Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-13-009397-index-headers.html | 2013-01-10 16:25:26 | |
| 0001193125-13-009397-index.html | 2013-01-10 16:25:26 | |
| 0001193125-13-009397.txt | 2013-01-10 16:25:26 | |
 0001193125-13-009397-xbrl.zip | 20334 | 2013-01-10 16:25:26 |
 BarChart1.jpg | 27464 | 2013-01-10 16:25:26 |
 BarChart2.jpg | 27464 | 2013-01-10 16:25:26 |
| cik0000773757-2013010401.xml | 10814 | 2013-01-10 16:25:26 |
| cik0000773757-2013010401.xsd | 6642 | 2013-01-10 16:25:26 |
| cik0000773757-2013010401_cal.xml | 5074 | 2013-01-10 16:25:26 |
| cik0000773757-2013010401_def.xml | 8398 | 2013-01-10 16:25:26 |
| cik0000773757-2013010401_lab.xml | 152848 | 2013-01-10 16:25:26 |
| cik0000773757-2013010401_pre.xml | 77560 | 2013-01-10 16:25:26 |
| d463849d497.htm | 672 | 2013-01-10 16:25:26 |
| FilingSummary.xml | 2894 | 2013-01-10 16:25:26 |
| Financial_Report.xls | 102312 | 2013-01-10 16:25:26 |
| R1.htm | 24746 | 2013-01-10 16:25:26 |
| R2.htm | 24746 | 2013-01-10 16:25:26 |
| R3.htm | 34738 | 2013-01-10 16:25:26 |
| R5.htm | 85704 | 2013-01-10 16:25:26 |
| report.css | 2720 | 2013-01-10 16:25:26 |
| Show.js | 6423 | 2013-01-10 16:25:26 |