DERIVATIVE FINANCIAL INSTRUMENTS (Schedule of Outstanding Derivative Financial Instruments) (Details) € in Thousands, £ in Thousands, $ in Thousands	Dec. 31, 2017 USD ($)		Dec. 31, 2017 GBP (£)		Dec. 31, 2017 EUR (€)
Interest Rate Swap [Member]
Derivatives, Fair Value [Line Items]
Notional amount	$ 150,000
Fair Value	$ (80)
Float Rate	1.51%		1.51%		1.51%
Fix Rate	1.80%		1.80%		1.80%
Interest Rate Swap one [Member]
Derivatives, Fair Value [Line Items]
Notional amount	$ 150,000	[1]
Fair Value	$ 28	[1]
Float Rate		[1]		[1]		[1]
Fix Rate	2.09%	[1]	2.09%	[1]	2.09%	[1]
Interest Rate Swap Two [Member]
Derivatives, Fair Value [Line Items]
Notional amount	$ 150,000	[2]
Fair Value	$ (20)	[2]
Float Rate		[2]		[2]		[2]
Fix Rate	2.24%	[2]	2.24%	[2]	2.24%	[2]
Forward Contracts [Member]
Derivatives, Fair Value [Line Items]
Notional amount | £			£ 1,859
Fair Value	$ (156)
Forward Contracts One [Member]
Derivatives, Fair Value [Line Items]
Notional amount	5,250
Fair Value	33
Forward Contracts Two [Member]
Derivatives, Fair Value [Line Items]
Notional amount | €					€ 200
Fair Value	$ (10)

[1] This swap represents a forward contract and will be effective in November 2018.

[2] This swap represents a forward contract and will be effective in November 2019.