Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000790816-23-000013-index-headers.html | 2023-02-21 15:10:22 | |
| 0000790816-23-000013-index.html | 2023-02-21 15:10:22 | |
| 0000790816-23-000013.txt | 2023-02-21 15:10:22 | |
 0000790816-23-000013-xbrl.zip | 871919 | 2023-02-21 15:10:22 |
| bdn-20221231.htm | 5396372 | 2023-02-21 15:10:22 |
| bdn-20221231.xsd | 157093 | 2023-02-21 15:10:22 |
| bdn-20221231_cal.xml | 139665 | 2023-02-21 15:10:22 |
| bdn-20221231_def.xml | 989510 | 2023-02-21 15:10:22 |
 bdn-20221231_g1.gif | 14336 | 2023-02-21 15:10:22 |
| bdn-20221231_htm.xml | 4738025 | 2023-02-21 15:10:22 |
| bdn-20221231_lab.xml | 1416804 | 2023-02-21 15:10:22 |
| bdn-20221231_pre.xml | 1250422 | 2023-02-21 15:10:22 |
| bdnex1016.htm | 13461 | 2023-02-21 15:10:22 |
| bdnex1023.htm | 15714 | 2023-02-21 15:10:22 |
| bdnex1024.htm | 55043 | 2023-02-21 15:10:22 |
| bdnex1025.htm | 77703 | 2023-02-21 15:10:22 |
| bdnex21.htm | 93920 | 2023-02-21 15:10:22 |
| bdnex231q42022.htm | 3023 | 2023-02-21 15:10:22 |
| bdnex232q42022.htm | 1977 | 2023-02-21 15:10:22 |
| bdnex311q42022.htm | 9870 | 2023-02-21 15:10:22 |
| bdnex312q42022.htm | 9874 | 2023-02-21 15:10:22 |
| bdnex313q42022.htm | 10206 | 2023-02-21 15:10:22 |
| bdnex314q42022.htm | 10175 | 2023-02-21 15:10:22 |
| bdnex3219q42022.htm | 5944 | 2023-02-21 15:10:22 |
| bdnex321q42022.htm | 5011 | 2023-02-21 15:10:22 |
| bdnex322q42022.htm | 5035 | 2023-02-21 15:10:22 |
| bdnex323q42022.htm | 5324 | 2023-02-21 15:10:22 |
| bdnex324q42022.htm | 5345 | 2023-02-21 15:10:22 |
| bdnex991q42022.htm | 215029 | 2023-02-21 15:10:22 |
| FilingSummary.xml | 84410 | 2023-02-21 15:10:22 |
| Financial_Report.xlsx | 276942 | 2023-02-21 15:10:22 |
| MetaLinks.json | 1444834 | 2023-02-21 15:10:22 |
| R1.htm | 71039 | 2023-02-21 15:10:22 |
| R10.htm | 4782 | 2023-02-21 15:10:22 |
| R100.htm | 23611 | 2023-02-21 15:10:22 |
| R101.htm | 8368 | 2023-02-21 15:10:22 |
| R102.htm | 32245 | 2023-02-21 15:10:22 |
| R103.htm | 67091 | 2023-02-21 15:10:22 |
| R104.htm | 115917 | 2023-02-21 15:10:22 |
| R105.htm | 32751 | 2023-02-21 15:10:22 |
| R106.htm | 27174 | 2023-02-21 15:10:22 |
| R107.htm | 20245 | 2023-02-21 15:10:22 |
| R108.htm | 5942 | 2023-02-21 15:10:22 |
| R109.htm | 59166 | 2023-02-21 15:10:22 |
| R11.htm | 116162 | 2023-02-21 15:10:22 |
| R110.htm | 46592 | 2023-02-21 15:10:22 |
| R111.htm | 55774 | 2023-02-21 15:10:22 |
