UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 17,569	$ 59,066
Adjustments to reconcile net income to net cash provided by operating activities -
Depreciation, depletion and amortization	151,384	141,587
Amortization and write-off of debt issuance costs, premium and discount	7,370	5,813
Equity in earnings of investments in equity investees	(28,654)	(32,364)
Cash distributions of earnings of equity investees	28,654	31,316
Non-cash effect of long-term incentive compensation plans	9,786	9,656
Deferred and other tax liabilities	(13)	551
Unrealized losses (gains) on derivative transactions	(10,941)	30,021
Other, net	6,255	8,718
Net changes in components of operating assets and liabilities (Note 15)	49,232	957
Net cash provided by operating activities	230,642	255,321
CASH FLOWS FROM INVESTING ACTIVITIES:
Payments to acquire fixed and intangible assets	(346,443)	(247,361)
Cash distributions received from equity investees - return of investment	11,687	13,300
Investments in equity investees	(285)	(2,197)
Proceeds from asset sales	10,996	202
Payments for (Proceeds from) Other Investing Activities	0
Net cash used in investing activities	(324,045)	(231,724)
CASH FLOWS FROM FINANCING ACTIVITIES:
Borrowings on senior secured credit facility	766,600	501,976
Repayments on senior secured credit facility	(930,100)	(573,776)
Proceeds from issuance of senior unsecured notes (Note 10)	700,000	500,000
Repayment of senior unsecured notes (Note 10)	(339,310)	(341,135)
Repayment of Alkali senior secured notes (Note 10)	(5,815)	0
Debt issuance costs	(13,252)	(14,269)
Contributions from noncontrolling interests	16,200	34,920
Distributions to noncontrolling interests	(19,197)	(22,223)
Distributions to common unitholders	(36,740)	(36,774)
Distributions to Class A Convertible Preferred unitholders	(43,788)	(48,019)
Redemption of Class A Convertible Preferred Units (Note 11)	0	(25,000)
Other, net	3,266	4,446
Net cash provided by (used in) financing activities	97,864	(19,854)
Net increase in cash, cash equivalents and restricted cash	4,461	3,743
Cash, cash equivalents and restricted cash at beginning of period	28,038	26,567
Cash, cash equivalents and restricted cash at end of period	$ 32,499	$ 30,310