Consolidated Statements of Operations - USD ($) $ in Thousands	1 Months Ended	3 Months Ended	6 Months Ended
May 31, 2018	Jun. 30, 2018	Jul. 01, 2017	Jun. 30, 2018	Jul. 01, 2017
Income Statement [Abstract]
Net sales		$ 846,646	$ 894,930	$ 1,722,020	$ 1,773,440
Costs and expenses:
Cost of sales and operating expenses		653,001	699,244	1,331,100	1,387,210
Selling, general and administrative expenses		78,558	84,532	165,460	171,455
Restructuring and impairment charges		14,965	0	14,965	0
Depreciation and amortization		78,454	72,990	157,073	144,104
Total costs and expenses		824,978	856,766	1,668,598	1,702,769
Operating income		21,668	38,164	53,422	70,671
Other expense:
Interest expense		(23,016)	(22,446)	(46,140)	(44,126)
Debt extinguishment costs		(23,509)	0	(23,509)	0
Foreign currency loss		(3,495)	(2,111)	(4,976)	(2,375)
Loss on sale of subsidiary	$ (15,500)	(15,538)	0	(15,538)	0
Other income/(expense), net		1,199	(3,797)	(1,317)	(5,850)
Total other expense		(64,359)	(28,354)	(91,480)	(52,351)
Equity in net income of unconsolidated subsidiaries		15,236	8,260	112,390	8,966
Income/(loss) before income taxes		(27,455)	18,070	74,332	27,286
Income tax expense		1,683	7,742	5,395	9,560
Net income/(loss)		(29,138)	10,328	68,937	17,726
Net income attributable to noncontrolling interests		(1,282)	(1,179)	(2,052)	(2,748)
Net income/(loss) attributable to Darling		$ (30,420)	$ 9,149	$ 66,885	$ 14,978
Basic income per share (in dollars per share)		$ (0.18)	$ 0.06	$ 0.41	$ 0.09
Diluted income per share (in dollars per share)		$ (0.18)	$ 0.05	$ 0.40	$ 0.09

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.