DERIVATIVE FINANCIAL INSTRUMENTS (Schedule of Outstanding Derivative Financial Instruments) (Details) £ in Thousands, $ in Thousands	Dec. 31, 2018 USD ($)		Dec. 31, 2018 GBP (£)
Interest Rate Swap [Member]
Derivatives, Fair Value [Line Items]
Notional amount	$ 150,000
Fair Value	$ 599
Float Rate	2.48%		2.48%
Fix Rate	2.09%		2.09%
Interest Rate Swap One [Member]
Derivatives, Fair Value [Line Items]
Notional amount	$ 150,000	[1]
Fair Value	$ 308	[1]
Fix Rate	2.24%	[1]	2.24%	[1]
Forward Contracts [Member]
Derivatives, Fair Value [Line Items]
Notional amount | £			£ 700
Fair Value | £			£ (119)
Forward Contracts One [Member]
Derivatives, Fair Value [Line Items]
Notional amount	$ 8,500
Fair Value	$ (416)

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