Business and Summary of Significant Accounting Policies - Lease Merchandise (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Significant Accounting Policies [Line Items]
Lease merchandise salvage value percentage	0.00%
Lease Merchandise, net of Accumulated Depreciation and Allowances	$ 1,318,470	$ 1,152,135
Allowance for Lease Merchandise Write offs:
Beginning Balance	35,629	33,399	$ 33,405
Merchandise Written off, net of Recoveries	(181,252)	(143,230)	(134,110)
Provision for Write-offs	192,317	145,460	134,104
Ending Balance	$ 46,694	35,629	$ 33,399
Agreement One | Progressive Leasing
Significant Accounting Policies [Line Items]
Lease agreement period	12 months
Merchandise on Lease
Significant Accounting Policies [Line Items]
Lease Merchandise, net of Accumulated Depreciation and Allowances	$ 1,053,684	908,268
Merchandise on Lease | Minimum
Significant Accounting Policies [Line Items]
Lease merchandise useful life	12 months
Merchandise on Lease | Maximum
Significant Accounting Policies [Line Items]
Lease merchandise useful life	24 months
Merchandise Not on Lease
Significant Accounting Policies [Line Items]
Lease merchandise useful life	36 months
Lease Merchandise, net of Accumulated Depreciation and Allowances	$ 264,786	$ 243,867