Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Net income	$ 320,967	$ 105,944	$ 133,354
Other comprehensive income (Loss), net of tax:
Foreign currency translation adjustments	(11,934)	(87,474)	121,810
Pension adjustments	1,535	(2,730)	5,829
Total other comprehensive income/(loss), net of tax	(16,985)	(90,787)	126,543
Total comprehensive income	303,982	15,157	259,897
Comprehensive income attributable to noncontrolling interests	8,690	3,894	947
Comprehensive income/(loss) attributable to Darling	295,292	11,263	258,950
Natural Gas Swap [Member]
Other comprehensive income (Loss), net of tax:
Total derivatives, net of tax	0	23	(18)
Corn Option [Member]
Other comprehensive income (Loss), net of tax:
Total derivatives, net of tax	278	(1,687)	(1,078)
Heating Oil Swaps And Options [Member]
Other comprehensive income (Loss), net of tax:
Total derivatives, net of tax	(3,141)	0	0
Foreign Exchange Contract [Member]
Other comprehensive income (Loss), net of tax:
Total derivatives, net of tax	$ (3,723)	$ 1,081	$ 0