SUBSEQUENT EVENTS (Details) - USD ($)			12 Months Ended
	Feb. 24, 2017	Dec. 17, 2014	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Nov. 05, 2014	Sep. 19, 2012
Subsequent Event [Line Items]
Loss on extinguishment of debt			$ (5,382,000)	$ 0	$ 150,000
Senior Unsecured Notes | Senior Notes Due, 2017
Subsequent Event [Line Items]
Debt instrument, repurchased face amount		$ 5,400,000	21,900,000
Debt instrument, repurchase price amount		5,600,000	21,400,000
Loss on extinguishment of debt		$ 200,000	(300,000)
Senior Unsecured Notes | Senior Notes Due, 2017
Subsequent Event [Line Items]
Debt instrument, repurchase price amount						$ 325,000,000.0
Debt instrument, aggregate amount			$ 297,700,000				$ 325,000,000.0
Subsequent Event | Senior Unsecured Notes | Senior Notes Due, 2017
Subsequent Event [Line Items]
Debt instrument, repurchased face amount	$ 6,100,000
Debt instrument, repurchase price amount	6,200,000
Loss on extinguishment of debt	(55,155)
Unamortized debt issuance costs	$ (24,455)