Other Comprehensive Earnings (Loss) - Gains (Losses) on Derivative Instruments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jul. 01, 2018	Jun. 30, 2019	Jul. 01, 2018	Dec. 30, 2018	Dec. 31, 2017
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Accumulated other comprehensive loss	$ (173,175)	$ (295,076)	$ (173,175)	$ (295,076)	$ (294,514)	$ (239,425)
Interest expense	22,018	22,803	44,332	45,612
Cash flow hedge gain (loss) to be reclassified within twelve months			14,296
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Accumulated other comprehensive loss		(11,055)		(11,055)		$ (32,827)
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent | Foreign Exchange Forward
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Accumulated other comprehensive loss	(19,881)		(19,881)
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent | Interest Rate Contract
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Accumulated other comprehensive loss	(18,615)		(18,615)
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent | Reclassification out of Accumulated Other Comprehensive Income | Interest Rate Contract
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest expense	$ 449	$ 449	$ 899	$ 899