Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-15-177176-index-headers.html | 2015-05-07 16:25:01 | |
| 0001193125-15-177176-index.html | 2015-05-07 16:25:01 | |
| 0001193125-15-177176.txt | 2015-05-07 16:25:01 | |
 0001193125-15-177176-xbrl.zip | 171373 | 2015-05-07 16:25:01 |
| cbt-20150331.xml | 1219750 | 2015-05-07 16:25:01 |
| cbt-20150331.xsd | 61065 | 2015-05-07 16:25:01 |
| cbt-20150331_cal.xml | 114843 | 2015-05-07 16:25:01 |
| cbt-20150331_def.xml | 234978 | 2015-05-07 16:25:01 |
| cbt-20150331_lab.xml | 517255 | 2015-05-07 16:25:01 |
| cbt-20150331_pre.xml | 398652 | 2015-05-07 16:25:01 |
| d907301d10q.htm | 706992 | 2015-05-07 16:25:01 |
| d907301dex311.htm | 8635 | 2015-05-07 16:25:01 |
| d907301dex312.htm | 8632 | 2015-05-07 16:25:01 |
| d907301dex32.htm | 3808 | 2015-05-07 16:25:01 |
| FilingSummary.xml | 40898 | 2015-05-07 16:25:01 |
| Financial_Report.xls | 1023498 | 2015-05-07 16:25:01 |
| Financial_Report.xlsx | 224057 | 2015-05-07 16:25:01 |
| R1.htm | 29559 | 2015-05-07 16:25:01 |
| R10.htm | 36902 | 2015-05-07 16:25:01 |
| R11.htm | 27512 | 2015-05-07 16:25:01 |
| R12.htm | 9126 | 2015-05-07 16:25:01 |
| R13.htm | 46340 | 2015-05-07 16:25:01 |
| R14.htm | 32005 | 2015-05-07 16:25:01 |
| R15.htm | 17540 | 2015-05-07 16:25:01 |
| R16.htm | 54101 | 2015-05-07 16:25:01 |
| R17.htm | 26159 | 2015-05-07 16:25:01 |
| R18.htm | 9599 | 2015-05-07 16:25:01 |
| R19.htm | 58854 | 2015-05-07 16:25:01 |
| R2.htm | 120248 | 2015-05-07 16:25:01 |
| R20.htm | 43208 | 2015-05-07 16:25:01 |
| R21.htm | 13943 | 2015-05-07 16:25:01 |
| R22.htm | 21741 | 2015-05-07 16:25:01 |
| R23.htm | 9567 | 2015-05-07 16:25:01 |
| R24.htm | 63464 | 2015-05-07 16:25:01 |
| R25.htm | 65453 | 2015-05-07 16:25:01 |
| R26.htm | 10892 | 2015-05-07 16:25:01 |
| R27.htm | 22778 | 2015-05-07 16:25:01 |
| R28.htm | 43643 | 2015-05-07 16:25:01 |
| R29.htm | 28998 | 2015-05-07 16:25:01 |
| R3.htm | 56340 | 2015-05-07 16:25:01 |
| R30.htm | 10245 | 2015-05-07 16:25:01 |
| R31.htm | 55645 | 2015-05-07 16:25:01 |
| R32.htm | 17659 | 2015-05-07 16:25:01 |
| R33.htm | 61211 | 2015-05-07 16:25:01 |
| R34.htm | 36107 | 2015-05-07 16:25:01 |
| R35.htm | 10593 | 2015-05-07 16:25:01 |
| R36.htm | 58039 | 2015-05-07 16:25:01 |
| R37.htm | 13786 | 2015-05-07 16:25:01 |
| R38.htm | 22320 | 2015-05-07 16:25:01 |
| R39.htm | 39217 | 2015-05-07 16:25:01 |
| R4.htm | 16156 | 2015-05-07 16:25:01 |
| R40.htm | 50937 | 2015-05-07 16:25:01 |
| R41.htm | 67890 | 2015-05-07 16:25:01 |
| R42.htm | 53781 | 2015-05-07 16:25:01 |
| R43.htm | 22668 | 2015-05-07 16:25:01 |
| R44.htm | 52627 | 2015-05-07 16:25:01 |
| R45.htm | 21566 | 2015-05-07 16:25:01 |
| R46.htm | 37239 | 2015-05-07 16:25:01 |
| R47.htm | 25822 | 2015-05-07 16:25:01 |
| R48.htm | 21146 | 2015-05-07 16:25:01 |
| R49.htm | 51347 | 2015-05-07 16:25:01 |
| R5.htm | 160314 | 2015-05-07 16:25:01 |
| R50.htm | 37833 | 2015-05-07 16:25:01 |
| R51.htm | 46381 | 2015-05-07 16:25:01 |
| R52.htm | 45728 | 2015-05-07 16:25:01 |
| R53.htm | 28274 | 2015-05-07 16:25:01 |
| R54.htm | 21521 | 2015-05-07 16:25:01 |
| R55.htm | 82113 | 2015-05-07 16:25:01 |
| R56.htm | 26386 | 2015-05-07 16:25:01 |
| R57.htm | 8335 | 2015-05-07 16:25:01 |
| R58.htm | 16911 | 2015-05-07 16:25:01 |
| R59.htm | 50676 | 2015-05-07 16:25:01 |
| R6.htm | 37491 | 2015-05-07 16:25:01 |
| R60.htm | 207789 | 2015-05-07 16:25:01 |
| R61.htm | 45973 | 2015-05-07 16:25:01 |
| R62.htm | 6901 | 2015-05-07 16:25:01 |
| R63.htm | 7792 | 2015-05-07 16:25:01 |
| R64.htm | 21540 | 2015-05-07 16:25:01 |
| R65.htm | 11425 | 2015-05-07 16:25:01 |
| R66.htm | 55749 | 2015-05-07 16:25:01 |
| R67.htm | 6650 | 2015-05-07 16:25:01 |
| R68.htm | 18049 | 2015-05-07 16:25:01 |
| R69.htm | 6788 | 2015-05-07 16:25:01 |
| R7.htm | 132376 | 2015-05-07 16:25:01 |
| R70.htm | 34396 | 2015-05-07 16:25:01 |
| R71.htm | 37667 | 2015-05-07 16:25:01 |
| R72.htm | 23323 | 2015-05-07 16:25:01 |
| R8.htm | 6049 | 2015-05-07 16:25:01 |
| R9.htm | 10696 | 2015-05-07 16:25:01 |
| report.css | 2740 | 2015-05-07 16:25:01 |
| Show.js | 1410 | 2015-05-07 16:25:01 |