Rental Merchandise Rental Merchandise (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Rental Merchandise [Abstract]
On rent cost	$ 1,112,130	$ 1,110,968
On rent accumulated depreciation	(414,860)	(427,160)
On rent	697,270	683,808	$ 701,803
Held for rent cost	163,636	147,300
Held for rent accumulated depreciation	(25,218)	(23,638)
Held for rent	$ 138,418	$ 123,662	$ 167,188