Business and Summary of Significant Accounting Policies - Hurricane Impact (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Accounting Policies [Abstract]
Accounts receivable net and lease merchandise net additional reserves recorded			$ 3.6
Estimated losses related to merchandise on hand and on lease destroyed or severely damaged			4.7
Gain in excess of insurance receivable		$ 0.9
Insurance proceeds received, before tax	$ (4.5)		$ (3.3)