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Subsequent Events	6 Months Ended
Subsequent Events	Dec. 31, 2012
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events As of December 31, 2012, the Company had invested approximately $13.1 million in Alta Energy to drill in the Kaybob Duvernay shale in Alberta, Canada. In January 2013, we invested an additional $1.0 million, bringing the Company's total investment in Alta Energy to approximately $14.1 million.