OTHER NON-OPERATING EXPENSE (Tables)

12 Months Ended

Dec. 31, 2018

Other Income and Expenses [Abstract]

Schedule of Other Nonoperating Income (Expense) [Table Text Block]

Other non-operating income / expense, net comprised the following for the years ended December 31, 2018, 2017 and 2016:

	For The Year Ended December 31,
	2018			2017			2016
Interest income	$	725		$	536		$	590
Foreign currency exchange (loss) / gain, net	(2,691		)	17,761			6,929
Change in fair value of derivatives (Note 14)	(1,715		)	(1,783		)	(10,213		)
Other income, net	508			428			442
Total other non-operating (expense) / income, net	$	(3,173	)	$	16,942		$	(2,252	)