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Marketable Securities
3 Months Ended
Mar. 31, 2013
Investments, Debt and Equity Securities [Abstract]  
MARKETABLE SECURITIES
MARKETABLE SECURITIES

During the past few years, the Company invested a portion of its cash on hand by purchasing marketable securities with maturities in excess of three months. During the six months ended March 31, 2013, all of the Company's marketable securities either matured or were sold, with total proceeds of $325.4 million and a minimal gain.