| R112.htm | 40523 | 2023-02-21 15:10:22 |
| R113.htm | 86984 | 2023-02-21 15:10:22 |
| R114.htm | 25492 | 2023-02-21 15:10:22 |
| R115.htm | 30788 | 2023-02-21 15:10:22 |
| R116.htm | 14669 | 2023-02-21 15:10:22 |
| R117.htm | 14923 | 2023-02-21 15:10:22 |
| R118.htm | 38997 | 2023-02-21 15:10:22 |
| R119.htm | 4331 | 2023-02-21 15:10:22 |
| R12.htm | 16305 | 2023-02-21 15:10:22 |
| R120.htm | 24253 | 2023-02-21 15:10:22 |
| R121.htm | 44083 | 2023-02-21 15:10:22 |
| R122.htm | 21158 | 2023-02-21 15:10:22 |
| R123.htm | 53727 | 2023-02-21 15:10:22 |
| R124.htm | 52111 | 2023-02-21 15:10:22 |
| R125.htm | 29071 | 2023-02-21 15:10:22 |
| R126.htm | 10523 | 2023-02-21 15:10:22 |
| R127.htm | 484356 | 2023-02-21 15:10:22 |
| R128.htm | 44404 | 2023-02-21 15:10:22 |
| R13.htm | 128638 | 2023-02-21 15:10:22 |
| R14.htm | 43961 | 2023-02-21 15:10:22 |
| R15.htm | 71919 | 2023-02-21 15:10:22 |
| R16.htm | 4499 | 2023-02-21 15:10:22 |
| R17.htm | 195000 | 2023-02-21 15:10:22 |
| R18.htm | 5010 | 2023-02-21 15:10:22 |
| R19.htm | 18505 | 2023-02-21 15:10:22 |
| R2.htm | 7827 | 2023-02-21 15:10:22 |
| R20.htm | 184819 | 2023-02-21 15:10:22 |
| R21.htm | 112731 | 2023-02-21 15:10:22 |
| R22.htm | 134252 | 2023-02-21 15:10:22 |
| R23.htm | 6381 | 2023-02-21 15:10:22 |
| R24.htm | 56806 | 2023-02-21 15:10:22 |
| R25.htm | 21132 | 2023-02-21 15:10:22 |
| R26.htm | 44070 | 2023-02-21 15:10:22 |
| R27.htm | 57122 | 2023-02-21 15:10:22 |
| R28.htm | 23060 | 2023-02-21 15:10:22 |
| R29.htm | 32018 | 2023-02-21 15:10:22 |
| R3.htm | 122049 | 2023-02-21 15:10:22 |
| R30.htm | 6876 | 2023-02-21 15:10:22 |
| R31.htm | 45219 | 2023-02-21 15:10:22 |
| R32.htm | 48765 | 2023-02-21 15:10:22 |
| R33.htm | 48871 | 2023-02-21 15:10:22 |
| R34.htm | 22288 | 2023-02-21 15:10:22 |
| R35.htm | 10098 | 2023-02-21 15:10:22 |
| R36.htm | 27794 | 2023-02-21 15:10:22 |
| R37.htm | 119160 | 2023-02-21 15:10:22 |
| R38.htm | 16820 | 2023-02-21 15:10:22 |
| R39.htm | 6632 | 2023-02-21 15:10:22 |
| R4.htm | 9595 | 2023-02-21 15:10:22 |
| R40.htm | 17587 | 2023-02-21 15:10:22 |
| R41.htm | 477013 | 2023-02-21 15:10:22 |
| R42.htm | 129944 | 2023-02-21 15:10:22 |
| R43.htm | 12723 | 2023-02-21 15:10:22 |
| R44.htm | 116986 | 2023-02-21 15:10:22 |
| R45.htm | 112172 | 2023-02-21 15:10:22 |
| R46.htm | 118951 | 2023-02-21 15:10:22 |
| R47.htm | 30823 | 2023-02-21 15:10:22 |
| R48.htm | 21275 | 2023-02-21 15:10:22 |
| R49.htm | 44983 | 2023-02-21 15:10:22 |
| R5.htm | 123396 | 2023-02-21 15:10:22 |
| R50.htm | 53073 | 2023-02-21 15:10:22 |
| R51.htm | 17647 | 2023-02-21 15:10:22 |
| R52.htm | 25370 | 2023-02-21 15:10:22 |
| R53.htm | 74855 | 2023-02-21 15:10:22 |
| R54.htm | 74850 | 2023-02-21 15:10:22 |
| R55.htm | 33262 | 2023-02-21 15:10:22 |
| R56.htm | 22439 | 2023-02-21 15:10:22 |
| R57.htm | 26457 | 2023-02-21 15:10:22 |
| R58.htm | 114976 | 2023-02-21 15:10:22 |
| R59.htm | 52412 | 2023-02-21 15:10:22 |
| R6.htm | 40241 | 2023-02-21 15:10:22 |
| R60.htm | 16679 | 2023-02-21 15:10:22 |
| R61.htm | 11559 | 2023-02-21 15:10:22 |
| R62.htm | 22103 | 2023-02-21 15:10:22 |
| R63.htm | 14460 | 2023-02-21 15:10:22 |
| R64.htm | 3950 | 2023-02-21 15:10:22 |
| R65.htm | 7595 | 2023-02-21 15:10:22 |
| R66.htm | 95620 | 2023-02-21 15:10:22 |
| R67.htm | 6929 | 2023-02-21 15:10:22 |
| R68.htm | 9789 | 2023-02-21 15:10:22 |
| R69.htm | 13097 | 2023-02-21 15:10:22 |
| R7.htm | 89336 | 2023-02-21 15:10:22 |
| R70.htm | 41687 | 2023-02-21 15:10:22 |
| R71.htm | 15785 | 2023-02-21 15:10:22 |
| R72.htm | 157326 | 2023-02-21 15:10:22 |
| R73.htm | 42965 | 2023-02-21 15:10:22 |
| R74.htm | 16727 | 2023-02-21 15:10:22 |
| R75.htm | 26586 | 2023-02-21 15:10:22 |
| R76.htm | 51562 | 2023-02-21 15:10:22 |
| R77.htm | 72500 | 2023-02-21 15:10:22 |
| R78.htm | 27361 | 2023-02-21 15:10:22 |
| R79.htm | 42626 | 2023-02-21 15:10:22 |
| R8.htm | 4626 | 2023-02-21 15:10:22 |
| R80.htm | 32400 | 2023-02-21 15:10:22 |
| R81.htm | 57920 | 2023-02-21 15:10:22 |
| R82.htm | 15474 | 2023-02-21 15:10:22 |
| R83.htm | 26435 | 2023-02-21 15:10:22 |
| R84.htm | 26416 | 2023-02-21 15:10:22 |
| R85.htm | 30915 | 2023-02-21 15:10:22 |
| R86.htm | 33469 | 2023-02-21 15:10:22 |
| R87.htm | 44852 | 2023-02-21 15:10:22 |
| R88.htm | 20774 | 2023-02-21 15:10:22 |
| R89.htm | 15732 | 2023-02-21 15:10:22 |
| R9.htm | 163746 | 2023-02-21 15:10:22 |
| R90.htm | 13440 | 2023-02-21 15:10:22 |
| R91.htm | 15664 | 2023-02-21 15:10:22 |
| R92.htm | 16895 | 2023-02-21 15:10:22 |
| R93.htm | 29880 | 2023-02-21 15:10:22 |
| R94.htm | 14769 | 2023-02-21 15:10:22 |
| R95.htm | 11097 | 2023-02-21 15:10:22 |
| R96.htm | 13552 | 2023-02-21 15:10:22 |
| R97.htm | 20897 | 2023-02-21 15:10:22 |
| R98.htm | 24152 | 2023-02-21 15:10:22 |
| R99.htm | 4358 | 2023-02-21 15:10:22 |
| report.css | 2768 | 2023-02-21 15:10:22 |
| Show.js | 1086 | 2023-02-21 15:10:22 |