Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 30, 2019	Mar. 31, 2018
Net income	$ 19,640	$ 98,075
Other comprehensive income/(loss), net of tax:
Foreign currency translation	(4,886)	17,295
Pension adjustments	858	667
Derivative adjustments	(1,937)
Net current-period other comprehensive income	(5,965)	16,379
Total comprehensive income	13,675	114,454
Comprehensive income attributable to noncontrolling interests	3,387	1,287
Comprehensive income attributable to Darling	10,288	113,167
Natural Gas Swap [Member]
Other comprehensive income/(loss), net of tax:
Derivative adjustments	0	22
Corn Option [Member]
Other comprehensive income/(loss), net of tax:
Derivative adjustments	0	(1,605)
Foreign Exchange Contract [Member]
Other comprehensive income/(loss), net of tax:
Derivative adjustments	(1,937)	0
Parent [Member]
Net income	18,012	97,305
Other comprehensive income/(loss), net of tax:
Foreign currency translation	(6,645)	$ 16,778
Derivative adjustments	$ (1,937)