Consolidated Balance Sheets (Parenthetical) (USD $) In Millions, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Stockholders' Equity Attributable to Parent	$ 210.3	$ 258.4
Allowance for Doubtful Accounts Receivable, Current	1.5	1.2
Common Class A [Member]
Common stock, par value	$ 1	$ 1
Common stock, shares authorized	75,000,000	75,000,000
Common stock, shares issued	13,401,938	13,401,938
Common stock, shares outstanding	13,401,938	13,401,938
Common Class B [Member]
Common stock, par value	$ 1	$ 1
Common stock, shares authorized	25,000,000	25,000,000
Common stock, shares issued	5,077,746	5,077,746
Common stock, shares outstanding	5,077,746	5,077,746
Common Stock [Member] | Common Class A [Member]
Stockholders' Equity Attributable to Parent	13.4	13.4
Common Stock [Member] | Common Class B [Member]
Stockholders' Equity Attributable to Parent	$ 5.1	$ 5.1