Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-13-132537-index-headers.html | 2013-03-28 16:56:00 | |
| 0001193125-13-132537-index.html | 2013-03-28 16:56:00 | |
| 0001193125-13-132537.txt | 2013-03-28 16:56:00 | |
 0001193125-13-132537-xbrl.zip | 24129 | 2013-03-28 16:56:00 |
| ck0000773757-20130315.xml | 52462 | 2013-03-28 16:56:00 |
| ck0000773757-20130315.xsd | 10372 | 2013-03-28 16:56:00 |
| ck0000773757-20130315_cal.xml | 9654 | 2013-03-28 16:56:00 |
| ck0000773757-20130315_def.xml | 12678 | 2013-03-28 16:56:00 |
| ck0000773757-20130315_lab.xml | 159552 | 2013-03-28 16:56:00 |
| ck0000773757-20130315_pre.xml | 122065 | 2013-03-28 16:56:00 |
| d510384d497.htm | 679 | 2013-03-28 16:56:00 |
| FilingSummary.xml | 3253 | 2013-03-28 16:56:00 |
| Financial_Report.xls | 127604 | 2013-03-28 16:56:00 |
| R1.htm | 62680 | 2013-03-28 16:56:00 |
| R10.htm | 154578 | 2013-03-28 16:56:00 |
| R2.htm | 44745 | 2013-03-28 16:56:00 |
| R3.htm | 51884 | 2013-03-28 16:56:00 |
| R4.htm | 53072 | 2013-03-28 16:56:00 |
| report.css | 2720 | 2013-03-28 16:56:00 |
| Show.js | 6423 | 2013-03-28 16:56:00 |