Business and Summary of Significant Accounting Principles (Changes in issued Common Stock) (Details)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Common Stock [Roll Forward]
Shares issued upon stock option exercises	19,000
Common Stock - Class A [Member]
Common Stock [Roll Forward]
Balance, Beginning	37,299,000	38,534,000
Class B shares converted to Class A	2,000	2,000
Shares issued upon stock option exercises	19,000	50,000
Share awards issued	1,119,000	621,000
Shares retired	(26,000)	(795,000)
Shares acquired to settle minimum statutory tax withholding requirements	(24,000)	(14,000)
Other		(2,000)
Balance, Ending	38,389,000	38,396,000
Common Stock - Class B [Member]
Common Stock [Roll Forward]
Balance, Beginning	3,165,000	3,169,000
Class B shares converted to Class A	2,000	2,000
Shares issued upon stock option exercises	0	0
Share awards issued	0	0
Shares retired	0	0
Shares acquired to settle minimum statutory tax withholding requirements	0	0
Other		0
Balance, Ending	3,163,000	3,167,000