Financing Arrangements - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 30, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Line of Credit Facility, Outstanding Amount, USD Borrowings	$ 1,015,500
Line of Credit Facility, Amount Outstanding, GBP Borrowings	$ 7,400
Debt Instrument, Interest Coverage Ratio Range, Low	300.00%
Debt Instrument, Interest Coverage Ratio Range, High	100.00%
Debt Instrument, Leverage Ratio Range, Low	350.00%
Debt Instrument, Leverage Ratio Range, High	100.00%
Maximum borrowing capacity	$ 2,500,000
Senior secured revolving credit line	1,022,935	$ 725,500
Letters of credit outstanding	7,500
Remaining borrowing capacity	$ 1,500,000
Credit facility, average interest rate	2.72%
Variable commitment fee	0.20%
Long-term line of credit	$ 1,022,935	725,500
Carrying Value	$ 1,028,881	$ 732,126
Credit facility, additional interest rate above LIBOR	1.25%
Interest rate at period end	6.06%
Line of credit, Current and Noncurrent, Foreign	$ 5,800
Line of Credit Facility, Potential Additional Borrowing Capacity	$ 3,000,000
Debt Instrument, Qualified Leverage Ratio Range, Low	400.00%
Debt Instrument, Qualified Leverage Ratio Range, High	100.00%
Debt Instrument Interest Additional Interest Above Fed Funds Rate	0.50%
Debt Instrument, Interest Rate, Increase (Decrease)	1.00%
Derivative Notional Amount, NonCurrent	$ 399,000
Derivative Fixed Interest Rate, NonCurrent	1.47%