Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-20-217676-index-headers.html | 2020-08-12 16:25:35 | |
| 0001193125-20-217676-index.html | 2020-08-12 16:25:35 | |
| 0001193125-20-217676.txt | 2020-08-12 16:25:35 | |
 0001193125-20-217676-xbrl.zip | 144926 | 2020-08-12 16:25:35 |
| ctl-20200812.xsd | 5171 | 2020-08-12 16:25:35 |
| ctl-20200812_cal.xml | 679 | 2020-08-12 16:25:35 |
| ctl-20200812_def.xml | 14506 | 2020-08-12 16:25:35 |
| ctl-20200812_lab.xml | 19242 | 2020-08-12 16:25:35 |
| ctl-20200812_pre.xml | 14765 | 2020-08-12 16:25:35 |
| d58325d8k.htm | 86312 | 2020-08-12 16:25:35 |
| d58325d8k_htm.xml | 6939 | 2020-08-12 16:25:35 |
| d58325dex41.htm | 760760 | 2020-08-12 16:25:35 |
| d58325dex991.htm | 8293 | 2020-08-12 16:25:35 |
| FilingSummary.xml | 1809 | 2020-08-12 16:25:35 |
| Financial_Report.xlsx | 5774 | 2020-08-12 16:25:35 |
 g58325g0812061510258.jpg | 32927 | 2020-08-12 16:25:35 |
| MetaLinks.json | 22371 | 2020-08-12 16:25:35 |
| R1.htm | 48693 | 2020-08-12 16:25:35 |
| report.css | 2767 | 2020-08-12 16:25:35 |
| Show.js | 1085 | 2020-08-12 16:25:35 |