CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	$ 146,347	$ 129,135	$ (138,032)
Adjustments to reconcile net income (loss) to net cash provided by operating activities -
Depreciation, depletion and amortization	280,189	296,205	309,746
Gain on sale of assets	0	(40,000)	0
Amortization and write-off of debt issuance costs, premium and discount	12,889	9,271	13,716
Payments received under previously owned direct financing leases	0	0	70,000
Equity in earnings of investments in equity investees	(66,198)	(54,206)	(57,898)
Cash distributions of earnings of equity investees	64,972	55,571	57,080
Non-cash effect of long-term incentive compensation plans	25,379	17,810	8,783
Deferred and other tax liabilities	(624)	2,355	980
Cancellation of debt income	0	(8,618)	0
Unrealized losses (gains) on derivative transactions	36,635	(5,823)	30,700
Other, net	17,363	20,513	12,832
Net changes in components of operating assets and liabilities	4,174	(87,818)	30,044
Net cash provided by operating activities	521,126	334,395	337,951
CASH FLOWS FROM INVESTING ACTIVITIES:
Payments to acquire fixed and intangible assets	(620,019)	(424,195)	(301,395)
Cash distributions received from equity investees—return of investment	26,050	19,646	27,026
Investments in equity investees	(4,489)	(10,301)	(352)
Proceeds from asset sales	478	40,331	604
Other, net	4,332	0	0
Net cash used in investing activities	(593,648)	(374,519)	(274,117)
CASH FLOWS FROM FINANCING ACTIVITIES:
Borrowings on senior secured credit facility	1,183,566	971,500	776,300
Repayments on senior secured credit facility	(1,090,666)	(815,100)	(1,371,000)
Net proceeds from issuance of Alkali senior secured notes	0	408,000	0
Redemption of redeemable noncontrolling interests	0	(288,629)	0
Proceeds from issuance of senior secured notes	1,093,766	0	259,375
Repayment of senior unsecured notes	(875,969)	(72,241)	(80,859)
Net proceeds from Issuance of Preferred Units	0	0	93,100
Debt issuance costs	(24,765)	(6,019)	(12,348)
Redemption of Class A Convertible Preferred Units (Note 12)	(75,000)	0	0
Contributions from noncontrolling interests	75,240	22,839	703
Distributions to noncontrolling interests	(44,579)	(31,867)	(903)
Distributions to Class A Convertible Preferred unitholders (Note 12)	(93,930)	(74,736)	(74,736)
Distributions to common unitholders (Note 12)	(73,530)	(73,548)	(73,548)
Repurchase of Class A Common Units	(1,044)	0	0
Cash proceeds from the sale of a noncontrolling interest in a subsidiary	0	0	418,140
Other, net	904	1,500	(84)
Net cash provided by (used in) financing activities	73,993	41,699	(65,860)
Net increase (decrease) in cash and cash equivalents and restricted cash	1,471	1,575	(2,026)
Cash and cash equivalents and restricted cash at beginning of period	26,567	24,992	27,018
Cash and cash equivalents and restricted cash at end of period	$ 28,038	$ 26,567	$ 24,992