DERIVATIVE INSTRUMENTS (Textual) (Details) - Foreign Exchange Contract [Member] PHP in Thousands, CAD in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2016 PHP	Dec. 31, 2016 CAD	Dec. 31, 2015 PHP	Dec. 31, 2015 CAD	Dec. 31, 2014 PHP	Dec. 31, 2014 CAD	Dec. 31, 2016 USD ($)	Dec. 31, 2016 PHP	Dec. 31, 2016 CAD	Dec. 31, 2015 USD ($)	Dec. 31, 2015 PHP	Dec. 31, 2015 CAD	Dec. 31, 2014 USD ($)	Dec. 31, 2014 PHP	Dec. 31, 2014 CAD
Derivative [Line Items]
Derivative, notional amount | $							$ 37,954			$ 9,260			$ 45,725
Reclassification period of unrealized gains and losses from AOCI to earnings	12 months	12 months
Minimum [Member]
Derivative [Line Items]
Contract period	3 months	3 months
Maximum [Member]
Derivative [Line Items]
Contract period	12 months	12 months
Canada, Dollars
Derivative [Line Items]
Derivative, notional amount							12,723		CAD 17,080	1,997		CAD 2,470	8,736		CAD 9,670
Foreign Currency Acquired Through Forward Exchange Contracts, Amount | CAD		CAD 19,555		CAD 8,580		CAD 14,630
Philippines, Pesos
Derivative [Line Items]
Derivative, notional amount							$ 25,231	PHP 1,178,800		$ 7,263	PHP 329,000		$ 36,989	PHP 1,627,920
Foreign Currency Acquired Through Forward Exchange Contracts, Amount | PHP	PHP 1,433,800		PHP 1,029,100		PHP 2,685,550