Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000896159-20-000003-index-headers.html | 2020-02-27 14:44:51 | |
| 0000896159-20-000003-index.html | 2020-02-27 14:44:51 | |
| 0000896159-20-000003.txt | 2020-02-27 14:44:51 | |
 0000896159-20-000003-xbrl.zip | 1319671 | 2020-02-27 14:44:51 |
| cb-12312019x10k.htm | 15580968 | 2020-02-27 14:44:51 |
| cb-12312019x10k_htm.xml | 19281013 | 2020-02-27 14:44:51 |
| cb-12312019xex1011.htm | 13410 | 2020-02-27 14:44:51 |
| cb-12312019xex211.htm | 340166 | 2020-02-27 14:44:51 |
| cb-12312019xex231.htm | 3619 | 2020-02-27 14:44:51 |
| cb-12312019xex311.htm | 10536 | 2020-02-27 14:44:51 |
| cb-12312019xex312.htm | 10834 | 2020-02-27 14:44:51 |
| cb-12312019xex321.htm | 4361 | 2020-02-27 14:44:51 |
| cb-12312019xex322.htm | 4178 | 2020-02-27 14:44:51 |
| cb-12312019xex441.htm | 96930 | 2020-02-27 14:44:51 |
| cb-20191231.xsd | 159628 | 2020-02-27 14:44:51 |
| cb-20191231_cal.xml | 301669 | 2020-02-27 14:44:51 |
| cb-20191231_def.xml | 1368187 | 2020-02-27 14:44:51 |
| cb-20191231_lab.xml | 2256667 | 2020-02-27 14:44:51 |
| cb-20191231_pre.xml | 1701264 | 2020-02-27 14:44:51 |
 chart-a63cd71b30bef31dafaa02.jpg | 48131 | 2020-02-27 14:44:51 |
| FilingSummary.xml | 99611 | 2020-02-27 14:44:51 |
| Financial_Report.xlsx | 311921 | 2020-02-27 14:44:51 |
| MetaLinks.json | 1858067 | 2020-02-27 14:44:51 |
| R1.htm | 79951 | 2020-02-27 14:44:51 |
| R10.htm | 129450 | 2020-02-27 14:44:51 |
| R100.htm | 13682 | 2020-02-27 14:44:51 |
| R101.htm | 32610 | 2020-02-27 14:44:51 |
| R102.htm | 30391 | 2020-02-27 14:44:51 |
| R103.htm | 120735 | 2020-02-27 14:44:51 |
| R104.htm | 64465 | 2020-02-27 14:44:51 |
| R105.htm | 76011 | 2020-02-27 14:44:51 |
| R106.htm | 21379 | 2020-02-27 14:44:51 |
| R107.htm | 37429 | 2020-02-27 14:44:51 |
| R108.htm | 27928 | 2020-02-27 14:44:51 |
| R109.htm | 22922 | 2020-02-27 14:44:51 |
| R11.htm | 12058 | 2020-02-27 14:44:51 |
| R110.htm | 51206 | 2020-02-27 14:44:51 |
| R111.htm | 9118 | 2020-02-27 14:44:51 |
| R112.htm | 16006 | 2020-02-27 14:44:51 |
| R113.htm | 19792 | 2020-02-27 14:44:51 |
| R114.htm | 60577 | 2020-02-27 14:44:51 |
| R115.htm | 15955 | 2020-02-27 14:44:51 |
| R116.htm | 13545 | 2020-02-27 14:44:51 |
| R117.htm | 39170 | 2020-02-27 14:44:51 |
| R118.htm | 34078 | 2020-02-27 14:44:51 |
| R119.htm | 58692 | 2020-02-27 14:44:51 |
| R12.htm | 534924 | 2020-02-27 14:44:51 |
| R120.htm | 66886 | 2020-02-27 14:44:51 |
| R121.htm | 18441 | 2020-02-27 14:44:51 |
| R122.htm | 20921 | 2020-02-27 14:44:51 |
| R123.htm | 15733 | 2020-02-27 14:44:51 |
