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New Accounting Pronouncements - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Oct. 01, 2017	Sep. 30, 2018	Oct. 01, 2017	Apr. 01, 2018	Jan. 01, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Decrease in cost of sales	$ (1,105,126)	$ (1,071,755)	$ (3,248,624)	$ (3,023,397)
Decrease in selling, general and administrative expenses	(136,002)	(129,136)	(414,474)	(379,645)
Increase in operating profit	$ 101,573	123,232	343,533	322,071
Reclassification from Net cash provided by operating activities			(451,516)	(281,005)
Reclassification to Net cash used in investing activities			$ (262,072)	(521,510)
Accounting Standards Update 2017-07
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Decrease in cost of sales		2,006		7,273
Decrease in selling, general and administrative expenses		1,144		33,973
Increase in operating profit		$ 3,150		41,246
Accounting Standards Update 2016-15
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Reclassification from Net cash provided by operating activities				1,104
Reclassification to Net cash used in investing activities				$ 1,104
Retained Earnings \| Accounting Standards Update 2014-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect, increase (decrease)					$ 1,721	$ 1,721
New Accounting Pronouncement, Early Adoption, Effect \| Retained Earnings \| Accounting Standards Update 2017-12
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect, increase (decrease)						$ 176