PARTNERS' CAPITAL (Tables)

9 Months Ended

Sep. 30, 2018

Equity [Abstract]

Schedule of partner units activity

A rollforward of the number of common limited partner and General Partner units follows.

	Limited partners
	Series A Preferred Units		Common		General Partner
Units, January 1, 2018		300,000		73,085,996		1,490,999
Net units issued under the SMLP LTIP		—		269,779		—
Units, September 30, 2018		300,000		73,355,775		1,490,999

Details of cash distributions

We paid the following per-unit distributions during the three and nine months ended September 30:  

	Three months ended September 30,				Nine months ended September 30,
	2018		2017		2018		2017
Per-unit distributions to unitholders	$	0.575	$	0.575	$	1.725	$	1.725

Our payment of IDRs as reported in distributions to unitholders – general partner in the statement of partners' capital during the three and nine months ended September 30 follow

	Three months ended September 30,				Nine months ended September 30,
	2018		2017		2018		2017
	(In thousands)
IDR payments	$	2,136	$	2,127	$	6,400	$	6,333