XML 22 R3.htm IDEA: XBRL DOCUMENT v2.4.0.6
Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $)
In Thousands, except Share data, unless otherwise specified
Mar. 31, 2012
Dec. 31, 2011
Allowance for doubtful accounts receivable $ 2,283 $ 2,314
Preferred stock, no par value      
Preferred stock, cumulative redeemable designated 1.00 1.00
Preferred stock, shares issued 0.26 0.26
Temporary equity, shares outstanding 0.26 0.26
Preferred stock, aggregate liquidation value $ 25,921 $ 25,921
Class B Common Stock
    
Common stock, shares authorized 100,000,000 100,000,000
Common stock, shares issued 56,061,000 56,057,000
Common stock, par value      
Class A Common Stock
    
Common stock, shares authorized 15,000,000 15,000,000
Common stock, shares issued 7,332,000 7,332,000
Common stock, par value      
Class B Treasury Stock
    
Treasury stock, shares 4,655,000 4,655,000
Class A Treasury Stock
    
Treasury stock, shares 1,579,000 1,579,000