General (Details)	3 Months Ended								12 Months Ended
	Dec. 29, 2018 USD ($) segment Facility continent $ / shares	Sep. 29, 2018 $ / shares	Jun. 30, 2018 $ / shares	Mar. 31, 2018 $ / shares	Dec. 31, 2016 USD ($) $ / shares	Oct. 01, 2016 $ / shares	Jul. 02, 2016 $ / shares	Apr. 02, 2016 $ / shares	Dec. 29, 2018 USD ($) weeks segment Facility continent $ / shares shares	Dec. 30, 2017 USD ($) weeks $ / shares shares	Dec. 31, 2016 USD ($) weeks $ / shares shares	Oct. 05, 2018 USD ($)	May 31, 2018 USD ($)	Jan. 02, 2016 USD ($)
General [Line Items]
Financing Receivable, Significant Sales									$ 113,500,000	$ 0	$ 0
Cash and cash equivalents	$ 107,262,000								107,262,000	106,774,000
Income tax expense/(benefit)									$ 12,031,000	$ (69,154,000)	$ 15,315,000
Expected Business Combination, Number of Continents in which Entity Operates | continent	5								5
Number of Operating Segments | segment	3								3
Accounting Policies [Abstract]
Number Of Weeks Year To Date | weeks									52	52	52
Cash and Cash Equivalents [Abstract]
Investments Classified As Cash Equivalents, Original Maturity									3 months
Goodwill [Abstract]
Goodwill	$ 1,229,159,000				$ 1,225,893,000				$ 1,229,159,000	$ 1,301,093,000	$ 1,225,893,000	$ 8,000,000	$ 19,600,000
Basic:
Net income									$ 101,496,000	$ 128,468,000	$ 102,313,000
Shares (in shares) | shares									164,789,000	164,752,000	164,600,000
Basic (in dollars per share) | $ / shares	$ 0.25	$ (0.04)	$ (0.18)	$ 0.59	$ 0.64	$ 0.05	$ 0.06	$ 0.04	$ 0.62	$ 0.78	$ 0.62
Effect of dilutive securities: [Abstract]
Add: Option shares in the money and dilutive effect of nonvested stock (in shares) | shares									5,234,000	3,865,000	1,329,000
Less: Pro-forma treasury shares (in shares) | shares									(2,113,000)	(1,887,000)	(717,000)
Diluted:
Net Income									$ 101,496,000	$ 128,468,000	$ 102,313,000
Shares (in shares) | shares									167,910,000	166,730,000	165,212,000
Diluted (in dollars per share) | $ / shares	$ 0.24	$ (0.04)	$ (0.18)	$ 0.58	$ 0.63	$ 0.05	$ 0.05	$ 0.04	$ 0.60	$ 0.77	$ 0.62
Stock Based Compensation [Abstract]
Stock-based compensation expense									$ 18,800,000	$ 17,600,000	$ 10,300,000
Employee service share-based compensation, tax benefit from compensation expense									3,900,000	3,700,000	3,400,000
Foreign currency translation									(86,900,000)	125,700,000	(3,700,000)
Restricted Cash and Cash Equivalents	$ 107,000								107,000	142,000
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	$ 107,369,000				$ 114,857,000				107,369,000	$ 106,916,000	$ 114,857,000			$ 157,215,000
Financing Receivable, Significant Sales, Transaction Fees									$ 600,000
Stock Options [Member]
Antidilutive Securities [Abstract]
Antidilutive securities excluded from computation of earnings per share, amount | shares									693,172	340,504	1,148,707
Non Vested Stock [Member]
Antidilutive Securities [Abstract]
Antidilutive securities excluded from computation of earnings per share, amount | shares									502,292	288,616	758,557
Minimum [Member]
General [Line Items]
Number of Processing and Transfer Facilities | Facility	200								200
Accounting Policies [Abstract]
Number Of Weeks Year To Date | weeks									52
Minimum [Member] | Buildings and improvements [Member]
Long Lived Assets [Abstract]
Property, Plant and Equipment, Useful Life									15 years
Minimum [Member] | Machinery and equipment [Member]
Long Lived Assets [Abstract]
Property, Plant and Equipment, Useful Life									3 years
Minimum [Member] | Vehicles [Member]
Long Lived Assets [Abstract]
Property, Plant and Equipment, Useful Life									3 years
Minimum [Member] | Aircraft [Member]
Long Lived Assets [Abstract]
Property, Plant and Equipment, Useful Life									7 years
Minimum [Member] | Routes [Member]
Long Lived Assets [Abstract]
Finite-Lived Intangible Assets, Useful Life									5 years
Minimum [Member] | Permits [Member]
Long Lived Assets [Abstract]
Finite-Lived Intangible Assets, Useful Life									10 years
Minimum [Member] | Non-compete agreements [Member]
Long Lived Assets [Abstract]
Finite-Lived Intangible Assets, Useful Life									3 years
Minimum [Member] | Trade Names [Member]
Long Lived Assets [Abstract]
Finite-Lived Intangible Assets, Useful Life									4 years
Maximum [Member]
Accounting Policies [Abstract]
Number Of Weeks Year To Date | weeks									53
Maximum [Member] | Buildings and improvements [Member]
Long Lived Assets [Abstract]
Property, Plant and Equipment, Useful Life									30 years
Maximum [Member] | Machinery and equipment [Member]
Long Lived Assets [Abstract]
Property, Plant and Equipment, Useful Life									10 years
Maximum [Member] | Vehicles [Member]
Long Lived Assets [Abstract]
Property, Plant and Equipment, Useful Life									8 years
Maximum [Member] | Aircraft [Member]
Long Lived Assets [Abstract]
Property, Plant and Equipment, Useful Life									10 years
Maximum [Member] | Routes [Member]
Long Lived Assets [Abstract]
Finite-Lived Intangible Assets, Useful Life									21 years
Maximum [Member] | Permits [Member]
Long Lived Assets [Abstract]
Finite-Lived Intangible Assets, Useful Life									20 years
Maximum [Member] | Non-compete agreements [Member]
Long Lived Assets [Abstract]
Finite-Lived Intangible Assets, Useful Life									7 years
Maximum [Member] | Trade Names [Member]
Long Lived Assets [Abstract]
Finite-Lived Intangible Assets, Useful Life									15 years