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Business Combinations (Intangibles) (Details) - Sinclair Knight Merz $ in Thousands	Dec. 26, 2014 USD ($)
Business Acquisition [Line Items]
Intangible assets	$ 202,166
Customer relationships / backlog
Business Acquisition [Line Items]
Intangible assets	193,260
Trade name
Business Acquisition [Line Items]
Intangible assets	$ 8,906

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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.

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- Definition

The amount of identifiable intangible assets recognized as of the acquisition date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 805



-SubTopic 10



-Section 55



-Paragraph 37



-URI http://asc.fasb.org/extlink&oid=35744172&loc=d3e2207-128464



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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 805



-SubTopic 20



-Section 50



-Paragraph 1



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-URI http://asc.fasb.org/extlink&oid=39739317&loc=d3e4845-128472

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