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Subsequent Event Subsequent Event	12 Months Ended
Subsequent Event Subsequent Event	Dec. 31, 2014
Subsequent Events [Abstract]
Subsequent Events [Text Block]	Subsequent Event On February 3, 2015, the Company announced that it had reached an agreement to sell a 50 percent stake in its export terminal in Barcarena, in the northern Brazilian state of Pará, to Glencore plc.