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| 0000808362-16-000069-index.html | 2016-05-02 07:24:05 | |
| 0000808362-16-000069.txt | 2016-05-02 07:24:05 | |
 0000808362-16-000069-xbrl.zip | 121927 | 2016-05-02 07:24:05 |
| a2016033110-q.htm | 785939 | 2016-05-02 07:24:05 |
| a20160331exhibit311.htm | 10684 | 2016-05-02 07:24:05 |
| a20160331exhibit312.htm | 10888 | 2016-05-02 07:24:05 |
| a20160331exhibit32.htm | 17487 | 2016-05-02 07:24:05 |
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| bhi-20160331.xsd | 30911 | 2016-05-02 07:24:05 |
| bhi-20160331_cal.xml | 67496 | 2016-05-02 07:24:05 |
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| bhi-20160331_pre.xml | 231304 | 2016-05-02 07:24:05 |
| FilingSummary.xml | 25440 | 2016-05-02 07:24:05 |
| Financial_Report.xlsx | 51645 | 2016-05-02 07:24:05 |
| q1fy2016minesafetydisclosu.htm | 19903 | 2016-05-02 07:24:05 |
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| report.css | 2767 | 2016-05-02 07:24:05 |
| Show.js | 1410 | 2016-05-02 07:24:05 |