UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
CURRENT ASSETS:
Cash and cash equivalents	$ 21,101	$ 7,930
Restricted cash	18,804	18,637
Accounts receivable - trade, net	871,298	721,567
Inventories	126,946	78,143
Other	53,396	26,770
Total current assets	1,091,545	853,047
FIXED ASSETS, at cost	6,248,511	5,865,038
Less: Accumulated depreciation	(1,925,879)	(1,768,465)
Net fixed assets	4,322,632	4,096,573
MINERAL LEASEHOLDS, net of accumulated depletion	541,866	545,122
EQUITY INVESTEES	270,294	284,486
INTANGIBLE ASSETS, net of amortization	141,703	127,320
GOODWILL	301,959	301,959
RIGHT OF USE ASSETS, net	229,785	125,277
OTHER ASSETS, net of amortization	38,658	32,208
TOTAL ASSETS	6,938,442	6,365,992
CURRENT LIABILITIES:
Accounts payable - trade	660,577	427,961
Accrued liabilities	363,136	281,146
Total current liabilities	1,023,713	709,107
SENIOR SECURED CREDIT FACILITY	198,400	205,400
SENIOR UNSECURED NOTES, net of debt issuance costs and premium	3,011,386	2,856,312
DEFERRED TAX LIABILITIES	17,577	16,652
OTHER LONG-TERM LIABILITIES	541,373	400,617
Total liabilities	5,186,769	4,590,530
MEZZANINE CAPITAL:
Class A Convertible Preferred Units, 23,853,538 and 25,336,778 issued and outstanding at September 30, 2023 and December 31, 2022, respectively	$ 839,695	$ 891,909
Common units outstanding (in units)	122,464,318	122,579,218
PARTNERS’ CAPITAL:
Common unitholders, 122,464,318 and 122,579,218 units issued and outstanding at September 30, 2023 and December 31, 2022, respectively	$ 547,622	$ 567,277
Accumulated other comprehensive income	6,479	6,114
Noncontrolling interests	357,877	310,162
Total partners’ capital	911,978	883,553
TOTAL LIABILITIES, MEZZANINE CAPITAL AND PARTNERS’ CAPITAL	$ 6,938,442	$ 6,365,992
Common units issued (in units)	122,464,318	122,579,218
Class A Convertible Preferred Stock Units
PARTNERS’ CAPITAL:
Number preferred units issued (in units)	23,853,538	25,336,778
5.875% Alkali senior secured notes due 2042(2)
CURRENT LIABILITIES:
SENIOR SECURED CREDIT FACILITY	$ 394,320	$ 402,442