Goodwill and Other Intangible Assets (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Gain (Loss) on Sale of Capital Leases, Net	$ (720)	$ 0	$ 0
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	5 years 3 months 10 days
Aggregate Amortization Expense 2017	$ 11,500
Aggregate Amortization Expense 2018	8,800
Aggregate Amortization Expense 2019	6,700
Aggregate Amortization Expense 2020	4,700
Aggregate Amortization Expense 2021	3,000
Pacific Western Equipment Finance [Member]
Goodwill, Subsequent Recognition of Deferred Tax Asset	$ (500)