OTHER INCOME (EXPENSE) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Component of Other Income, Nonoperating [Line Items]
Interest income	$ 2,667	$ 3,038	$ 3,396
Gain (Loss) on Disposition of Assets	2,418	3,438	(173)
Discount amortization on prepaid royalty	1,956	2,712	3,296
Income (Loss) from Equity Method Investments	0	0	0
Investment gain (loss) related to contractual obligations	(361)	1,116	1,315
Rental Income, Nonoperating	936	903	846
Other income (expense)	1,657	343	1,825
Foreign Currency Transaction Gain (Loss), before Tax	(4,758)	(31,713)	(4,920)
Nonoperating Income (Expense)	11,063	13,658	11,935
Wheels India [Member]
Component of Other Income, Nonoperating [Line Items]
Income (Loss) from Equity Method Investments	$ 1,790	$ 2,108	$ 1,430