Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000205402-19-000006-index-headers.html | 2019-03-13 11:16:39 | |
| 0000205402-19-000006-index.html | 2019-03-13 11:16:39 | |
| 0000205402-19-000006.txt | 2019-03-13 11:16:39 | |
 0000205402-19-000006-xbrl.zip | 270172 | 2019-03-13 11:16:39 |
| a12312018-ex21.htm | 4925 | 2019-03-13 11:16:39 |
| a12312018-ex311.htm | 14593 | 2019-03-13 11:16:39 |
| a12312018-ex312.htm | 14676 | 2019-03-13 11:16:39 |
| a12312018-ex321.htm | 9322 | 2019-03-13 11:16:39 |
| a12312018-ex322.htm | 9346 | 2019-03-13 11:16:39 |
| a1231201810k.htm | 1611760 | 2019-03-13 11:16:39 |
| a12312018ex103.htm | 27895 | 2019-03-13 11:16:39 |
| FilingSummary.xml | 39584 | 2019-03-13 11:16:39 |
| Financial_Report.xlsx | 99696 | 2019-03-13 11:16:39 |
| graybar-20181231.xml | 2278926 | 2019-03-13 11:16:39 |
| graybar-20181231.xsd | 47803 | 2019-03-13 11:16:39 |
| graybar-20181231_cal.xml | 115746 | 2019-03-13 11:16:39 |
| graybar-20181231_def.xml | 288464 | 2019-03-13 11:16:39 |
| graybar-20181231_lab.xml | 844136 | 2019-03-13 11:16:39 |
| graybar-20181231_pre.xml | 497205 | 2019-03-13 11:16:39 |
| R1.htm | 28428 | 2019-03-13 11:16:39 |
| R10.htm | 6159 | 2019-03-13 11:16:39 |
| R11.htm | 57875 | 2019-03-13 11:16:39 |
| R12.htm | 40971 | 2019-03-13 11:16:39 |
| R13.htm | 50383 | 2019-03-13 11:16:39 |
| R14.htm | 8488 | 2019-03-13 11:16:39 |
| R15.htm | 18228 | 2019-03-13 11:16:39 |
| R16.htm | 52317 | 2019-03-13 11:16:39 |
| R17.htm | 131859 | 2019-03-13 11:16:39 |
| R18.htm | 20766 | 2019-03-13 11:16:39 |
| R19.htm | 6528 | 2019-03-13 11:16:39 |
| R2.htm | 36294 | 2019-03-13 11:16:39 |
| R20.htm | 44554 | 2019-03-13 11:16:39 |
| R21.htm | 273794 | 2019-03-13 11:16:39 |
| R22.htm | 280100 | 2019-03-13 11:16:39 |
| R23.htm | 13736 | 2019-03-13 11:16:39 |
| R24.htm | 92536 | 2019-03-13 11:16:39 |
| R25.htm | 6046 | 2019-03-13 11:16:39 |
| R26.htm | 46226 | 2019-03-13 11:16:39 |
| R27.htm | 111622 | 2019-03-13 11:16:39 |
| R28.htm | 23994 | 2019-03-13 11:16:39 |
| R29.htm | 39643 | 2019-03-13 11:16:39 |
| R3.htm | 5080 | 2019-03-13 11:16:39 |
| R30.htm | 50216 | 2019-03-13 11:16:39 |
| R31.htm | 8739 | 2019-03-13 11:16:39 |
| R32.htm | 51894 | 2019-03-13 11:16:39 |
| R33.htm | 131681 | 2019-03-13 11:16:39 |
| R34.htm | 11736 | 2019-03-13 11:16:39 |
| R35.htm | 23604 | 2019-03-13 11:16:39 |
| R36.htm | 269675 | 2019-03-13 11:16:39 |
| R37.htm | 10944 | 2019-03-13 11:16:39 |
| R38.htm | 95345 | 2019-03-13 11:16:39 |
| R39.htm | 46040 | 2019-03-13 11:16:39 |
| R4.htm | 22772 | 2019-03-13 11:16:39 |
| R40.htm | 8657 | 2019-03-13 11:16:39 |
| R41.htm | 18338 | 2019-03-13 11:16:39 |
| R42.htm | 21210 | 2019-03-13 11:16:39 |
| R43.htm | 34730 | 2019-03-13 11:16:39 |
| R44.htm | 12681 | 2019-03-13 11:16:39 |
| R45.htm | 18188 | 2019-03-13 11:16:39 |
| R46.htm | 15363 | 2019-03-13 11:16:39 |
| R47.htm | 35880 | 2019-03-13 11:16:39 |
| R48.htm | 7540 | 2019-03-13 11:16:39 |
| R49.htm | 30654 | 2019-03-13 11:16:39 |
| R5.htm | 5399 | 2019-03-13 11:16:39 |
| R50.htm | 20713 | 2019-03-13 11:16:39 |
| R51.htm | 137435 | 2019-03-13 11:16:39 |
| R52.htm | 31630 | 2019-03-13 11:16:39 |
| R53.htm | 7492 | 2019-03-13 11:16:39 |
| R54.htm | 28574 | 2019-03-13 11:16:39 |
| R55.htm | 63305 | 2019-03-13 11:16:39 |
| R56.htm | 20196 | 2019-03-13 11:16:39 |
| R57.htm | 9288 | 2019-03-13 11:16:39 |
| R58.htm | 101257 | 2019-03-13 11:16:39 |
| R59.htm | 197801 | 2019-03-13 11:16:39 |
| R6.htm | 93110 | 2019-03-13 11:16:39 |
| R60.htm | 7649 | 2019-03-13 11:16:39 |
| R61.htm | 21228 | 2019-03-13 11:16:39 |
| R62.htm | 23264 | 2019-03-13 11:16:39 |
| R63.htm | 26458 | 2019-03-13 11:16:39 |
| R64.htm | 32809 | 2019-03-13 11:16:39 |
| R65.htm | 12139 | 2019-03-13 11:16:39 |
| R66.htm | 19585 | 2019-03-13 11:16:39 |
| R7.htm | 20245 | 2019-03-13 11:16:39 |
| R8.htm | 87990 | 2019-03-13 11:16:39 |
| R9.htm | 32927 | 2019-03-13 11:16:39 |
| report.css | 2767 | 2019-03-13 11:16:39 |
| Show.js | 1085 | 2019-03-13 11:16:39 |