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Earnings (Loss) Per Share
6 Months Ended
Jun. 30, 2012
Earnings (Loss) Per Share [Abstract]  
Earnings (Loss) Per Share
(4)
Earnings (Loss) Per Share ("EPS"). The computation of basic and diluted earnings (loss) per common share for all periods is calculated using the number of shares of ALEX common stock outstanding on July 2, 2012, the first day of trading following the June 29, 2012 distribution of ALEX common stock to Holdings shareholders. For all periods presented, there were no dilutive shares because no actual A&B shares or share-based awards were outstanding prior to the Separation.