INCOME TAXES - Narrative (Details) (USD $)	3 Months Ended								4 Months Ended	12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	May 15, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Disclosure [Abstract]
Provision for U.S. federal or state income taxes	$ (6,526,000)	$ 7,801,000	$ 21,395,000	$ 287,000	$ 0	$ 0	$ 0	$ 0	$ 0	$ 22,957,000	$ 0	$ 0
REIT taxable income distribution										100.00%
U.S. federal statutory rate										35.00%	35.00%
Additions for tax position of current year										2,258,000
Unrecognized tax benefit that would impact effective tax rate if recognized	$ 2,300,000									$ 2,300,000