v3.26.1
Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Cash flows from operating activities    
Net income $ 81,655 $ 42,309
Adjustments to reconcile net income to net cash provided by operating activities    
Depreciation and amortization 34,299 27,068
Loss from disposition of property, plant and equipment 61 103
Other losses, net 70 137
Changes in operating assets and liabilities    
Accounts receivable—third parties (10,761) (1,553)
Net accounts receivable—Westlake 8,000 (1,164)
Inventories (324) 1,325
Prepaid expenses and other current assets 187 243
Accounts payable—third parties (290) 36,942
Accrued and other liabilities (2,208) 45,892
Deferred charges and other assets and others, net (491) (105,521)
Net cash provided by operating activities 110,198 45,781
Cash flows from investing activities    
Additions to property, plant and equipment (5,556) (15,956)
Investments with Westlake under the Investment Management Agreement (13,000) 0
Maturities of investments with Westlake under the Investment Management Agreement 0 30,000
Net cash provided by (used for) investing activities (18,556) 14,044
Cash flows from financing activities    
Proceeds from debt payable to Westlake 40,500 54,000
Repayment of debt payable to Westlake (40,500) (54,000)
Distributions to noncontrolling interest retained in OpCo by Westlake (75,006) (51,906)
Distributions to unitholders (16,615) (16,611)
Net cash used for financing activities (91,621) (68,517)
Net increase (decrease) in cash and cash equivalents 21 (8,692)
Cash and cash equivalents at beginning of period 44,269 58,316
Cash and cash equivalents at end of period $ 44,290 $ 49,624