Contingent Liabilities - Other (Details) - Threatened Litigation - USD ($) $ in Millions	1 Months Ended	6 Months Ended
Dec. 31, 2014	Sep. 30, 2013	Jun. 28, 2015
Loss Contingencies [Line Items]
Demand for payment	$ 34.0	$ 26.0
Decline in contributions, percent (more than)		70.00%
Payments made in accordance with ERISA			$ 8.1
Payments made in current period			$ 3.6

Loss Contingency, Allegations, Percentage of Decline in Contribution to Multiemployer Defined Benefit Plan

No definition available.

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- Definition

Loss Contingency, Payments to Date

+ References

No definition available.

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

The value (monetary amount) of the award the plaintiff seeks in the legal matter.

+ References

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

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 9

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14557-108349

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 4

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14435-108349

+ Details

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- Definition

The amount of loss pertaining to the specified contingency that was charged against earnings in the period, including the effects of revisions in previously reported estimates.

+ References

+ Details

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- Details

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