Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-16-669787-index-headers.html | 2016-08-03 13:39:28 | |
| 0001193125-16-669787-index.html | 2016-08-03 13:39:28 | |
| 0001193125-16-669787.txt | 2016-08-03 13:39:28 | |
 0001193125-16-669787-xbrl.zip | 44863 | 2016-08-03 13:39:28 |
| d398455d10q.htm | 254364 | 2016-08-03 13:39:28 |
| d398455dex311.htm | 9160 | 2016-08-03 13:39:28 |
| d398455dex312.htm | 8997 | 2016-08-03 13:39:28 |
| d398455dex32.htm | 4772 | 2016-08-03 13:39:28 |
| FilingSummary.xml | 14348 | 2016-08-03 13:39:28 |
| Financial_Report.xlsx | 26028 | 2016-08-03 13:39:28 |
| grc-20160630.xml | 392325 | 2016-08-03 13:39:28 |
| grc-20160630.xsd | 21707 | 2016-08-03 13:39:28 |
| grc-20160630_cal.xml | 33167 | 2016-08-03 13:39:28 |
| grc-20160630_def.xml | 122589 | 2016-08-03 13:39:28 |
| grc-20160630_lab.xml | 121456 | 2016-08-03 13:39:28 |
| grc-20160630_pre.xml | 139325 | 2016-08-03 13:39:28 |
| R1.htm | 27433 | 2016-08-03 13:39:28 |
| R10.htm | 15257 | 2016-08-03 13:39:28 |
| R11.htm | 54602 | 2016-08-03 13:39:28 |
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| R15.htm | 51179 | 2016-08-03 13:39:28 |
| R16.htm | 62645 | 2016-08-03 13:39:28 |
| R17.htm | 4589 | 2016-08-03 13:39:28 |
| R18.htm | 10365 | 2016-08-03 13:39:28 |
| R19.htm | 7905 | 2016-08-03 13:39:28 |
| R2.htm | 33458 | 2016-08-03 13:39:28 |
| R20.htm | 26033 | 2016-08-03 13:39:28 |
| R21.htm | 23831 | 2016-08-03 13:39:28 |
| R22.htm | 20913 | 2016-08-03 13:39:28 |
| R3.htm | 15252 | 2016-08-03 13:39:28 |
| R4.htm | 71922 | 2016-08-03 13:39:28 |
| R5.htm | 5535 | 2016-08-03 13:39:28 |
| R6.htm | 59388 | 2016-08-03 13:39:28 |
| R7.htm | 6347 | 2016-08-03 13:39:28 |
| R8.htm | 12979 | 2016-08-03 13:39:28 |
| R9.htm | 16516 | 2016-08-03 13:39:28 |
| report.css | 2767 | 2016-08-03 13:39:28 |
| Show.js | 1410 | 2016-08-03 13:39:28 |