BASIS OF PRESENTATION (Details)	9 Months Ended
	Sep. 30, 2016 plan Institution
Business Acquisition
Number of acute care hospitals operated by subsidiaries	79
Number of short-stay surgical hospitals	20
Number of hospitals recorded using equity method	129
Number of outpatient centers	470
Number of facilities owned by subsidiaries	9
Number of health plans | plan	6
United Surgical Partners International
Business Acquisition
Number of short-stay surgical hospitals	20