SUBSEQUENT EVENT (Details) (USD $)	9 Months Ended		0 Months Ended	1 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Oct. 28, 2014 Subsequent event	Oct. 31, 2014 Subsequent event	Oct. 29, 2014 Subsequent event Interest Rate Swap Designated as Hedging Instrument LIBOR
SUBSEQUENT EVENT
Quarterly dividend declared (in dollars per share)				$ 0.18
Dividend paid in cash	$ 11,640,000	$ 6,645,000	$ 3,900,000
Debt Instrument, Interest Rate, Stated Percentage					5.17%
Derivative Liability, Notional Amount					$ 250,000,000