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Debt (Senior Secured Credit Facilities) (Details) $ in Millions	6 Months Ended
	Jun. 30, 2018 USD ($)	Jun. 30, 2018 CAD ($)	Jun. 30, 2018 EUR (€)	Dec. 30, 2017 USD ($)	Jun. 03, 2015 EUR (€)
Canadian Dealer Offered Rate (CDOR) [Member] \| Canada, Dollars
Debt Instrument [Line Items]
Interest rate	3.7497%	3.7497%	3.7497%
Senior Secured Facilities [Member]
Debt Instrument [Line Items]
Line of credit term	5 years
Secured Debt [Member] \| Canadian Dealer Offered Rate (CDOR) [Member] \| Canada, Dollars
Debt Instrument [Line Items]
Basis spread on variable rate	2.00%
Secured Debt [Member] \| Senior Secured Facilities [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	2.00%
Interest rate	4.10%	4.10%	4.10%
Secured Debt [Member] \| Senior Secured Facilities [Member] \| Euro Interbank Offered Rate [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	2.00%
Interest rate	2.00%	2.00%	2.00%
Term Loan A Facility [Member] \| Senior Secured Facilities [Member]
Debt Instrument [Line Items]
Face amount of debt instrument	$ 350,000,000
Term Loan A Facility [Member] \| Senior Secured Facilities [Member] \| Canada, Dollars
Debt Instrument [Line Items]
Line of credit outstanding	45,000,000	$ 59.6		$ 53,100,000
Term Loan A Facility [Member] \| Senior Secured Facilities [Member] \| U.S. dollar
Debt Instrument [Line Items]
Line of credit outstanding	43,300,000
Revolving Credit Facility [Member] \| Senior Secured Facilities [Member]
Debt Instrument [Line Items]
Line of credit, maximum borrowing capacity	1,000,000,000.00
Company availability under revolving loan facility	$ 950,400,000
Revolving Credit Facility [Member] \| Senior Secured Facilities [Member] \| Euro
Debt Instrument [Line Items]
Line of credit outstanding \| €			€ 22,000,000
Revolving Credit Facility [Member] \| Senior Secured Facilities [Member] \| London Interbank Offered Rate (LIBOR) [Member] \| Euro
Debt Instrument [Line Items]
Line of credit outstanding \| €			€ 22,000,000
Letter of Credit [Member] \| Senior Secured Facilities [Member]
Debt Instrument [Line Items]
Springing adjustment, term	91 days
Line of credit, maximum borrowing capacity	$ 150,000,000.0
Line of credit outstanding	24,000,000
Swingline Sub-Facility [Member] \| Senior Secured Facilities [Member]
Debt Instrument [Line Items]
Line of credit, maximum borrowing capacity	$ 50,000,000.0
Term Loan B Facility [Member] \| Senior Secured Facilities [Member]
Debt Instrument [Line Items]
Springing adjustment, loans outstanding, period	91 days
Face amount of debt instrument	$ 525,000,000.0
Term Loan B Facility [Member] \| Senior Secured Facilities [Member] \| U.S. dollar
Debt Instrument [Line Items]
Line of credit outstanding	$ 485,000,000
Term Loan B Facility [Member] \| Senior Secured Facilities [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	2.00%
Interest rate	4.10%	4.10%	4.10%
Term Loan B Facility [Member] \| Senior Secured Facilities [Member] \| Base Rate [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.00%
Interest rate	6.00%	6.00%	6.00%
Term Loan B Facility [Member] \| Senior Secured Facilities [Member] \| Base Rate [Member] \| U.S. dollar
Debt Instrument [Line Items]
Line of credit outstanding	$ 10,000,000
Foreign Line of Credit [Member] \| Senior Secured Facilities [Member]
Debt Instrument [Line Items]
Line of credit outstanding	18,700,000
Senior Notes [Member] \| Senior Notes 4.75% Due 2022 [Member]
Debt Instrument [Line Items]
Face amount of debt instrument \| €					€ 515,000,000.0
Secured Debt [Member] \| Senior Secured Facilities [Member]
Debt Instrument [Line Items]
Line of credit, maximum borrowing capacity	$ 1,875,000,000.0000
Secured Debt [Member] \| Term Loan A Facility [Member] \| Senior Secured Facilities [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	2.00%
Secured Debt [Member] \| Term Loan A Facility [Member] \| Senior Secured Facilities [Member] \| Canadian Prime Rate [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.00%
Secured Debt [Member] \| Revolving Credit Facility [Member] \| Senior Secured Facilities [Member]
Debt Instrument [Line Items]
Company availability under revolving loan facility	$ 948,300,000.0
Secured Debt [Member] \| Term Loan B Facility [Member] \| Senior Secured Facilities [Member] \| London Interbank Offered Rate (LIBOR) [Member] \| U.S. dollar
Debt Instrument [Line Items]
Basis spread on variable rate	2.00%
Secured Debt [Member] \| Term Loan B Facility [Member] \| Senior Secured Facilities [Member] \| Base Rate [Member] \| U.S. dollar
Debt Instrument [Line Items]
Basis spread on variable rate	1.00%
Maximum [Member] \| Letter of Credit [Member] \| Senior Secured Facilities [Member]
Debt Instrument [Line Items]
Debt Instrument, Covenant, Leverage Ratio	5.50	5.50	5.50
Minimum [Member] \| Letter of Credit [Member] \| Senior Secured Facilities [Member]
Debt Instrument [Line Items]
Debt Instrument, Covenant, Interest Ratio	3.0	3.0	3.0