Commitments and Contingencies Commitment and Contingencies Legal Proceedings (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 27, 2014
Commitments and Contingencies Disclosure [Abstract]
Litigation Settlement, Amount	$ 400us-gaap_LitigationSettlementAmount

Amount of judgment or settlement awarded to (against) the entity in respect of litigation.

No definition available.

Name:	us-gaap_LitigationSettlementAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration