities	10	284
Maximum exposure to loss	$ 7	0
Number of railcars with payment and performance obligations | railcar	1,483
Accounts receivable
Variable Interest Entity [Line Items]
Total assets	$ 17	30
Total liabilities	0	0
Maximum exposure to loss	7	0
Deferred Revenue
Variable Interest Entity [Line Items]
Total assets	0
Total liabilities	10
Maximum exposure to loss	$ 0
Deferred revenue
Variable Interest Entity [Line Items]
Total assets		0
Total liabilities		284
Maximum exposure to loss		$ 0