Income Taxes - Components of Deferred Income Tax Liabilities and Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Deferred Tax Liabilities:
Lease Merchandise and Property, Plant and Equipment	$ 122,155	$ 185,891
Goodwill and Other Intangibles	37,080	52,135
Investment in Partnership	107,173	96,291
Other, Net	2,074	1,619
Total Deferred Tax Liabilities	268,482	335,936
Deferred Tax Assets:
Accrued Liabilities	25,509	33,243
Advance Payments	8,199	13,087
Other, Net	23,771	20,277
Total Deferred Tax Assets	57,479	66,607
Less Valuation Allowance	0	(875)
Total Deferred Tax Liabilities	$ 211,003	$ 270,204