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OTHER INCOME (EXPENSE) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Component of Other Income, Nonoperating [Line Items]      
Gain (Loss) on Disposition of Assets $ 3,438 $ (173) $ (707)
Interest income 3,038 3,396 859
Discount amortization on prepaid royalty 2,712 3,296 3,736
Income (Loss) from Equity Method Investments 0 0 0
Investment gain (loss) related to contractual obligations 1,116 1,315 1,022
Rental Income, Nonoperating 903 846 710
Other income (expense) 343 1,825 802
Foreign Currency Transaction Gain (Loss), before Tax (31,713) (4,920) 0
Nonoperating Income (Expense) (18,055) 7,015 6,823
Wheels India [Member]      
Component of Other Income, Nonoperating [Line Items]      
Income (Loss) from Equity Method Investments $ 2,108 $ 1,430 $ 401