| R124.htm | 76545 | 2020-02-27 14:44:51 |
| R125.htm | 28263 | 2020-02-27 14:44:51 |
| R126.htm | 22557 | 2020-02-27 14:44:51 |
| R127.htm | 71694 | 2020-02-27 14:44:51 |
| R128.htm | 23610 | 2020-02-27 14:44:51 |
| R129.htm | 17894 | 2020-02-27 14:44:51 |
| R13.htm | 528517 | 2020-02-27 14:44:51 |
| R130.htm | 143715 | 2020-02-27 14:44:51 |
| R131.htm | 68508 | 2020-02-27 14:44:51 |
| R132.htm | 13697 | 2020-02-27 14:44:51 |
| R133.htm | 31100 | 2020-02-27 14:44:51 |
| R134.htm | 40960 | 2020-02-27 14:44:51 |
| R135.htm | 20619 | 2020-02-27 14:44:51 |
| R136.htm | 157750 | 2020-02-27 14:44:51 |
| R137.htm | 96143 | 2020-02-27 14:44:51 |
| R138.htm | 187170 | 2020-02-27 14:44:51 |
| R139.htm | 32923 | 2020-02-27 14:44:51 |
| R14.htm | 156100 | 2020-02-27 14:44:51 |
| R140.htm | 12393 | 2020-02-27 14:44:51 |
| R141.htm | 52716 | 2020-02-27 14:44:51 |
| R142.htm | 63961 | 2020-02-27 14:44:51 |
| R143.htm | 41187 | 2020-02-27 14:44:51 |
| R144.htm | 42773 | 2020-02-27 14:44:51 |
| R145.htm | 37676 | 2020-02-27 14:44:51 |
| R146.htm | 29827 | 2020-02-27 14:44:51 |
| R15.htm | 104608 | 2020-02-27 14:44:51 |
| R16.htm | 2383655 | 2020-02-27 14:44:51 |
| R17.htm | 152272 | 2020-02-27 14:44:51 |
| R18.htm | 86535 | 2020-02-27 14:44:51 |
| R19.htm | 238576 | 2020-02-27 14:44:51 |
| R2.htm | 111426 | 2020-02-27 14:44:51 |
| R20.htm | 67111 | 2020-02-27 14:44:51 |
| R21.htm | 153167 | 2020-02-27 14:44:51 |
| R22.htm | 549703 | 2020-02-27 14:44:51 |
| R23.htm | 26534 | 2020-02-27 14:44:51 |
| R24.htm | 396567 | 2020-02-27 14:44:51 |
| R25.htm | 32607 | 2020-02-27 14:44:51 |
| R26.htm | 52761 | 2020-02-27 14:44:51 |
| R27.htm | 32156 | 2020-02-27 14:44:51 |
| R28.htm | 820409 | 2020-02-27 14:44:51 |
| R29.htm | 85422 | 2020-02-27 14:44:51 |
| R3.htm | 17004 | 2020-02-27 14:44:51 |
| R30.htm | 50259 | 2020-02-27 14:44:51 |
| R31.htm | 109767 | 2020-02-27 14:44:51 |
| R32.htm | 73001 | 2020-02-27 14:44:51 |
| R33.htm | 47578 | 2020-02-27 14:44:51 |
| R34.htm | 160458 | 2020-02-27 14:44:51 |
| R35.htm | 17153 | 2020-02-27 14:44:51 |
| R36.htm | 600292 | 2020-02-27 14:44:51 |
| R37.htm | 746216 | 2020-02-27 14:44:51 |
| R38.htm | 140785 | 2020-02-27 14:44:51 |
| R39.htm | 104006 | 2020-02-27 14:44:51 |
| R4.htm | 97679 | 2020-02-27 14:44:51 |
| R40.htm | 2246074 | 2020-02-27 14:44:51 |
| R41.htm | 145075 | 2020-02-27 14:44:51 |
| R42.htm | 73249 | 2020-02-27 14:44:51 |
| R43.htm | 214073 | 2020-02-27 14:44:51 |
| R44.htm | 54474 | 2020-02-27 14:44:51 |
| R45.htm | 138596 | 2020-02-27 14:44:51 |
