REVENUE EARNING EQUIPMENT, NET - Summary of Impact from Review of Policy Depreciation (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenue Earning Equipment [Line Items]
Pre-tax earnings (loss) from continuing operations	$ (94,777)	$ 103,069	$ (208,411)	$ 171,220
Net earnings (loss)	$ (74,099)	$ 75,215	$ (183,712)	$ 120,531
Net earnings (in dollars per share)	$ (1.42)	$ 1.43	$ (3.52)	$ 2.28
Impact from review of policy depreciation
Revenue Earning Equipment [Line Items]
Pre-tax earnings (loss) from continuing operations	$ 80,000		$ 128,000
Net earnings (loss)	$ 59,000		$ 95,000
Net earnings (in dollars per share)	$ 1.13		$ 1.81