Interim Financial Information - Recently Adopted Accounting Pronouncements (Details) - USD ($) $ in Thousands		9 Months Ended
Jul. 01, 2018	Sep. 30, 2018
Accounting Policies [Abstract]
Tax effects reclassified from accumulated other comprehensive loss to retained earnings	$ 200	$ 0

Tax Cuts And Jobs Act, Reclassification From AOCI To Retained Earnings, Tax Effect

No definition available.

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