LEASING EQUIPMENT, NET (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2017 USD ($) aircraft commercial_jet_engine	Dec. 31, 2016 USD ($) aircraft commercial_jet_engine	Dec. 31, 2015 USD ($)
Leases [Abstract]
Leasing equipment	$ 1,217,862	$ 849,565
Less: Accumulated depreciation	(143,732)	(84,110)
Leasing equipment, net	$ 1,074,130	$ 765,455
Number of aircraft acquired | aircraft	25	9
Commercial jet engines acquired | commercial_jet_engine	58	28
Number of airfcraft sold	3	1
Commercial jet engines sold | commercial_jet_engine	14	4
Depreciation	$ 69,331	$ 43,886	$ 30,624
Gain on disposition of assets	$ 7,188	$ 5,214