UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 8,282,000	$ 125,848,000
Adjustments to reconcile net income to net cash provided by operating activities -
Depreciation, depletion and amortization	233,221,000	209,966,000
Amortization and write-off of debt issuance costs, premium and discount	10,319,000	8,206,000
Equity in earnings of investments in equity investees	(40,288,000)	(49,606,000)
Cash distributions of earnings of equity investees	40,144,000	48,625,000
Non-cash effect of long-term incentive compensation plans	8,120,000	15,236,000
Deferred and other tax liabilities	(1,192,000)	925,000
Unrealized losses (gains) on derivative transactions	(9,364,000)	17,721,000
Other, net	8,972,000	15,839,000
Net changes in components of operating assets and liabilities (Note 15)	59,752,000	3,604,000
Net cash provided by operating activities	317,966,000	396,364,000
CASH FLOWS FROM INVESTING ACTIVITIES:
Payments to acquire fixed and intangible assets	(466,088,000)	(395,768,000)
Cash distributions received from equity investees - return of investment	18,685,000	19,600,000
Investments in equity investees	(285,000)	(4,463,000)
Proceeds from asset sales	11,302,000	307,000
Payments for (Proceeds from) Other Investing Activities	0
Net cash used in investing activities	(436,386,000)	(375,992,000)
CASH FLOWS FROM FINANCING ACTIVITIES:
Borrowings on senior secured credit facility	1,060,000,000	829,776,000
Repayments on senior secured credit facility	(1,150,700,000)	(836,776,000)
Proceeds from issuance of senior unsecured notes (Note 10)	700,000,000	500,000,000
Repayment of senior unsecured notes (Note 10)	(339,310,000)	(341,135,000)
Repayment of Alkali senior secured notes (Note 10)	(8,695,000)	0
Debt issuance costs	(17,685,000)	(14,675,000)
Contributions from noncontrolling interests	25,290,000	60,840,000
Distributions to noncontrolling interests	(29,439,000)	(33,203,000)
Distributions to common unitholders	(55,110,000)	(55,161,000)
Distributions to Class A Convertible Preferred unitholders	(65,682,000)	(71,333,000)
Redemption of Class A Convertible Preferred Units (Note 11)	0	(50,000,000)
Repurchase of Class A Common Units (Note 11)	0	(1,044,000)
Other, net	3,481,000	5,677,000
Net cash provided by (used in) financing activities	122,150,000	(7,034,000)
Net increase in cash, cash equivalents and restricted cash	3,730,000	13,338,000
Cash, cash equivalents and restricted cash at beginning of period	28,038,000	26,567,000
Cash, cash equivalents and restricted cash at end of period	$ 31,768,000	$ 39,905,000