UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
CURRENT ASSETS:
Cash and cash equivalents	$ 11,506	$ 7,930
Restricted cash	18,804	18,637
Accounts receivable - trade, net	774,086	721,567
Inventories	117,852	78,143
Other	43,446	26,770
Total current assets	965,694	853,047
FIXED ASSETS, at cost	6,059,542	5,865,038
Less: Accumulated depreciation	(1,875,840)	(1,768,465)
Net fixed assets	4,183,702	4,096,573
MINERAL LEASEHOLDS, net of accumulated depletion	542,973	545,122
EQUITY INVESTEES	274,233	284,486
INTANGIBLE ASSETS, net of amortization	138,280	127,320
GOODWILL	301,959	301,959
RIGHT OF USE ASSETS, net	223,179	125,277
OTHER ASSETS, net of amortization	39,439	32,208
TOTAL ASSETS	6,669,459	6,365,992
CURRENT LIABILITIES:
Accounts payable - trade	524,268	427,961
Accrued liabilities	333,712	281,146
Total current liabilities	857,980	709,107
SENIOR SECURED CREDIT FACILITY	133,600	205,400
SENIOR UNSECURED NOTES, net of debt issuance costs and premium	3,009,850	2,856,312
DEFERRED TAX LIABILITIES	17,203	16,652
OTHER LONG-TERM LIABILITIES	516,143	400,617
Total liabilities	4,931,784	4,590,530
MEZZANINE CAPITAL:
Class A Convertible Preferred Units, 24,595,158 and 25,336,778 issued and outstanding at June 30, 2023 and December 31, 2022, respectively.	865,802	891,909
PARTNERS’ CAPITAL:
Common unitholders, 122,579,218 units issued and outstanding at June 30, 2023 and December 31, 2022	531,291	567,277
Accumulated other comprehensive income	6,357	6,114
Noncontrolling interests	334,225	310,162
Total partners’ capital	871,873	883,553
TOTAL LIABILITIES, MEZZANINE CAPITAL AND PARTNERS’ CAPITAL	$ 6,669,459	$ 6,365,992
Class A Convertible Preferred Stock Units
PARTNERS’ CAPITAL:
Number preferred units issued (in units)	24,595,158
Redeemable Noncontrolling Interest Preferred Units
PARTNERS’ CAPITAL:
Number preferred units issued (in units)		25,336,778
5.875% Alkali senior secured notes due 2042(2)
CURRENT LIABILITIES:
SENIOR SECURED CREDIT FACILITY	$ 397,008	$ 402,442