Amount of increase (decrease) in loss contingency liability.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349

Name:	us-gaap_LossContingencyAccrualCarryingValuePeriodIncreaseDecrease
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration

Retirement Benefit Plans Multiemployer Pension Plan (Details) - Withdrawal from Multiemployer Defined Benefit Plan [Member] - USD ($) $ in Thousands	3 Months Ended		24 Months Ended
	Mar. 29, 2015	Dec. 29, 2013	Jan. 03, 2016
Multiemployer Plans [Line Items]
Loss Contingency Accrual, Payments			$ 1,014
Cost of Sales [Member]
Multiemployer Plans [Line Items]
Loss Contingency Accrual, Period Increase (Decrease)	$ (12,486)	$ 13,500