Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 28, 2020	Mar. 30, 2019
Net income	$ 86,091	$ 19,640
Other comprehensive income/(loss), net of tax:
Foreign currency translation	(65,236)	(4,886)
Pension adjustments	648	858
Net current-period other comprehensive income	(62,733)	(5,965)
Total comprehensive income	23,358	13,675
Comprehensive income attributable to noncontrolling interests	492	3,387
Comprehensive income attributable to Darling	22,866	10,288
Corn Option [Member]
Other comprehensive income/(loss), net of tax:
Derivative adjustments	136	0
Heating Oil Swaps And Options [Member]
Other comprehensive income/(loss), net of tax:
Derivative adjustments	10,870	0
Foreign Exchange Contract [Member]
Other comprehensive income/(loss), net of tax:
Derivative adjustments	(9,151)	(1,937)
Parent [Member]
Net income	85,510	18,012
Other comprehensive income/(loss), net of tax:
Foreign currency translation	(65,147)	(6,645)
Parent [Member] | Corn Option [Member]
Other comprehensive income/(loss), net of tax:
Derivative adjustments	136
Parent [Member] | Foreign Exchange Contract [Member]
Other comprehensive income/(loss), net of tax:
Derivative adjustments	$ (9,151)	$ (1,937)