Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
Mar. 30, 2019	Mar. 31, 2018
Income Statement [Abstract]
Net sales	$ 835,104	$ 875,374
Costs and expenses:
Cost of sales and operating expenses	646,663	678,099
Selling, general and administrative expenses	85,003	86,902
Depreciation and amortization	79,164	78,619
Total costs and expenses	810,830	843,620
Operating income	24,274	31,754
Other expense:
Interest expense	(19,876)	(23,124)
Foreign currency loss	(732)	(1,481)
Gain/(loss) on disposal of subsidiaries	0
Other expense, net	(2,525)	(2,516)
Total other expense	(23,133)	(27,121)
Equity in net income of unconsolidated subsidiaries	23,773	97,154
Income before income taxes	24,914	101,787
Income tax expense	5,274	3,712
Net income	19,640	98,075
Net income attributable to noncontrolling interests	(1,628)	(770)
Net income attributable to Darling	$ 18,012	$ 97,305
Basic income per share (in dollars per share)	$ 0.11	$ 0.59
Diluted income per share (in dollars per share)	$ 0.11	$ 0.58

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

Name:	us-gaap_CostOfGoodsAndServicesSold
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Total costs of sales and operating expenses for the period.