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ACCOUNTS RECEIVABLE (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2011
Dec. 31, 2010
ACCOUNTS RECEIVABLE    
Trade $ 480,867 $ 240,712
Less allowance for doubtful accounts (12,328) (6,692)
Trade, net 468,539 234,020
Royalties 21,774 16,424
Other 78,955 24,375
Accounts receivable $ 569,268 $ 274,819