UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Cash flows from operating activities:
Net (loss) income	$ (42,750)	$ 3,697
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation and amortization	82,919	79,752
Noncash lease expense	2,299	0
Amortization of debt issuance costs	3,296	3,184
Deferred Purchase Price Obligation	11,899	53,759
Unit-based and noncash compensation	5,370	6,188
Loss from equity method investees	1,197	3,703
Distributions from equity method investees	28,008	26,528
Gain on asset sales, net	(1,595)	(6)
Long-lived asset impairment	45,021	2,127
Goodwill impairment	16,211	0
Changes in operating assets and liabilities:
Accounts receivable	8,363	(11,557)
Trade accounts payable	821	(2,991)
Accrued expenses	(12,193)	5,848
Due to affiliate	(98)	(1,075)
Deferred revenue, net	1,910	5,160
Ad valorem taxes payable	(2,061)	(106)
Accrued interest	3,081	2,975
Accrued environmental remediation, net	(2,025)	(3,060)
Other, net	(6,254)	(7,634)
Net cash provided by operating activities	143,419	166,492
Cash flows from investing activities:
Capital expenditures	(151,663)	(137,033)
Proceeds from asset sale (net of cash of $1,475 for the nine months ended September 30, 2019)	90,111	496
Distributions from equity method investment	7,252	0
Investment in equity method investee	(11,330)	0
Other, net	343	(209)
Net cash used in investing activities	(65,287)	(136,746)
Cash flows from financing activities:
Distributions to unitholders	(92,833)	(135,484)
Borrowings under Revolving Credit Facility	265,000	202,000
Repayments under Revolving Credit Facility	(131,000)	(79,000)
Repayment of Deferred Purchase Price Obligation	(100,000)	0
Debt issuance costs	(413)	(334)
Other, net	(3,931)	(3,738)
Net cash used in financing activities	(77,427)	(30,806)
Net change in cash and cash equivalents	705	(1,060)
Cash and cash equivalents, beginning of period	4,345	1,430
Cash and cash equivalents, end of period	5,050	370
Supplemental cash flow disclosures:
Cash interest paid	54,100	44,126
Less capitalized interest	5,752	5,536
Interest paid (net of capitalized interest)	48,348	38,590
Cash paid for taxes	150	175
Noncash investing and financing activities
Capital expenditures in trade accounts payable (period-end accruals)	22,166	20,977
Asset contribution to an equity method investment	23,643	0
Series A Preferred Units
Cash flows from financing activities:
Distributions to unitholders	(14,250)	(14,250)
Topic 606
Noncash investing and financing activities
Capital expenditures relating to contributions in aid of construction for day 1 adoption	0	33,123
Topic 842
Noncash investing and financing activities
Right-of-use assets relating to Topic 842	$ 5,448	$ 0