EQUITY (Details 2)	6 Months Ended	12 Months Ended
	Jun. 30, 2013 Noncontrolling interests in operating partnership SUMMIT HOTEL OP, LP	Dec. 31, 2012 Noncontrolling interests in operating partnership SUMMIT HOTEL OP, LP	Feb. 11, 2013 Noncontrolling interests in joint venture
Number of shares of common stock issuable upon conversion of common units	1
Common units redeemed	2,228,544
Shares of common stock issued to redeem common units	2,228,544
Number of common units of operating partnership owned by unaffiliated third parties	2,997,831	5,226,375
Percentage of limited partnership interest in operating partnership	4.30%	10.10%
Ownership interest in joint venture (as a percent)			80.00%
Ownership interest in joint venture by partners (as a percent)			20.00%