Employee Benefit Plans (Accumulated Other Comprehensive Income Over Next Fiscal Year) (Details) - Scenario, Forecast $ in Thousands	12 Months Ended
Dec. 25, 2016 USD ($)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Prior service costs	$ 39
Actuarial loss	1,749
Total	$ 1,788

Amount included in accumulated other comprehensive income (AOCI) expected to be recognized as components of net periodic benefit cost for the fiscal year that follows the most recent annual statement of financial position, including gain (loss), prior service cost (credit), and transition asset (obligation).

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration