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| 0001193125-14-304612-index.html | 2014-08-11 14:39:23 | |
| 0001193125-14-304612.txt | 2014-08-11 14:39:23 | |
 0001193125-14-304612-xbrl.zip | 48588 | 2014-08-11 14:39:23 |
| d749527d10q.htm | 228175 | 2014-08-11 14:39:23 |
| d749527dex311.htm | 7781 | 2014-08-11 14:39:23 |
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| d749527dex32.htm | 3783 | 2014-08-11 14:39:23 |
| d749527dex321.htm | 3800 | 2014-08-11 14:39:23 |
| FilingSummary.xml | 14201 | 2014-08-11 14:39:23 |
| Financial_Report.xls | 156810 | 2014-08-11 14:39:23 |
| Financial_Report.xlsx | 54487 | 2014-08-11 14:39:23 |
| pwx-20140630.xml | 181195 | 2014-08-11 14:39:23 |
| pwx-20140630.xsd | 21059 | 2014-08-11 14:39:23 |
| pwx-20140630_cal.xml | 40443 | 2014-08-11 14:39:23 |
| pwx-20140630_def.xml | 43175 | 2014-08-11 14:39:23 |
| pwx-20140630_lab.xml | 181163 | 2014-08-11 14:39:23 |
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| report.css | 2740 | 2014-08-11 14:39:23 |
| Show.js | 1410 | 2014-08-11 14:39:23 |