| R46.htm | 695368 | 2020-02-27 14:44:51 |
| R47.htm | 25457 | 2020-02-27 14:44:51 |
| R48.htm | 385006 | 2020-02-27 14:44:51 |
| R49.htm | 32812 | 2020-02-27 14:44:51 |
| R5.htm | 9078 | 2020-02-27 14:44:51 |
| R50.htm | 50146 | 2020-02-27 14:44:51 |
| R51.htm | 25373 | 2020-02-27 14:44:51 |
| R52.htm | 820247 | 2020-02-27 14:44:51 |
| R53.htm | 84897 | 2020-02-27 14:44:51 |
| R54.htm | 141394 | 2020-02-27 14:44:51 |
| R55.htm | 16017 | 2020-02-27 14:44:51 |
| R56.htm | 32569 | 2020-02-27 14:44:51 |
| R57.htm | 54522 | 2020-02-27 14:44:51 |
| R58.htm | 34051 | 2020-02-27 14:44:51 |
| R59.htm | 34243 | 2020-02-27 14:44:51 |
| R6.htm | 71776 | 2020-02-27 14:44:51 |
| R60.htm | 73284 | 2020-02-27 14:44:51 |
| R61.htm | 23868 | 2020-02-27 14:44:51 |
| R62.htm | 19240 | 2020-02-27 14:44:51 |
| R63.htm | 103010 | 2020-02-27 14:44:51 |
| R64.htm | 13314 | 2020-02-27 14:44:51 |
| R65.htm | 27573 | 2020-02-27 14:44:51 |
| R66.htm | 33618 | 2020-02-27 14:44:51 |
| R67.htm | 44244 | 2020-02-27 14:44:51 |
| R68.htm | 32951 | 2020-02-27 14:44:51 |
| R69.htm | 13728 | 2020-02-27 14:44:51 |
| R7.htm | 19234 | 2020-02-27 14:44:51 |
| R70.htm | 45194 | 2020-02-27 14:44:51 |
| R71.htm | 15777 | 2020-02-27 14:44:51 |
| R72.htm | 130144 | 2020-02-27 14:44:51 |
| R73.htm | 33343 | 2020-02-27 14:44:51 |
| R74.htm | 67036 | 2020-02-27 14:44:51 |
| R75.htm | 48822 | 2020-02-27 14:44:51 |
| R76.htm | 81483 | 2020-02-27 14:44:51 |
| R77.htm | 30251 | 2020-02-27 14:44:51 |
| R78.htm | 24043 | 2020-02-27 14:44:51 |
| R79.htm | 27441 | 2020-02-27 14:44:51 |
| R8.htm | 128933 | 2020-02-27 14:44:51 |
| R80.htm | 26422 | 2020-02-27 14:44:51 |
| R81.htm | 19725 | 2020-02-27 14:44:51 |
| R82.htm | 41118 | 2020-02-27 14:44:51 |
| R83.htm | 13477 | 2020-02-27 14:44:51 |
| R84.htm | 23414 | 2020-02-27 14:44:51 |
| R85.htm | 38555 | 2020-02-27 14:44:51 |
| R86.htm | 28524 | 2020-02-27 14:44:51 |
| R87.htm | 32786 | 2020-02-27 14:44:51 |
| R88.htm | 49115 | 2020-02-27 14:44:51 |
| R89.htm | 494647 | 2020-02-27 14:44:51 |
| R9.htm | 4579 | 2020-02-27 14:44:51 |
| R90.htm | 30121 | 2020-02-27 14:44:51 |
| R91.htm | 68433 | 2020-02-27 14:44:51 |
| R92.htm | 119430 | 2020-02-27 14:44:51 |
| R93.htm | 48480 | 2020-02-27 14:44:51 |
| R94.htm | 42717 | 2020-02-27 14:44:51 |
| R95.htm | 312527 | 2020-02-27 14:44:51 |
| R96.htm | 55166 | 2020-02-27 14:44:51 |
| R97.htm | 22477 | 2020-02-27 14:44:51 |
| R98.htm | 23191 | 2020-02-27 14:44:51 |
| R99.htm | 59522 | 2020-02-27 14:44:51 |
| report.css | 2767 | 2020-02-27 14:44:51 |
| Show.js | 1085 | 2020-02-27 14:44:51 |