DERIVATIVE FINANCIAL INSTRUMENTS (Terms of Interest Swaps and Caps) (Details) - USD ($)	9 Months Ended
	Sep. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Aug. 31, 2014	Dec. 31, 2013	May. 31, 2012
Swap 1 | 1-Month LIBOR
Derivative [Line Items]
Variable rate spread (as a percentage)	0.10%
Swap 2 | 1-Month LIBOR
Derivative [Line Items]
Variable rate spread (as a percentage)	0.13%
Designated as Hedging Instrument | Swap 1
Derivative [Line Items]
Notional Amount	$ 25,000,000
Effective Start Date	Oct. 01, 2014
Maturity Date	Aug. 31, 2017
Pay Fixed Rate	1.1973%
Designated as Hedging Instrument | Swap 2
Derivative [Line Items]
Notional Amount	$ 25,000,000
Effective Start Date	Oct. 16, 2014
Maturity Date	Aug. 16, 2018
Pay Fixed Rate	1.5963%
Designated as Hedging Instrument | Swap 3
Derivative [Line Items]
Notional Amount	$ 25,000,000
Effective Start Date	Feb. 05, 2016
Maturity Date	Feb. 05, 2021
Pay Fixed Rate	2.703%
Designated as Hedging Instrument | Swap 4
Derivative [Line Items]
Notional Amount	$ 50,000,000
Effective Start Date	Aug. 05, 2016
Maturity Date	Aug. 05, 2021
Pay Fixed Rate	2.882%
Designated as Hedging Instrument | Swap 5
Derivative [Line Items]
Notional Amount	$ 25,000,000
Effective Start Date	Oct. 05, 2017
Maturity Date	Oct. 05, 2027
Pay Fixed Rate		2.54%
Designated as Hedging Instrument | Swap 6
Derivative [Line Items]
Notional Amount	$ 25,000,000
Effective Start Date	Mar. 05, 2018
Maturity Date	Mar. 05, 2028
Pay Fixed Rate		2.576%
Designated as Hedging Instrument | Interest Rate Swap
Derivative [Line Items]
Notional Amount	$ 175,000,000	$ 50,000,000	$ 175,000	$ 50,000,000	$ 175,000
Designated as Hedging Instrument | Terminated Swap 1
Derivative [Line Items]
Notional Amount	$ 25,000,000
Original Effective Start Date	Apr. 06, 2015
Original Maturity Date	Apr. 05, 2020
Date Terminated	Mar. 27, 2015
Termination Fee Paid	$ 123,000
Designated as Hedging Instrument | Terminated Swap 2
Derivative [Line Items]
Notional Amount	$ 25,000,000
Original Effective Start Date	May 05, 2015
Original Maturity Date	May 05, 2020
Date Terminated	Mar. 27, 2015
Termination Fee Paid	$ 122,000
Designated as Hedging Instrument | Terminated Swap 3
Derivative [Line Items]
Notional Amount	$ 25,000,000
Original Effective Start Date	Jun. 05, 2015
Original Maturity Date	Jun. 05, 2020
Date Terminated	Mar. 27, 2015
Termination Fee Paid	$ 121,000
Designated as Hedging Instrument | Terminated Swap 4
Derivative [Line Items]
Notional Amount	$ 25,000,000
Original Effective Start Date	Aug. 05, 2015
Original Maturity Date	Aug. 05, 2020
Date Terminated	Mar. 27, 2015
Termination Fee Paid	$ 921,000
Designated as Hedging Instrument | Terminated Interest Rate Swap
Derivative [Line Items]
Notional Amount	100,000,000
Termination Fee Paid	1,287,000
Designated as Hedging Instrument | Cap 1
Derivative [Line Items]
Notional Amount	$ 7,500,000					$ 7,500,000
Effective Start Date	Jul. 01, 2012
Maturity Date	Jul. 01, 2017
Strike Rate	0.47%
Designated as Hedging Instrument | Cap 1 | 3-Month LIBOR
Derivative [Line Items]
Variable rate spread (as a percentage)	4.00%
Designated as Hedging Instrument | Cap 2
Derivative [Line Items]
Notional Amount	$ 8,000,000					$ 8,000,000
Effective Start Date	Jul. 07, 2012
Maturity Date	Jul. 07, 2017
Strike Rate	0.47%
Designated as Hedging Instrument | Cap 2 | 3-Month LIBOR
Derivative [Line Items]
Variable rate spread (as a percentage)	3.10%
Designated as Hedging Instrument | Cap 3
Derivative [Line Items]
Notional Amount	$ 25,000,000			25,000,000
Effective Start Date	Sep. 15, 2014
Maturity Date	Sep. 15, 2019
Strike Rate	1.82%
Designated as Hedging Instrument | Cap 3 | 3-Month LIBOR
Derivative [Line Items]
Variable rate spread (as a percentage)	1.32%
Designated as Hedging Instrument | Cap 4
Derivative [Line Items]
Notional Amount	$ 10,000,000			$ 10,000,000
Effective Start Date	Sep. 30, 2014
Maturity Date	Sep. 30, 2019
Strike Rate	1.85%
Designated as Hedging Instrument | Cap 4 | 3-Month LIBOR
Derivative [Line Items]
Variable rate spread (as a percentage)	2.80%
Designated as Hedging Instrument | Interest Rate Cap
Derivative [Line Items]
Notional Amount	$ 50,500,000