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Revenue Accounting for Contracts / Accounting for Joint Ventures (Pass-Through Costs Included in Revenues) (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 30, 2016	Jan. 01, 2016
Revenue Accounting For Contracts Accounting For Joint Ventures [Abstract]
Pass-through costs included in revenues	$ 672,979	$ 670,331

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- Definition

Pass through costs included in revenues.

+ References

No definition available.

+ Details

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- Definition

Revenue Accounting for Contracts / Accounting for Joint Ventures [Abstract]

+ References

No definition available.

+ Details

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