Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Statement of Financial Position [Abstract]
Accounts receivable, allowances	$ 57,839	$ 46,946
Lease Merchandise, accumulated depreciation and allowances	805,816	760,722
Loans Receivable, allowances and unamortized fees	20,538	19,829
Property, Plant and Equipment at Cost, accumulated depreciation	273,122	242,623
Other Intangibles, accumulated amortization	$ 121,100	$ 100,557
Common Stock, Par Value (in dollars per share)	$ 0.50	$ 0.50
Common Stock, Shares Authorized (in shares)	225,000,000	225,000,000
Common Stock, Shares Issued (in shares)	90,752,123	90,752,123
Treasury Shares (in shares)	22,164,789	20,733,010