SIGNIFICANT ACQUISITIONS AND DIVESTITURES (Earn-Out Consideration) (Details) - $ / shares		3 Months Ended
	Feb. 09, 2018	Jun. 30, 2018
AM Contributor
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
Shares issued to acquire business (in shares)		1,197,934
KFM Contributor
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
Shares issued to acquire business (in shares)		89,680
SRII Opco, LP | $14.00 VWAP
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
20-Day VWAP (in dollars per share)	$ 14.00
SRII Opco, LP | $16.00 VWAP
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
20-Day VWAP (in dollars per share)	16.00
SRII Opco, LP | $18.00 VWAP
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
20-Day VWAP (in dollars per share)	18.00
SRII Opco, LP | $20.00 VWAP
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
20-Day VWAP (in dollars per share)	$ 20.00
SRII Opco, LP | AM Contributor | $14.00 VWAP
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
Shares issued to acquire business (in shares)	10,714,285
SRII Opco, LP | AM Contributor | $16.00 VWAP
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
Shares issued to acquire business (in shares)	9,375,000
SRII Opco, LP | AM Contributor | $18.00 VWAP
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
Shares issued to acquire business (in shares)	13,888,889
SRII Opco, LP | AM Contributor | $20.00 VWAP
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
Shares issued to acquire business (in shares)	12,500,000
SRII Opco, LP | KFM Contributor | $14.00 VWAP
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
Shares issued to acquire business (in shares)	7,142,857
SRII Opco, LP | KFM Contributor | $16.00 VWAP
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
Shares issued to acquire business (in shares)	6,250,000