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Revenue Accounting for Contracts / Accounting for Joint Ventures (Tables) | 9 Months Ended
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Jun. 29, 2018
Revenue Accounting For Contracts Accounting For Joint Ventures [Abstract] |
Pass-Through Costs Included in Revenues | The following table sets forth pass-through costs included in revenues for each of the three and nine month periods ended June 29, 2018 and June 30, 2017 (in thousands):
| Three Months Ended |  | Nine Months Ended
| June 29, 2018 |  | June 30, 2017 |  | June 29, 2018 |  | June 30, 2017
Pass-through costs included in revenues | $ | 889,147 |  |  | $ | 628,070 |  |  | $ | 2,198,197 |  |  | $ | 1,861,615 |

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