Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000078890-22-000346-index-headers.html | 2022-08-03 07:34:43 | |
| 0000078890-22-000346-index.html | 2022-08-03 07:34:43 | |
| 0000078890-22-000346.txt | 2022-08-03 07:34:43 | |
 0000078890-22-000346-xbrl.zip | 378597 | 2022-08-03 07:34:43 |
| bco-20220630.htm | 3257466 | 2022-08-03 07:34:43 |
| bco-20220630.xsd | 43822 | 2022-08-03 07:34:43 |
| bco-20220630_cal.xml | 91039 | 2022-08-03 07:34:43 |
| bco-20220630_def.xml | 294571 | 2022-08-03 07:34:43 |
| bco-20220630_htm.xml | 2677502 | 2022-08-03 07:34:43 |
| bco-20220630_lab.xml | 742923 | 2022-08-03 07:34:43 |
| bco-20220630_pre.xml | 478809 | 2022-08-03 07:34:43 |
| ex311q22022.htm | 9141 | 2022-08-03 07:34:43 |
| ex312q22022.htm | 9472 | 2022-08-03 07:34:43 |
| ex321q22022.htm | 5531 | 2022-08-03 07:34:43 |
| ex322q22022.htm | 5748 | 2022-08-03 07:34:43 |
| FilingSummary.xml | 34123 | 2022-08-03 07:34:43 |
| Financial_Report.xlsx | 129608 | 2022-08-03 07:34:43 |
| MetaLinks.json | 779503 | 2022-08-03 07:34:43 |
| R1.htm | 52135 | 2022-08-03 07:34:43 |
| R10.htm | 98577 | 2022-08-03 07:34:43 |
| R11.htm | 118123 | 2022-08-03 07:34:43 |
| R12.htm | 19697 | 2022-08-03 07:34:43 |
| R13.htm | 21690 | 2022-08-03 07:34:43 |
| R14.htm | 194946 | 2022-08-03 07:34:43 |
| R15.htm | 56158 | 2022-08-03 07:34:43 |
| R16.htm | 40860 | 2022-08-03 07:34:43 |
| R17.htm | 12858 | 2022-08-03 07:34:43 |
| R18.htm | 72498 | 2022-08-03 07:34:43 |
| R19.htm | 29700 | 2022-08-03 07:34:43 |
| R2.htm | 137518 | 2022-08-03 07:34:43 |
| R20.htm | 20468 | 2022-08-03 07:34:43 |
| R21.htm | 8123 | 2022-08-03 07:34:43 |
| R22.htm | 18786 | 2022-08-03 07:34:43 |
| R23.htm | 32633 | 2022-08-03 07:34:43 |
| R24.htm | 17381 | 2022-08-03 07:34:43 |
| R25.htm | 73558 | 2022-08-03 07:34:43 |
| R26.htm | 87573 | 2022-08-03 07:34:43 |
| R27.htm | 114422 | 2022-08-03 07:34:43 |
| R28.htm | 13701 | 2022-08-03 07:34:43 |
| R29.htm | 196292 | 2022-08-03 07:34:43 |
| R3.htm | 10746 | 2022-08-03 07:34:43 |
| R30.htm | 50505 | 2022-08-03 07:34:43 |
| R31.htm | 27493 | 2022-08-03 07:34:43 |
| R32.htm | 9980 | 2022-08-03 07:34:43 |
| R33.htm | 69005 | 2022-08-03 07:34:43 |
| R34.htm | 21167 | 2022-08-03 07:34:43 |
| R35.htm | 16359 | 2022-08-03 07:34:43 |
| R36.htm | 16856 | 2022-08-03 07:34:43 |
| R37.htm | 86191 | 2022-08-03 07:34:43 |
| R38.htm | 43542 | 2022-08-03 07:34:43 |
| R39.htm | 26289 | 2022-08-03 07:34:43 |
| R4.htm | 129778 | 2022-08-03 07:34:43 |
| R40.htm | 65837 | 2022-08-03 07:34:43 |
| R41.htm | 52584 | 2022-08-03 07:34:43 |
| R42.htm | 8861 | 2022-08-03 07:34:43 |
| R43.htm | 13094 | 2022-08-03 07:34:43 |
| R44.htm | 34412 | 2022-08-03 07:34:43 |
| R45.htm | 100493 | 2022-08-03 07:34:43 |
| R46.htm | 50317 | 2022-08-03 07:34:43 |
| R47.htm | 132980 | 2022-08-03 07:34:43 |
| R48.htm | 56112 | 2022-08-03 07:34:43 |
| R49.htm | 73689 | 2022-08-03 07:34:43 |
| R5.htm | 59463 | 2022-08-03 07:34:43 |
| R50.htm | 19704 | 2022-08-03 07:34:43 |
| R51.htm | 23413 | 2022-08-03 07:34:43 |
| R52.htm | 45686 | 2022-08-03 07:34:43 |
| R53.htm | 24335 | 2022-08-03 07:34:43 |
| R54.htm | 34709 | 2022-08-03 07:34:43 |
| R55.htm | 14210 | 2022-08-03 07:34:43 |
| R56.htm | 26810 | 2022-08-03 07:34:43 |
| R57.htm | 9802 | 2022-08-03 07:34:43 |
| R58.htm | 30420 | 2022-08-03 07:34:43 |
| R6.htm | 132109 | 2022-08-03 07:34:43 |
| R7.htm | 118109 | 2022-08-03 07:34:43 |
| R8.htm | 26079 | 2022-08-03 07:34:43 |
| R9.htm | 88461 | 2022-08-03 07:34:43 |
| report.css | 2767 | 2022-08-03 07:34:43 |
| Show.js | 1085 | 2022-08-03 07:34:43 |