v3.25.1
Other Comprehensive Income (Reclassification out of AOCI) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 29, 2025
Mar. 30, 2024
Reclassification out of Accumulated Other Comprehensive Income [Line Items]    
Net sales $ 1,380,594 $ 1,420,299
Cost of sales and operating expenses (excludes depreciation and amortization, shown separately below) 1,069,243 1,116,666
Income taxes 1,154 (3,907)
Amortization of prior service cost (2) (6)
Amortization of actuarial loss 249 349
Net income attributable to Darling (26,160) 81,157
Reclassification out of Accumulated Other Comprehensive Income [Member]    
Reclassification out of Accumulated Other Comprehensive Income [Line Items]    
Net income attributable to Darling (11,431) 16,945
Reclassification out of Accumulated Other Comprehensive Income [Member] | Derivative Instruments    
Reclassification out of Accumulated Other Comprehensive Income [Line Items]    
Total before tax (14,398) 23,509
Income taxes 3,156 (6,302)
Net income attributable to Darling (11,242) 17,207
Reclassification out of Accumulated Other Comprehensive Income [Member] | Derivative Instruments | Soybean Meal    
Reclassification out of Accumulated Other Comprehensive Income [Line Items]    
Net sales 0 33
Reclassification out of Accumulated Other Comprehensive Income [Member] | Derivative Instruments | Foreign Exchange Contract    
Reclassification out of Accumulated Other Comprehensive Income [Line Items]    
Net sales 3,662 5,996
Reclassification out of Accumulated Other Comprehensive Income [Member] | Derivative Instruments | Corn Option    
Reclassification out of Accumulated Other Comprehensive Income [Line Items]    
Cost of sales and operating expenses (excludes depreciation and amortization, shown separately below) (367) 0
Reclassification out of Accumulated Other Comprehensive Income [Member] | Derivative Instruments | Interest Rate Swap    
Reclassification out of Accumulated Other Comprehensive Income [Line Items]    
Foreign currency gain/(loss) (17,693) 17,480
Reclassification out of Accumulated Other Comprehensive Income [Member] | Foreign Currency Translation    
Reclassification out of Accumulated Other Comprehensive Income [Line Items]    
Total before tax (247) (343)
Income taxes 58 81
Amortization of prior service cost 2 6
Amortization of actuarial loss (249) (349)
Net income attributable to Darling $ (189) $ (262)