v3.25.4
CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($)
shares in Thousands, $ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Income Statement [Abstract]      
Net sales $ 606,038 $ 525,324 $ 681,477
Operating costs and expenses:      
Cost of materials and other 106,743 104,141 134,377
Direct operating expenses (exclusive of depreciation and amortization) 254,058 214,222 234,916
Depreciation and amortization 81,867 88,096 79,720
Cost of sales 442,668 406,459 449,013
Selling, general and administrative expenses 33,594 28,414 29,523
Loss on asset disposals 1,118 100 1,533
Operating income 128,658 90,351 201,408
Other (expense) income:      
Interest expense, net (30,345) (29,827) (28,653)
Other income (expense), net 326 453 (33)
Income before income taxes 98,639 60,977 172,722
Income tax (benefit) expense (23) 77 289
Net income $ 98,662 $ 60,900 $ 172,433
Basic earnings per common unit (in dollars per unit) $ 9.33 $ 5.76 $ 16.31
Diluted earnings per common unit (in dollars per unit) $ 9.33 $ 5.76 $ 16.31
Weighted-average common units outstanding:      
Basic (in units) 10,570 10,570 10,570
Diluted (in units) 10,570 10,570 10,570