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|---|---|---|
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| 0000024491-18-000006-index.html | 2018-04-30 12:18:51 | |
| 0000024491-18-000006.txt | 2018-04-30 12:18:51 | |
 0000024491-18-000006-xbrl.zip | 181257 | 2018-04-30 12:18:51 |
| ctb-03312018x10q.htm | 962738 | 2018-04-30 12:18:51 |
| ctb-03312018xex311.htm | 11879 | 2018-04-30 12:18:51 |
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| ctb-03312018xex32.htm | 7842 | 2018-04-30 12:18:51 |
| ctb-20180331.xml | 1377572 | 2018-04-30 12:18:51 |
| ctb-20180331.xsd | 45782 | 2018-04-30 12:18:51 |
| ctb-20180331_cal.xml | 106784 | 2018-04-30 12:18:51 |
| ctb-20180331_def.xml | 191627 | 2018-04-30 12:18:51 |
| ctb-20180331_lab.xml | 578742 | 2018-04-30 12:18:51 |
| ctb-20180331_pre.xml | 350734 | 2018-04-30 12:18:51 |
| FilingSummary.xml | 38917 | 2018-04-30 12:18:51 |
| Financial_Report.xlsx | 76034 | 2018-04-30 12:18:51 |
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| report.css | 2767 | 2018-04-30 12:18:51 |
| Show.js | 1410 | 2018-04-30 12:18:51 |