Consolidated Statements of Stockholders’ Equity - USD ($) $ in Thousands	Total	Natural Gas Swap [Member]	Heating Oil [Member]	Corn Option [Member]	Foreign Exchange Contract [Member]	Parent [Member]	Parent [Member] Natural Gas Swap [Member]	Parent [Member] Heating Oil [Member]	Parent [Member] Corn Option [Member]	Parent [Member] Foreign Exchange Contract [Member]	Common Stock	Additional Paid-In Capital	Treasury Stock	Accumulated Other Comprehensive Loss	Accumulated Other Comprehensive Loss Natural Gas Swap [Member]	Accumulated Other Comprehensive Loss Heating Oil [Member]	Accumulated Other Comprehensive Loss Corn Option [Member]	Accumulated Other Comprehensive Loss Foreign Exchange Contract [Member]	Retained Earnings	Non-controlling Interest
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Adjustment to initially apply FASB ASC No. 2018-02 Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income														$ (4,782)					$ 4,782
Balance (in shares) at Dec. 30, 2017											164,653,437
Stockholders' Equity, Beginning Balance at Dec. 30, 2017	$ 2,327,697					$ 2,244,933					$ 1,679	$ 1,515,614	$ (44,063)	(209,524)					981,227	$ 82,764
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income/(loss)	98,075					97,305													97,305	770
Deductions to noncontrolling interests	(10,173)																			(10,173)
Pension liability adjustments, net of tax	667					667								667
Foreign exchange derivative adjustment, net of tax		$ 22		$ (1,605)			$ 22		$ (1,605)						$ 22		$ (1,605)
Foreign currency translation	17,295					16,778								16,778						517
Stock-based compensation	8,527					8,527						8,527
Treasury stock (in shares)											(159,758)
Treasury stock	(2,962)					(2,962)							(2,962)
Issuance of common stock (in shares)											153,983
Issuance of common stock	1,696					1,696					$ 1	1,695
Balance (in shares) at Mar. 31, 2018											164,647,662
Stockholders' Equity, Ending Balance at Mar. 31, 2018	2,439,239					2,365,361					$ 1,680	1,525,836	(47,025)	(198,444)					1,083,314	73,878
Balance (in shares) at Dec. 30, 2017											164,653,437
Stockholders' Equity, Beginning Balance at Dec. 30, 2017	2,327,697					2,244,933					$ 1,679	1,515,614	(44,063)	(209,524)					981,227	82,764
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income/(loss)	68,937
Foreign exchange derivative adjustment, net of tax		22		(1,158)	$ 0
Foreign currency translation	(59,542)													(59,542)
Balance (in shares) at Jun. 30, 2018											164,653,909
Stockholders' Equity, Ending Balance at Jun. 30, 2018	2,338,031					2,263,403					$ 1,681	1,530,349	(47,403)	(274,118)					1,052,894	74,628
Balance (in shares) at Mar. 31, 2018											164,647,662
Stockholders' Equity, Beginning Balance at Mar. 31, 2018	2,439,239					2,365,361					$ 1,680	1,525,836	(47,025)	(198,444)					1,083,314	73,878
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income/(loss)	(29,138)					(30,420)													(30,420)	1,282
Deductions to noncontrolling interests	(482)																			(482)
Pension liability adjustments, net of tax	666					666								666
Foreign exchange derivative adjustment, net of tax		0		447	0				447								447
Foreign currency translation	(76,837)					(76,787)								(76,787)						(50)
Stock-based compensation	4,219					4,219						4,219
Treasury stock (in shares)											(21,389)
Treasury stock	(378)					(378)							(378)
Issuance of common stock (in shares)											27,636
Issuance of common stock	295					295					$ 1	294
Balance (in shares) at Jun. 30, 2018											164,653,909
Stockholders' Equity, Ending Balance at Jun. 30, 2018	2,338,031					2,263,403					$ 1,681	1,530,349	(47,403)	(274,118)					1,052,894	74,628
Balance (in shares) at Dec. 29, 2018											164,660,598
Stockholders' Equity, Beginning Balance at Dec. 29, 2018	2,335,821					2,273,048					$ 1,681	1,536,157	(47,756)	(304,539)					1,087,505	62,773
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income/(loss)	19,640					18,012													18,012	1,628
Pension liability adjustments, net of tax	858					858								858
Foreign exchange derivative adjustment, net of tax					(1,937)					$ (1,937)								$ (1,937)
Foreign currency translation	(4,886)					(6,645)								(6,645)						1,759
Stock-based compensation	10,403					10,403						10,403
Treasury stock (in shares)											(223,294)
Treasury stock	(5,089)					(5,089)							(5,089)
Issuance of common stock (in shares)											311,502
Issuance of common stock	1,889					1,889					$ 3	1,886
Balance (in shares) at Mar. 30, 2019											164,748,806
Stockholders' Equity, Ending Balance at Mar. 30, 2019	2,356,699					2,290,539					$ 1,684	1,548,446	(52,845)	(312,263)					1,105,517	66,160
Balance (in shares) at Dec. 29, 2018											164,660,598
Stockholders' Equity, Beginning Balance at Dec. 29, 2018	2,335,821					2,273,048					$ 1,681	1,536,157	(47,756)	(304,539)					1,087,505	62,773
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income/(loss)	50,684
Foreign exchange derivative adjustment, net of tax		0		22	(486)
Foreign currency translation	11,440													11,440
Balance (in shares) at Jun. 29, 2019											164,749,050
Stockholders' Equity, Ending Balance at Jun. 29, 2019	2,406,635					2,342,911					$ 1,684	1,552,301	(52,848)	(290,001)					1,131,775	63,724
Balance (in shares) at Mar. 30, 2019											164,748,806
Stockholders' Equity, Beginning Balance at Mar. 30, 2019	2,356,699					2,290,539					$ 1,684	1,548,446	(52,845)	(312,263)					1,105,517	66,160
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income/(loss)	31,044					26,258													26,258	4,786
Deductions to noncontrolling interests	(5,751)																			(5,751)
Pension liability adjustments, net of tax	859					859								859
Foreign exchange derivative adjustment, net of tax		$ 0	$ 2,133	$ 22	$ 1,451			$ 2,133	$ 22	$ 1,451						$ 2,133	$ 22	$ 1,451
Foreign currency translation	16,326					17,797								17,797						(1,471)
Stock-based compensation	3,849					3,849						3,849
Treasury stock (in shares)											(131)
Treasury stock	(3)					(3)							(3)
Issuance of common stock (in shares)											375
Issuance of common stock	6					6					$ 0	6
Balance (in shares) at Jun. 29, 2019											164,749,050
Stockholders' Equity, Ending Balance at Jun. 29, 2019	$ 2,406,635					$ 2,342,911					$ 1,684	$ 1,552,301	$ (52,848)	$ (290,001)					$ 1,131,775	$ 63,724