Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Apr. 01, 2018	Jun. 25, 2017	Jul. 01, 2018	Jun. 25, 2017	Dec. 30, 2018	Jan. 01, 2018	Dec. 31, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Stranded tax effects reclassified, ASU 2018-02	$ 94,100
Retained earnings			$ 1,439,121				$ 1,310,136
Contract asset			2,900
Accounting Standards Update 2018-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Stranded tax effects reclassified, ASU 2018-02			$ 94,100
Accounting Standards Update 2017-07
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Income from production costs		$ 400		$ 500
Income from selling and general and administrative costs		$ 800		$ 1,900
Accounting Standards Update 2014-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Contract asset						$ 3,500
Contract asset, current						1,300
Contract asset, noncurrent						2,200
Difference between Revenue Guidance in Effect before and after Topic 606 | Accounting Standards Update 2014-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Retained earnings						2,600
Net increase to opening retained earnings, before tax						$ 3,500
Scenario, Forecast | Accounting Standards Update 2014-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Decrease to other revenue					$ 1,300
Minimum | Pro Forma | Accounting Standards Update 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Right of use asset							40,000
Lease liabilities							40,000
Maximum | Pro Forma | Accounting Standards Update 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Right of use asset							45,000
Lease liabilities							$ 45,000