Revenue Earning Equipment Schedule of Revenue Earning Equipment (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Revenue Earning Equipment [Line Items]
Cost	$ 12,493,838	$ 12,148,290
Accumulated Depreciation	(4,219,006)	(3,963,555)
Net Book Value	8,274,832	8,184,735
Held for use: Full service lease [Member]
Revenue Earning Equipment [Line Items]
Cost	9,460,749	8,839,941
Accumulated Depreciation	(2,979,195)	(2,723,605)
Net Book Value	6,481,554	6,116,336
Held for use: Commercial rental [Member]
Revenue Earning Equipment [Line Items]
Cost	2,529,929	2,811,715
Accumulated Depreciation	(893,545)	(907,412)
Net Book Value	1,636,384	1,904,303
Held-for-sale [Member]
Revenue Earning Equipment [Line Items]
Cost	503,160	496,634
Accumulated Depreciation	(346,266)	(332,538)
Net Book Value	156,894	164,096
Assets Held under Capital Leases [Member]
Revenue Earning Equipment [Line Items]
Cost	42,900	47,500
Accumulated Depreciation	$ (21,600)	$ (22,200)