Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001145549-25-028832-index-headers.html | 2025-05-05 13:02:48 | |
| 0001145549-25-028832-index.html | 2025-05-05 13:02:48 | |
| 0001145549-25-028832.txt | 2025-05-05 13:02:48 | |
 0001145549-25-028832-xbrl.zip | 1500673 | 2025-05-05 13:02:48 |
| 302_Certification.htm | 32231 | 2025-05-05 13:02:48 |
| 8dd8346fc53045a.htm | 1890096 | 2025-05-05 13:02:48 |
| 8dd8346fc53045a_htm.xml | 480692 | 2025-05-05 13:02:48 |
| 906_Certification.htm | 8037 | 2025-05-05 13:02:48 |
 chartimages_3591311.jpg | 134306 | 2025-05-05 13:02:48 |
 chartimages_3591314.jpg | 15889 | 2025-05-05 13:02:48 |
 chartimages_3591316.jpg | 73106 | 2025-05-05 13:02:48 |
 chartimages_3591339.jpg | 73106 | 2025-05-05 13:02:48 |
 chartimages_3591342.jpg | 137123 | 2025-05-05 13:02:48 |
 chartimages_3591343.jpg | 15889 | 2025-05-05 13:02:48 |
 chartimages_3591351.jpg | 15889 | 2025-05-05 13:02:48 |
 chartimages_3591358.jpg | 73106 | 2025-05-05 13:02:48 |
 chartimages_3591362.jpg | 137185 | 2025-05-05 13:02:48 |
 chartimages_3591369.jpg | 73106 | 2025-05-05 13:02:48 |
 chartimages_3591372.jpg | 138111 | 2025-05-05 13:02:48 |
 chartimages_3591373.jpg | 15889 | 2025-05-05 13:02:48 |
 chartimages_3591399.jpg | 73106 | 2025-05-05 13:02:48 |
 chartimages_3591402.jpg | 133647 | 2025-05-05 13:02:48 |
 chartimages_3591403.jpg | 15889 | 2025-05-05 13:02:48 |
 chartimages_3591429.jpg | 73106 | 2025-05-05 13:02:48 |
 chartimages_3591432.jpg | 146144 | 2025-05-05 13:02:48 |
 chartimages_3591433.jpg | 15889 | 2025-05-05 13:02:48 |
| cik0001097519-20250228.xsd | 7690 | 2025-05-05 13:02:48 |
| cik0001097519-20250228_def.xml | 11005 | 2025-05-05 13:02:48 |
| cik0001097519-20250228_lab.xml | 17350 | 2025-05-05 13:02:48 |
| cik0001097519-20250228_pre.xml | 25949 | 2025-05-05 13:02:48 |
| Code_of_Ethics.htm | 67683 | 2025-05-05 13:02:48 |
| FilingSummary.xml | 4964 | 2025-05-05 13:02:48 |
| Financial_Report.xlsx | 22486 | 2025-05-05 13:02:48 |
 g19yqxgm0j7e79eld1i6l.jpg | 729 | 2025-05-05 13:02:48 |
 g534wnohvys6yxmya6n23.jpg | 49493 | 2025-05-05 13:02:48 |
 g5414rrif4oon9gx93brd.jpg | 49493 | 2025-05-05 13:02:48 |
 gb7cpvyq8her819xpuw1d.jpg | 49493 | 2025-05-05 13:02:48 |
 gonu8hn0zwypg12yvbckr.jpg | 49493 | 2025-05-05 13:02:48 |
 gry5uj9yqrwh778hysb9t.jpg | 49493 | 2025-05-05 13:02:48 |
 guw0t4adai8x87p5kiyls.jpg | 49493 | 2025-05-05 13:02:48 |
 gx1wkquwxsuqfdh48krga.jpg | 49493 | 2025-05-05 13:02:48 |
 images_1902.jpg | 24911 | 2025-05-05 13:02:48 |
 images_1913.jpg | 109128 | 2025-05-05 13:02:48 |
 img6bf64f072.jpg | 38453 | 2025-05-05 13:02:48 |
 imgd8eeb9381.jpg | 250062 | 2025-05-05 13:02:48 |
| MetaLinks.json | 101061 | 2025-05-05 13:02:48 |
| R1.htm | 12718 | 2025-05-05 13:02:48 |
| R2.htm | 336840 | 2025-05-05 13:02:48 |
| R3.htm | 38787 | 2025-05-05 13:02:48 |
| R4.htm | 30090 | 2025-05-05 13:02:48 |
| R5.htm | 151878 | 2025-05-05 13:02:48 |
| report.css | 2767 | 2025-05-05 13:02:48 |
| Show.js | 1085 | 2025-05-05 13:02:48 |