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Debt (Schedule of Long-term Debt) (Details) $ in Millions	6 Months Ended
Debt (Schedule of Long-term Debt) (Details) $ in Millions	Jun. 30, 2018 USD ($)	Jun. 30, 2018 CAD ($)	Jun. 30, 2018 EUR (€)	May 02, 2018 EUR (€)	Dec. 30, 2017 USD ($)	Jun. 03, 2015 EUR (€)	Jan. 02, 2014 USD ($)
Debt Instrument [Line Items]
Debt and Capital Lease Obligations	$ 1,695,289,000				$ 1,714,193,000
Current portion of long-term debt	7,466,000				16,143,000
Long-term debt, net of current portion	$ 1,687,823,000				1,698,050,000
Capital lease obligations, current		$ 0.5	€ 100,000
Capital lease obligations, noncurrent		$ 0.3	€ 100,000
Debt instrument, interest rate, effective percentage	5.10%	5.10%	5.10%
Term Loan A Facility [Member] \| Senior Secured Facilities [Member]
Debt Instrument [Line Items]
Long-term Debt	$ 87,670,000				95,694,000
Long-term Debt, Gross	88,210,000				96,365,000
Unamortized Debt Issuance Expense	(540,000)				(671,000)
Term Loan B Facility [Member] \| Senior Secured Facilities [Member]
Debt Instrument [Line Items]
Long-term Debt	485,300,000				494,422,000
Long-term Debt, Gross	495,000,000				505,000,000
Unamortized Debt Issuance Expense	(9,700,000)				(10,578,000)
Senior Notes [Member] \| Senior Notes 5.375% Due 2022 [Member]
Debt Instrument [Line Items]
Long-term Debt	494,397,000				493,362,000
Long-term Debt, Gross	500,000,000				500,000,000
Unamortized Debt Issuance Expense	$ (5,603,000)				(6,638,000)
Stated interest rate	5.375%	5.375%	5.375%				5.375%
Debt instrument, interest rate, effective percentage	5.72%	5.72%	5.72%
Face amount of debt instrument							$ 500,000,000
Senior Notes [Member] \| Senior Notes 3.625% Due 2026 [Member]
Debt Instrument [Line Items]
Long-term Debt	$ 591,581,000				0
Long-term Debt, Gross	600,001,000				0
Unamortized Debt Issuance Expense	$ (8,420,000)				0
Line of credit outstanding \| €			€ 515,000,000
Stated interest rate	3.625%	3.625%	3.625%	3.625%
Face amount of debt instrument \| €				€ 515,000,000
Senior Notes [Member] \| Senior Notes 4.75% Due 2022 [Member]
Debt Instrument [Line Items]
Long-term Debt	$ 0				608,681,000
Long-term Debt, Gross	0				617,356,000
Unamortized Debt Issuance Expense	$ 0				(8,675,000)
Stated interest rate	4.75%	4.75%	4.75%			4.75%
Debt instrument, interest rate, effective percentage	3.83%	3.83%	3.83%
Face amount of debt instrument \| €						€ 515,000,000.0
Notes Payable, Other Payables [Member]
Debt Instrument [Line Items]
Long-term Debt	$ 10,710,000				22,034,000
Letter of Credit [Member] \| Senior Secured Facilities [Member]
Debt Instrument [Line Items]
Line of credit outstanding	24,000,000
Revolving Credit Facility [Member] \| Line of Credit [Member] \| Senior Secured Facilities [Member]
Debt Instrument [Line Items]
Long-term Debt	25,631,000				0
Term Loan A Facility [Member] \| Senior Secured Facilities [Member]
Debt Instrument [Line Items]
Face amount of debt instrument	350,000,000
Term Loan B Facility [Member] \| Senior Secured Facilities [Member]
Debt Instrument [Line Items]
Face amount of debt instrument	525,000,000.0
Canada, Dollars \| Term Loan A Facility [Member] \| Senior Secured Facilities [Member]
Debt Instrument [Line Items]
Line of credit outstanding	45,000,000	$ 59.6			53,100,000
Euro Member Countries, Euro \| Revolving Credit Facility [Member] \| Senior Secured Facilities [Member]
Debt Instrument [Line Items]
Line of credit outstanding \| €			€ 22,000,000
Euro Member Countries, Euro \| Revolving Credit Facility [Member] \| Line of Credit [Member] \| Senior Secured Facilities [Member]
Debt Instrument [Line Items]
Long-term Debt	25,600,000				$ 0
U.S. dollar \| Term Loan A Facility [Member] \| Senior Secured Facilities [Member]
Debt Instrument [Line Items]
Line of credit outstanding	43,300,000
U.S. dollar \| Term Loan B Facility [Member] \| Senior Secured Facilities [Member]
Debt Instrument [Line Items]
Line of credit outstanding	$ 485,000,000
Canadian Dealer Offered Rate (CDOR) [Member] \| Canada, Dollars
Debt Instrument [Line Items]
Interest rate	3.7497%	3.7497%	3.7497%
Canadian Dealer Offered Rate (CDOR) [Member] \| Canada, Dollars \| Secured Debt [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	2.00%
London Interbank Offered Rate (LIBOR) [Member] \| Secured Debt [Member] \| Senior Secured Facilities [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	2.00%
Interest rate	4.10%	4.10%	4.10%
London Interbank Offered Rate (LIBOR) [Member] \| Term Loan B Facility [Member] \| Senior Secured Facilities [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	2.00%
Interest rate	4.10%	4.10%	4.10%
London Interbank Offered Rate (LIBOR) [Member] \| Euro Member Countries, Euro \| Revolving Credit Facility [Member] \| Senior Secured Facilities [Member]
Debt Instrument [Line Items]
Line of credit outstanding \| €			€ 22,000,000
Base Rate [Member] \| Term Loan B Facility [Member] \| Senior Secured Facilities [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.00%
Interest rate	6.00%	6.00%	6.00%
Base Rate [Member] \| U.S. dollar \| Term Loan B Facility [Member] \| Senior Secured Facilities [Member]
Debt Instrument [Line Items]
Line of credit outstanding	$ 10,000,000