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| 0000866368-18-000005-index.html | 2018-02-23 19:59:53 | |
| 0000866368-18-000005.txt | 2018-02-23 19:59:53 | |
 0000866368-18-000005-xbrl.zip | 226048 | 2018-02-23 19:59:53 |
| FilingSummary.xml | 33862 | 2018-02-23 19:59:53 |
| Financial_Report.xlsx | 110910 | 2018-02-23 19:59:53 |
| psb-20171231.xml | 3873168 | 2018-02-23 19:59:53 |
| psb-20171231.xsd | 84801 | 2018-02-23 19:59:53 |
| psb-20171231x10k.htm | 5802429 | 2018-02-23 19:59:53 |
| psb-20171231xex10_12.htm | 502561 | 2018-02-23 19:59:53 |
| psb-20171231xex12.htm | 170883 | 2018-02-23 19:59:53 |
| psb-20171231xex21.htm | 48425 | 2018-02-23 19:59:53 |
| psb-20171231xex23.htm | 17634 | 2018-02-23 19:59:53 |
| psb-20171231xex31_1.htm | 20536 | 2018-02-23 19:59:53 |
| psb-20171231xex32_1.htm | 12355 | 2018-02-23 19:59:53 |
| psb-20171231_cal.xml | 48932 | 2018-02-23 19:59:53 |
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| psb-20171231_lab.xml | 548186 | 2018-02-23 19:59:53 |
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| report.css | 2767 | 2018-02-23 19:59:53 |
| Show.js | 1410 | 2018-02-23 19:59:53 |