Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-21-167807-index-headers.html | 2021-05-20 16:20:09 | |
| 0001193125-21-167807-index.html | 2021-05-20 16:20:09 | |
| 0001193125-21-167807.txt | 2021-05-20 16:20:09 | |
 0001193125-21-167807-xbrl.zip | 79744 | 2021-05-20 16:20:09 |
| d176511d8k.htm | 56361 | 2021-05-20 16:20:09 |
| d176511d8k_htm.xml | 8020 | 2021-05-20 16:20:09 |
| d176511dex11.htm | 205105 | 2021-05-20 16:20:09 |
| d176511dex41.htm | 212393 | 2021-05-20 16:20:09 |
| d176511dex51.htm | 10819 | 2021-05-20 16:20:09 |
| FilingSummary.xml | 1842 | 2021-05-20 16:20:09 |
| Financial_Report.xlsx | 6121 | 2021-05-20 16:20:09 |
| MetaLinks.json | 23263 | 2021-05-20 16:20:09 |
| R1.htm | 49707 | 2021-05-20 16:20:09 |
| report.css | 2767 | 2021-05-20 16:20:09 |
| Show.js | 1085 | 2021-05-20 16:20:09 |
| sr-20210520.xsd | 5351 | 2021-05-20 16:20:09 |
| sr-20210520_cal.xml | 675 | 2021-05-20 16:20:09 |
| sr-20210520_def.xml | 14534 | 2021-05-20 16:20:09 |
| sr-20210520_lab.xml | 22938 | 2021-05-20 16:20:09 |
| sr-20210520_pre.xml | 14859 | 2021-05-20 16:20:09 |