UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 18,956	$ 3,388
Adjustments to reconcile net income to net cash provided by operating activities -
Depreciation, depletion and amortization	73,771	73,160
Amortization and write-off of debt issuance costs, premium and discount	2,884	3,534
Equity in earnings of investments in equity investees	(16,441)	(17,553)
Cash distributions of earnings of equity investees	15,569	17,328
Non-cash effect of long-term incentive compensation plans	4,315	4,630
Deferred and other tax liabilities	509	420
Unrealized losses (gains) on derivative transactions	(5,081)	27,127
Other, net	2,966	3,271
Net changes in components of operating assets and liabilities (Note 15)	28,473	(17,648)
Net cash provided by operating activities	125,921	97,657
CASH FLOWS FROM INVESTING ACTIVITIES:
Payments to acquire fixed and intangible assets	(174,173)	(131,625)
Cash distributions received from equity investees - return of investment	7,546	6,601
Investments in equity investees	(285)	(1,190)
Proceeds from asset sales	204	22
Payments for (Proceeds from) Other Investing Activities	0	4,332
Net cash used in investing activities	(166,708)	(121,860)
CASH FLOWS FROM FINANCING ACTIVITIES:
Borrowings on senior secured credit facility	364,300	269,376
Repayments on senior secured credit facility	279,400	350,376
Proceeds from issuance of 2030 Notes (Note 10)	0	500,000
Repayment of senior unsecured notes (Note 10)	0	(341,135)
Repayment of Alkali senior secured notes (Note 10)	2,976	0
Debt issuance costs	(1,082)	(12,944)
Contributions from noncontrolling interests	9,000	19,080
Distributions to noncontrolling interests	(10,107)	(15,005)
Distributions to common unitholders	(18,370)	(18,387)
Distributions to Class A Convertible Preferred unitholders	(21,894)	(24,002)
Other, net	8,129	7,835
Net cash provided by financing activities	47,600	34,442
Net increase in cash, cash equivalents and restricted cash	6,813	10,239
Cash, cash equivalents and restricted cash at beginning of period	28,038	26,567
Cash, cash equivalents and restricted cash at end of period	$ 34,851	$ 36,806