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REPURCHASES OF COMMON STOCK
3 Months Ended
Mar. 31, 2013
REPURCHASES OF COMMON STOCK [Abstract]  
REPURCHASES OF COMMON STOCK
5.      REPURCHASES OF COMMON STOCK

During the three-month period ended March 31, 2013, the Company repurchased approximately 0.4 million shares of its Class A common stock under its open market repurchase plan for approximately $14.6 million. During the three-month period ended March 31, 2012, the Company repurchased approximately 0.1 million shares of its Class A common stock under its open market repurchase plan for approximately $5.4 million.  At March 31, 2013, $120.7 million was available for repurchases under the stock repurchase program.