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 0000067215-20-000035-index-headers.html | 2020-06-04 08:31:35 | |
| 0000067215-20-000035-index.html | 2020-06-04 08:31:35 | |
| 0000067215-20-000035.txt | 2020-06-04 08:31:35 | |
 0000067215-20-000035-xbrl.zip | 16550 | 2020-06-04 08:31:35 |
| a2020-06x03pressreleasec.htm | 8510 | 2020-06-04 08:31:35 |
 a2020-06x03pressreleasec001.jpg | 236982 | 2020-06-04 08:31:35 |
 a2020-06x03pressreleasec002.jpg | 223205 | 2020-06-04 08:31:35 |
| dy-20200603.htm | 45406 | 2020-06-04 08:31:35 |
| dy-20200603.xsd | 2873 | 2020-06-04 08:31:35 |
| dy-20200603_cal.xml | 801 | 2020-06-04 08:31:35 |
| dy-20200603_def.xml | 1765 | 2020-06-04 08:31:35 |
| dy-20200603_htm.xml | 10835 | 2020-06-04 08:31:35 |
| dy-20200603_lab.xml | 24480 | 2020-06-04 08:31:35 |
| dy-20200603_pre.xml | 12632 | 2020-06-04 08:31:35 |
| FilingSummary.xml | 1808 | 2020-06-04 08:31:35 |
| Financial_Report.xlsx | 5833 | 2020-06-04 08:31:35 |
| MetaLinks.json | 18761 | 2020-06-04 08:31:35 |
| R1.htm | 38658 | 2020-06-04 08:31:35 |
| report.css | 2767 | 2020-06-04 08:31:35 |
| Show.js | 1085 | 2020-06-04 08:31:35 |