Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Statement of Financial Position [Abstract]
Accounts Receivable, allowances	$ 46,946	$ 35,690
Lease Merchandise, accumulated depreciation	760,722	743,222
Loans Receivable, allowances	19,829	13,830
Commitments and Contingencies
Common Stock, Par Value (in dollars per share)	$ 0.50	$ 0.50
Common Stock, Shares Authorized	225,000,000	225,000,000
Common Stock, Shares Issued	90,752,123	90,752,123
Treasury Shares	20,733,010	19,303,578