XML 35 R29.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Costs and Estimated Earnings in Excess of Billings (Tables) | 3 Months Ended
--- | ---
Oct. 25, 2014
Contractors [Abstract] |
Costs and Estimated Earnings in Excess of Billings, Net | Costs and estimated earnings in excess of billings ("CIEB") includes revenue for services from contracts based both on the units-of-delivery and the cost-to-cost measures of the percentage of completion method. Contracts in progress are as follows:
| October 25, 2014 |  | July 26, 2014
| (Dollars in thousands)
Costs incurred on contracts in progress | $ | 232,709 |  |  | $ | 234,766 |
Estimated to date earnings | 61,859 |  |  | 57,335 |
Total costs and estimated earnings | 294,568 |  |  | 292,101 |
Less: billings to date | (51,644 | ) |  | (75,414 | )
| $ | 242,924 |  |  | $ | 216,687 |
Included in the accompanying condensed consolidated balance sheets under the captions: |  |  |  |  |
Costs and estimated earnings in excess of billings | $ | 256,951 |  |  | $ | 230,569 |
Billings in excess of costs and estimated earnings | (14,027 | ) |  | (13,882 | )
| $ | 242,924 |  |  | $ | 216,687 |

X
- Definition Tabular disclosure of costs and estimated earnings in excess of billings, net. + References No definition available. + Details
Name: | dy_CostsAndEstimatedEarningsInExcessOfBillingsNetTableTextBlock
Namespace Prefix: | dy_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_ContractorsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration