Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000805022-17-000021-index-headers.html | 2017-11-03 16:11:06 | |
| 0000805022-17-000021-index.html | 2017-11-03 16:11:06 | |
| 0000805022-17-000021.txt | 2017-11-03 16:11:06 | |
 0000805022-17-000021-xbrl.zip | 225126 | 2017-11-03 16:11:06 |
| bpl-20170930.xml | 2050309 | 2017-11-03 16:11:06 |
| bpl-20170930.xsd | 50902 | 2017-11-03 16:11:06 |
| bpl-20170930_cal.xml | 99765 | 2017-11-03 16:11:06 |
| bpl-20170930_def.xml | 296388 | 2017-11-03 16:11:06 |
| bpl-20170930_lab.xml | 698619 | 2017-11-03 16:11:06 |
| bpl-20170930_pre.xml | 443365 | 2017-11-03 16:11:06 |
| bplq3201710q.htm | 1489020 | 2017-11-03 16:11:06 |
| exhibit311-bplq3201710q.htm | 13476 | 2017-11-03 16:11:06 |
| exhibit312-bplq3201710q.htm | 13123 | 2017-11-03 16:11:06 |
| exhibit321-bplq3201710q.htm | 6421 | 2017-11-03 16:11:06 |
| exhibit322-bplq3201710q.htm | 6386 | 2017-11-03 16:11:06 |
| FilingSummary.xml | 36508 | 2017-11-03 16:11:06 |
| Financial_Report.xlsx | 82440 | 2017-11-03 16:11:06 |
| R1.htm | 22219 | 2017-11-03 16:11:06 |
| R10.htm | 7967 | 2017-11-03 16:11:06 |
| R11.htm | 16112 | 2017-11-03 16:11:06 |
| R12.htm | 18104 | 2017-11-03 16:11:06 |
| R13.htm | 52861 | 2017-11-03 16:11:06 |
| R14.htm | 7058 | 2017-11-03 16:11:06 |
| R15.htm | 275392 | 2017-11-03 16:11:06 |
| R16.htm | 65840 | 2017-11-03 16:11:06 |
| R17.htm | 52546 | 2017-11-03 16:11:06 |
| R18.htm | 19266 | 2017-11-03 16:11:06 |
| R19.htm | 48303 | 2017-11-03 16:11:06 |
| R2.htm | 63263 | 2017-11-03 16:11:06 |
| R20.htm | 138208 | 2017-11-03 16:11:06 |
| R21.htm | 13613 | 2017-11-03 16:11:06 |
| R22.htm | 23477 | 2017-11-03 16:11:06 |
| R23.htm | 10759 | 2017-11-03 16:11:06 |
| R24.htm | 15310 | 2017-11-03 16:11:06 |
| R25.htm | 17839 | 2017-11-03 16:11:06 |
| R26.htm | 53720 | 2017-11-03 16:11:06 |
| R27.htm | 268415 | 2017-11-03 16:11:06 |
| R28.htm | 58622 | 2017-11-03 16:11:06 |
| R29.htm | 45574 | 2017-11-03 16:11:06 |
| R3.htm | 30073 | 2017-11-03 16:11:06 |
| R30.htm | 11393 | 2017-11-03 16:11:06 |
| R31.htm | 48412 | 2017-11-03 16:11:06 |
| R32.htm | 132418 | 2017-11-03 16:11:06 |
| R33.htm | 11718 | 2017-11-03 16:11:06 |
| R34.htm | 6225 | 2017-11-03 16:11:06 |
| R35.htm | 38805 | 2017-11-03 16:11:06 |
| R36.htm | 14480 | 2017-11-03 16:11:06 |
| R37.htm | 8094 | 2017-11-03 16:11:06 |
| R38.htm | 12868 | 2017-11-03 16:11:06 |
| R39.htm | 17690 | 2017-11-03 16:11:06 |
| R4.htm | 85804 | 2017-11-03 16:11:06 |
| R40.htm | 24436 | 2017-11-03 16:11:06 |
| R41.htm | 17160 | 2017-11-03 16:11:06 |
| R42.htm | 20958 | 2017-11-03 16:11:06 |
| R43.htm | 43138 | 2017-11-03 16:11:06 |
| R44.htm | 25680 | 2017-11-03 16:11:06 |
| R45.htm | 100227 | 2017-11-03 16:11:06 |
| R46.htm | 38569 | 2017-11-03 16:11:06 |
| R47.htm | 18846 | 2017-11-03 16:11:06 |
| R48.htm | 31685 | 2017-11-03 16:11:06 |
| R49.htm | 15974 | 2017-11-03 16:11:06 |
| R5.htm | 4672 | 2017-11-03 16:11:06 |
| R50.htm | 30301 | 2017-11-03 16:11:06 |
| R51.htm | 35281 | 2017-11-03 16:11:06 |
| R52.htm | 36407 | 2017-11-03 16:11:06 |
| R53.htm | 16630 | 2017-11-03 16:11:06 |
| R54.htm | 16879 | 2017-11-03 16:11:06 |
| R55.htm | 17624 | 2017-11-03 16:11:06 |
| R56.htm | 20454 | 2017-11-03 16:11:06 |
| R57.htm | 34918 | 2017-11-03 16:11:06 |
| R58.htm | 19941 | 2017-11-03 16:11:06 |
| R59.htm | 51955 | 2017-11-03 16:11:06 |
| R6.htm | 101791 | 2017-11-03 16:11:06 |
| R60.htm | 11202 | 2017-11-03 16:11:06 |
| R7.htm | 40197 | 2017-11-03 16:11:06 |
| R8.htm | 21974 | 2017-11-03 16:11:06 |
| R9.htm | 18226 | 2017-11-03 16:11:06 |
| report.css | 2767 | 2017-11-03 16:11:06 |
| Show.js | 1410 | 2017-11-03 16:11:06 |