Other Comprehensive Income (Schedule of AOCI) (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2023 USD ($)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Accumulated Other Comprehensive loss December 31, 2022, attributable to Darling, net of tax	$ (383,874)
Other comprehensive loss before reclassifications	81,093
Amounts reclassified from accumulated other comprehensive loss	(31,923)
Net current-period other comprehensive income	49,170
Noncontrolling interest	(2,291)
Accumulated Other Comprehensive loss September 30, 2023, attributable to Darling, net of tax	(332,413)
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Accumulated Other Comprehensive loss December 31, 2022, attributable to Darling, net of tax	(374,368)
Other comprehensive loss before reclassifications	57,312
Amounts reclassified from accumulated other comprehensive loss	0
Net current-period other comprehensive income	57,312
Noncontrolling interest	(2,291)
Accumulated Other Comprehensive loss September 30, 2023, attributable to Darling, net of tax	(314,765)
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Accumulated Other Comprehensive loss December 31, 2022, attributable to Darling, net of tax	7,176
Other comprehensive loss before reclassifications	23,781
Amounts reclassified from accumulated other comprehensive loss	(32,904)
Net current-period other comprehensive income	(9,123)
Noncontrolling interest	0
Accumulated Other Comprehensive loss September 30, 2023, attributable to Darling, net of tax	(1,947)
Defined Benefit Pension Plans [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Accumulated Other Comprehensive loss December 31, 2022, attributable to Darling, net of tax	(16,682)
Other comprehensive loss before reclassifications	0
Amounts reclassified from accumulated other comprehensive loss	981
Net current-period other comprehensive income	981
Noncontrolling interest	0
Accumulated Other Comprehensive loss September 30, 2023, attributable to Darling, net of tax	$ (15,701)