Annual report pursuant to Section 13 and 15(d)

(Loss) Earnings Per Share (Details)

v2.4.0.8
(Loss) Earnings Per Share (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
3 Months Ended 12 Months Ended
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2012
Sep. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2011
Sep. 30, 2011
Jun. 30, 2013
Jun. 30, 2012
Earnings Per Share [Abstract]                    
NET (LOSS) INCOME APPLICABLE TO MAGELLAN PETROLEUM CORPORATION $ (2,840) $ (4,332) $ (7,285) $ (5,310) $ 34,705 $ (4,590) $ (4,557) $ 940 $ (19,767) $ 26,498
Preferred stock dividend and accretion of preferred stock                 (722) 0
NET (LOSS) INCOME ATTRIBUTABLE TO COMMON STOCKHOLDERS                 $ (20,489) $ 26,498
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]                    
Basic weighted-average shares outstanding                 49,642,083 53,592,958
Add: dilutive effects of stock options and unvested stock grants                 0 448,269
Diluted weighted-average common shares outstanding                 49,642,083 54,041,227
Basic net loss (earnings) per common share $ (0.08) $ (0.09) $ (0.14) $ (0.10) $ 0.64 $ (0.09) $ (0.08) $ 0.02 $ (0.41) $ 0.49
Diluted net loss (earnings) per common share $ (0.08) $ (0.09) $ (0.14) $ (0.10) $ 0.64 $ (0.09) $ (0.08) $ 0.02 $ (0.41) $ 0.49