Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-16-577094-index-headers.html | 2016-05-04 13:45:26 | |
| 0001193125-16-577094-index.html | 2016-05-04 13:45:26 | |
| 0001193125-16-577094.txt | 2016-05-04 13:45:26 | |
 0001193125-16-577094-xbrl.zip | 39301 | 2016-05-04 13:45:26 |
| d163164d10q.htm | 188429 | 2016-05-04 13:45:26 |
| d163164dex311.htm | 8993 | 2016-05-04 13:45:26 |
| d163164dex312.htm | 8973 | 2016-05-04 13:45:26 |
| d163164dex32.htm | 4749 | 2016-05-04 13:45:26 |
| FilingSummary.xml | 14769 | 2016-05-04 13:45:26 |
| Financial_Report.xlsx | 24609 | 2016-05-04 13:45:26 |
| grc-20160331.xml | 270880 | 2016-05-04 13:45:26 |
| grc-20160331.xsd | 22175 | 2016-05-04 13:45:26 |
| grc-20160331_cal.xml | 31387 | 2016-05-04 13:45:26 |
| grc-20160331_def.xml | 117908 | 2016-05-04 13:45:26 |
| grc-20160331_lab.xml | 113254 | 2016-05-04 13:45:26 |
| grc-20160331_pre.xml | 131825 | 2016-05-04 13:45:26 |
| R1.htm | 25684 | 2016-05-04 13:45:26 |
| R10.htm | 15859 | 2016-05-04 13:45:26 |
| R11.htm | 35113 | 2016-05-04 13:45:26 |
| R12.htm | 46282 | 2016-05-04 13:45:26 |
| R13.htm | 15814 | 2016-05-04 13:45:26 |
| R14.htm | 14819 | 2016-05-04 13:45:26 |
| R15.htm | 30871 | 2016-05-04 13:45:26 |
| R16.htm | 44320 | 2016-05-04 13:45:26 |
| R17.htm | 4589 | 2016-05-04 13:45:26 |
| R18.htm | 10379 | 2016-05-04 13:45:26 |
| R19.htm | 7924 | 2016-05-04 13:45:26 |
| R2.htm | 32197 | 2016-05-04 13:45:26 |
| R20.htm | 17733 | 2016-05-04 13:45:26 |
| R21.htm | 12229 | 2016-05-04 13:45:26 |
| R22.htm | 20960 | 2016-05-04 13:45:26 |
| R3.htm | 14690 | 2016-05-04 13:45:26 |
| R4.htm | 71926 | 2016-05-04 13:45:26 |
| R5.htm | 5514 | 2016-05-04 13:45:26 |
| R6.htm | 53493 | 2016-05-04 13:45:26 |
| R7.htm | 5984 | 2016-05-04 13:45:26 |
| R8.htm | 10319 | 2016-05-04 13:45:26 |
| R9.htm | 17510 | 2016-05-04 13:45:26 |
| report.css | 2767 | 2016-05-04 13:45:26 |
| Show.js | 1410 | 2016-05-04 13:45:26 |