Revenue Earning Equipment (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Revenue Earning Equipment [Abstract]
Revenue earning equipment depreciation expense	$ 1,100,000	$ 1,040,000	$ 968,000
Losses from fair value adjustments	67,415	17,956	$ 10,764
Assets Held-for-sale	$ 15,000	$ 131,000