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Quarterly report pursuant to Section 13 or 15(d)

BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES (Narrative) (Details)

v2.4.0.8
BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Related Party Transaction [Line Items] Ìý Ìý
Current Fiscal Year End Date --12-31 Ìý
Black Label And Black Thor Chromite Deposits [Member]
Ìý Ìý
Related Party Transaction [Line Items] Ìý Ìý
Ownership Interest 100.00% Ìý
Big Daddy Chromite Deposit [Member]
Ìý Ìý
Related Party Transaction [Line Items] Ìý Ìý
Ownership Interest 70.00% Ìý
Transaction Gains and Losses Resulting from Remeasurement [Member]
Ìý Ìý
Related Party Transaction [Line Items] Ìý Ìý
Foreign Currency Transaction Gain (Loss), before Tax $ (6.5) $ 3.7
Short-term intercompany loan [Member]
Ìý Ìý
Related Party Transaction [Line Items] Ìý Ìý
Foreign Currency Transaction Gain (Loss), before Tax (8.8) (0.5)
Cash and Cash Equivalents [Member]
Ìý Ìý
Related Party Transaction [Line Items] Ìý Ìý
Foreign Currency Transaction Gain (Loss), before Tax $ (3.1) $ (0.3)