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Costs and Estimated Earnings in Excess of Billings (Tables) | 6 Months Ended
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Jan. 28, 2017
Contractors [Abstract] |
Costs and Estimated Earnings in Excess of Billings, Net | Costs and estimated earnings in excess of billings (“CIEB”) includes revenue for services performed under contracts using the units-of-delivery method of accounting and the cost-to-cost measure of the percentage of completion method of accounting. Amounts consisted of the following (dollars in thousands):
| January 28, 2017 |  | July 30, 2016
Costs incurred on contracts in progress | $ | 348,933 |  |  | $ | 307,826 |
Estimated to date earnings | 86,999 |  |  | 92,226 |
Total costs and estimated earnings | 435,932 |  |  | 400,052 |
Less: billings to date | (56,888 | ) |  | (42,637 | )
| $ | 379,044 |  |  | $ | 357,415 |
Included in the accompanying condensed consolidated balance sheets under the captions: |  |  |  |  |
Costs and estimated earnings in excess of billings | $ | 397,048 |  |  | $ | 376,972 |
Billings in excess of costs and estimated earnings | (18,004 | ) |  | (19,557 | )
| $ | 379,044 |  |  | $ | 357,415 |

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