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PREPAIDS AND OTHER (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
PREPAIDS AND OTHER    
Inventory advances $ 17,613 $ 16,486
Insurance and licenses 2,374 2,024
Other 4,265 2,164
Prepaids and other $ 24,252 $ 20,674