Basis and Summary of Significant Accounting Policies - Lease Merchandise (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Significant Accounting Policies [Line Items]
Lease merchandise salvage value percentage	0.00%
Lease agreement, lease period used as asset useful life	12 months
Lease Merchandise, net of Accumulated Depreciation and Allowances	$ 1,292,724		$ 1,318,470
Components of the allowance of leases merchandise write-offs:
Beginning Balance	46,694	$ 35,629
Merchandise Written off, net of Recoveries	(105,571)	(80,856)
Provision for Write-offs	117,994	91,420
Ending Balance	59,117	$ 46,193
Merchandise on Lease
Significant Accounting Policies [Line Items]
Lease Merchandise, net of Accumulated Depreciation and Allowances	$ 1,036,456		1,053,684
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	$ 256,268		$ 264,786