Capital Stock Common Stock Outstanding (Details)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Class A Common Stock
Class of Stock [Line Items]
Common stock, shares outstanding, beginning of period	7,167,506	7,167,000	7,167,000
Exercise of stock options/stock appreciation rights	0	0	0
Director compensation arrangements, net	0	0	0
Restricted/performance shares activity, net of forfeitures	0	0	0
Acquisition/surrender of shares	0	0	0
Common stock, shares outstanding, end of period	7,167,506	7,167,506	7,167,000
Class B Common Stock
Class of Stock [Line Items]
Common stock, shares outstanding, beginning of period	52,005,492	52,069,000	52,071,000
Exercise of stock options/stock appreciation rights	154,615,000	157,000	804,000
Director compensation arrangements, net	13,480,000	16,000	18,000
Restricted/performance shares activity, net of forfeitures	135,504,000	138,000	197,000
Acquisition/surrender of shares	(980,117,000)	(375,000)	(1,021,000)
Common stock, shares outstanding, end of period	51,328,974	52,005,492	52,069,000