Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000029644-20-000022-index-headers.html | 2020-06-03 12:59:42 | |
| 0000029644-20-000022-index.html | 2020-06-03 12:59:42 | |
| 0000029644-20-000022.txt | 2020-06-03 12:59:42 | |
 0000029644-20-000022-xbrl.zip | 262180 | 2020-06-03 12:59:42 |
| dci-20200430.htm | 2036772 | 2020-06-03 12:59:42 |
| dci-20200430.xsd | 41769 | 2020-06-03 12:59:42 |
| dci-20200430_cal.xml | 91951 | 2020-06-03 12:59:42 |
| dci-20200430_def.xml | 198110 | 2020-06-03 12:59:42 |
| dci-20200430_htm.xml | 2010398 | 2020-06-03 12:59:42 |
| dci-20200430_lab.xml | 587150 | 2020-06-03 12:59:42 |
| dci-20200430_pre.xml | 375384 | 2020-06-03 12:59:42 |
| exhibit31-a20200430.htm | 12856 | 2020-06-03 12:59:42 |
| exhibit31-b20200430.htm | 12717 | 2020-06-03 12:59:42 |
| exhibit3220200430.htm | 10341 | 2020-06-03 12:59:42 |
| FilingSummary.xml | 42793 | 2020-06-03 12:59:42 |
| Financial_Report.xlsx | 78317 | 2020-06-03 12:59:42 |
| MetaLinks.json | 585106 | 2020-06-03 12:59:42 |
| R1.htm | 52204 | 2020-06-03 12:59:42 |
| R10.htm | 16646 | 2020-06-03 12:59:42 |
| R11.htm | 5197 | 2020-06-03 12:59:42 |
| R12.htm | 29628 | 2020-06-03 12:59:42 |
| R13.htm | 36099 | 2020-06-03 12:59:42 |
| R14.htm | 44153 | 2020-06-03 12:59:42 |
| R15.htm | 31387 | 2020-06-03 12:59:42 |
| R16.htm | 17698 | 2020-06-03 12:59:42 |
| R17.htm | 57717 | 2020-06-03 12:59:42 |
| R18.htm | 42062 | 2020-06-03 12:59:42 |
| R19.htm | 6477 | 2020-06-03 12:59:42 |
| R2.htm | 40680 | 2020-06-03 12:59:42 |
| R20.htm | 82435 | 2020-06-03 12:59:42 |
| R21.htm | 5782 | 2020-06-03 12:59:42 |
| R22.htm | 148935 | 2020-06-03 12:59:42 |
| R23.htm | 29905 | 2020-06-03 12:59:42 |
| R24.htm | 5185 | 2020-06-03 12:59:42 |
| R25.htm | 86010 | 2020-06-03 12:59:42 |
| R26.htm | 55293 | 2020-06-03 12:59:42 |
| R27.htm | 6833 | 2020-06-03 12:59:42 |
| R28.htm | 18054 | 2020-06-03 12:59:42 |
| R29.htm | 33004 | 2020-06-03 12:59:42 |
| R3.htm | 26815 | 2020-06-03 12:59:42 |
| R30.htm | 35423 | 2020-06-03 12:59:42 |
| R31.htm | 45600 | 2020-06-03 12:59:42 |
| R32.htm | 28085 | 2020-06-03 12:59:42 |
| R33.htm | 17458 | 2020-06-03 12:59:42 |
| R34.htm | 57928 | 2020-06-03 12:59:42 |
| R35.htm | 38306 | 2020-06-03 12:59:42 |
| R36.htm | 101001 | 2020-06-03 12:59:42 |
| R37.htm | 148785 | 2020-06-03 12:59:42 |
| R38.htm | 31885 | 2020-06-03 12:59:42 |
| R39.htm | 85496 | 2020-06-03 12:59:42 |
| R4.htm | 10036 | 2020-06-03 12:59:42 |
| R40.htm | 58551 | 2020-06-03 12:59:42 |
| R41.htm | 10289 | 2020-06-03 12:59:42 |
| R42.htm | 12280 | 2020-06-03 12:59:42 |
| R43.htm | 10937 | 2020-06-03 12:59:42 |
| R44.htm | 20486 | 2020-06-03 12:59:42 |
| R45.htm | 5104 | 2020-06-03 12:59:42 |
| R46.htm | 24262 | 2020-06-03 12:59:42 |
| R47.htm | 14333 | 2020-06-03 12:59:42 |
| R48.htm | 19397 | 2020-06-03 12:59:42 |
| R49.htm | 14520 | 2020-06-03 12:59:42 |
| R5.htm | 89148 | 2020-06-03 12:59:42 |
| R50.htm | 9725 | 2020-06-03 12:59:42 |
| R51.htm | 11879 | 2020-06-03 12:59:42 |
| R52.htm | 37028 | 2020-06-03 12:59:42 |
| R53.htm | 11627 | 2020-06-03 12:59:42 |
| R54.htm | 22349 | 2020-06-03 12:59:42 |
| R55.htm | 24797 | 2020-06-03 12:59:42 |
| R56.htm | 31149 | 2020-06-03 12:59:42 |
| R57.htm | 20313 | 2020-06-03 12:59:42 |
| R58.htm | 8062 | 2020-06-03 12:59:42 |
| R59.htm | 16932 | 2020-06-03 12:59:42 |
| R6.htm | 19588 | 2020-06-03 12:59:42 |
| R60.htm | 24443 | 2020-06-03 12:59:42 |
| R61.htm | 16116 | 2020-06-03 12:59:42 |
| R62.htm | 15730 | 2020-06-03 12:59:42 |
| R63.htm | 54800 | 2020-06-03 12:59:42 |
| R64.htm | 20421 | 2020-06-03 12:59:42 |
| R65.htm | 4181 | 2020-06-03 12:59:42 |
| R66.htm | 32903 | 2020-06-03 12:59:42 |
| R67.htm | 9013 | 2020-06-03 12:59:42 |
| R68.htm | 13054 | 2020-06-03 12:59:42 |
| R69.htm | 41582 | 2020-06-03 12:59:42 |
| R7.htm | 64707 | 2020-06-03 12:59:42 |
| R70.htm | 22496 | 2020-06-03 12:59:42 |
| R8.htm | 35297 | 2020-06-03 12:59:42 |
| R9.htm | 4506 | 2020-06-03 12:59:42 |
| report.css | 2767 | 2020-06-03 12:59:42 |
| Show.js | 1085 | 2020-06-03 12:59:42 |