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| 0000068622-20-000006-index.html | 2020-05-08 16:32:30 | |
| 0000068622-20-000006.txt | 2020-05-08 16:32:30 | |
 0000068622-20-000006-xbrl.zip | 174231 | 2020-05-08 16:32:30 |
| ctl-20200331.xsd | 34184 | 2020-05-08 16:32:30 |
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| ctq2020033110qex321.htm | 6617 | 2020-05-08 16:32:30 |
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| ctq2020033110q_htm.xml | 539535 | 2020-05-08 16:32:30 |
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| report.css | 2767 | 2020-05-08 16:32:30 |
| Show.js | 1085 | 2020-05-08 16:32:30 |