Leases (Components of our right-of-use assets) (Details) $ in Thousands	Sep. 30, 2019 USD ($)
Finance leases
Buildings and Improvements	$ 114,696
Furniture and equipment	27,414
Rental trailers and other rental equipment	125,747
Rental trucks	1,759,118
Right-of-use assets, gross	2,026,975
Less: Accumulated depreciation	(736,048)
Right of use assets, net	1,290,927
Finance Leases
Finance leases
Buildings and Improvements	0
Furniture and equipment	27,414
Rental trailers and other rental equipment	125,747
Rental trucks	1,759,118
Right-of-use assets, gross	1,912,279
Less: Accumulated depreciation	(726,650)
Right of use assets, net	1,185,629
Operating leases
Finance leases
Buildings and Improvements	114,696
Furniture and equipment	0
Rental trailers and other rental equipment	0
Rental trucks	0
Right-of-use assets, gross	114,696
Less: Accumulated depreciation	(9,398)
Right of use assets, net	$ 105,298