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COMMON STOCK (Details) (Class B [Member], USD $) In Millions, except Share data, unless otherwise specified	9 Months Ended
	Sep. 30, 2012
Class B [Member]
Authorized amount of repurchase of outstanding Class B common shares	$ 10
Shares repurchased and retired (in shares)	89,991
Shares repurchased and retired	$ 1.7

Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital).

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