Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001047469-13-002282-index-headers.html | 2013-03-06 16:15:41 | |
| 0001047469-13-002282-index.html | 2013-03-06 16:15:41 | |
| 0001047469-13-002282.txt | 2013-03-06 16:15:41 | |
 0001047469-13-002282-xbrl.zip | 201530 | 2013-03-06 16:15:41 |
| a2213310z10-k.htm | 1123154 | 2013-03-06 16:15:41 |
| a2213310zex-21_1.htm | 12973 | 2013-03-06 16:15:41 |
| a2213310zex-23_1.htm | 4105 | 2013-03-06 16:15:41 |
| a2213310zex-24_1.htm | 24979 | 2013-03-06 16:15:41 |
| a2213310zex-31_1.htm | 13538 | 2013-03-06 16:15:41 |
| a2213310zex-31_2.htm | 13578 | 2013-03-06 16:15:41 |
| a2213310zex-32_1.htm | 5960 | 2013-03-06 16:15:41 |
| a2213310zex-32_2.htm | 5931 | 2013-03-06 16:15:41 |
| FilingSummary.xml | 34406 | 2013-03-06 16:15:41 |
| Financial_Report.xls | 1034282 | 2013-03-06 16:15:41 |
 g1024022.jpg | 38638 | 2013-03-06 16:15:41 |
| myrg-20121231.xml | 1187522 | 2013-03-06 16:15:41 |
| myrg-20121231.xsd | 69313 | 2013-03-06 16:15:41 |
| myrg-20121231_cal.xml | 86337 | 2013-03-06 16:15:41 |
| myrg-20121231_def.xml | 257260 | 2013-03-06 16:15:41 |
| myrg-20121231_lab.xml | 1161533 | 2013-03-06 16:15:41 |
| myrg-20121231_pre.xml | 549912 | 2013-03-06 16:15:41 |
| R1.htm | 37294 | 2013-03-06 16:15:41 |
| R10.htm | 13691 | 2013-03-06 16:15:41 |
| R11.htm | 22319 | 2013-03-06 16:15:41 |
| R12.htm | 19746 | 2013-03-06 16:15:41 |
| R13.htm | 18813 | 2013-03-06 16:15:41 |
| R14.htm | 33167 | 2013-03-06 16:15:41 |
| R15.htm | 13599 | 2013-03-06 16:15:41 |
| R16.htm | 10501 | 2013-03-06 16:15:41 |
| R17.htm | 68357 | 2013-03-06 16:15:41 |
| R18.htm | 20118 | 2013-03-06 16:15:41 |
| R19.htm | 25080 | 2013-03-06 16:15:41 |
| R2.htm | 126680 | 2013-03-06 16:15:41 |
| R20.htm | 93553 | 2013-03-06 16:15:41 |
| R21.htm | 49357 | 2013-03-06 16:15:41 |
| R22.htm | 14451 | 2013-03-06 16:15:41 |
| R23.htm | 42851 | 2013-03-06 16:15:41 |
| R24.htm | 23336 | 2013-03-06 16:15:41 |
| R25.htm | 27499 | 2013-03-06 16:15:41 |
| R26.htm | 105743 | 2013-03-06 16:15:41 |
| R27.htm | 21953 | 2013-03-06 16:15:41 |
| R28.htm | 17411 | 2013-03-06 16:15:41 |
| R29.htm | 17396 | 2013-03-06 16:15:41 |
| R3.htm | 42811 | 2013-03-06 16:15:41 |
| R30.htm | 27959 | 2013-03-06 16:15:41 |
| R31.htm | 12420 | 2013-03-06 16:15:41 |
| R32.htm | 74394 | 2013-03-06 16:15:41 |
| R33.htm | 10968 | 2013-03-06 16:15:41 |
| R34.htm | 14691 | 2013-03-06 16:15:41 |
| R35.htm | 97184 | 2013-03-06 16:15:41 |
| R36.htm | 36405 | 2013-03-06 16:15:41 |
| R37.htm | 12360 | 2013-03-06 16:15:41 |
| R38.htm | 42100 | 2013-03-06 16:15:41 |
| R39.htm | 19909 | 2013-03-06 16:15:41 |
| R4.htm | 82842 | 2013-03-06 16:15:41 |
| R40.htm | 24439 | 2013-03-06 16:15:41 |
| R41.htm | 5047 | 2013-03-06 16:15:41 |
| R42.htm | 34058 | 2013-03-06 16:15:41 |
| R43.htm | 12525 | 2013-03-06 16:15:41 |
| R44.htm | 9618 | 2013-03-06 16:15:41 |
| R45.htm | 20895 | 2013-03-06 16:15:41 |
| R46.htm | 31408 | 2013-03-06 16:15:41 |
| R47.htm | 21216 | 2013-03-06 16:15:41 |
| R48.htm | 32850 | 2013-03-06 16:15:41 |
| R49.htm | 56914 | 2013-03-06 16:15:41 |
| R5.htm | 37644 | 2013-03-06 16:15:41 |
| R50.htm | 25068 | 2013-03-06 16:15:41 |
| R51.htm | 55582 | 2013-03-06 16:15:41 |
| R52.htm | 41124 | 2013-03-06 16:15:41 |
| R53.htm | 38153 | 2013-03-06 16:15:41 |
| R54.htm | 56554 | 2013-03-06 16:15:41 |
| R55.htm | 33996 | 2013-03-06 16:15:41 |
| R56.htm | 58368 | 2013-03-06 16:15:41 |
| R57.htm | 36077 | 2013-03-06 16:15:41 |
| R58.htm | 25347 | 2013-03-06 16:15:41 |
| R59.htm | 107471 | 2013-03-06 16:15:41 |
| R6.htm | 126808 | 2013-03-06 16:15:41 |
| R60.htm | 9410 | 2013-03-06 16:15:41 |
| R61.htm | 41161 | 2013-03-06 16:15:41 |
| R62.htm | 61103 | 2013-03-06 16:15:41 |
| R63.htm | 20206 | 2013-03-06 16:15:41 |
| R64.htm | 7561 | 2013-03-06 16:15:41 |
| R65.htm | 42933 | 2013-03-06 16:15:41 |
| R66.htm | 19904 | 2013-03-06 16:15:41 |
| R67.htm | 23740 | 2013-03-06 16:15:41 |
| R68.htm | 10326 | 2013-03-06 16:15:41 |
| R69.htm | 8305 | 2013-03-06 16:15:41 |
| R7.htm | 7503 | 2013-03-06 16:15:41 |
| R70.htm | 62234 | 2013-03-06 16:15:41 |
| R71.htm | 30281 | 2013-03-06 16:15:41 |
| R8.htm | 28745 | 2013-03-06 16:15:41 |
| R9.htm | 11155 | 2013-03-06 16:15:41 |
| report.css | 2721 | 2013-03-06 16:15:41 |
| Show.js | 6423 | 2013-03-06 16:15:41 |