Recently Issued Accounting Pronouncements Details Textual (Details) - USD ($) $ in Thousands	9 Months Ended
Sep. 28, 2018	Dec. 31, 2017
Tax Cuts And Jobs Act Of 2017, Transition Tax		$ 52,000
Tax Cuts And Jobs Act Of 2017, Incomplete Accounting, Provisional Income Tax Expense (Benefit)	$ 55,000
Retained Earnings
Cumulative Effect of New Accounting Principle in Period of Adoption		$ 5,152

Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption.

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant