Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000018926-16-000047-index-headers.html | 2016-02-24 17:39:52 | |
| 0000018926-16-000047-index.html | 2016-02-24 17:39:52 | |
| 0000018926-16-000047.txt | 2016-02-24 17:39:52 | |
 0000018926-16-000047-xbrl.zip | 459414 | 2016-02-24 17:39:52 |
| ctl-20151231.xml | 4348823 | 2016-02-24 17:39:52 |
| ctl-20151231.xsd | 84274 | 2016-02-24 17:39:52 |
| ctl-2015123110k.htm | 3268855 | 2016-02-24 17:39:52 |
| ctl-20151231ex12.htm | 49798 | 2016-02-24 17:39:52 |
| ctl-20151231ex21.htm | 205607 | 2016-02-24 17:39:52 |
| ctl-20151231ex23.htm | 4083 | 2016-02-24 17:39:52 |
| ctl-20151231ex311.htm | 12222 | 2016-02-24 17:39:52 |
| ctl-20151231ex312.htm | 12459 | 2016-02-24 17:39:52 |
| ctl-20151231ex32.htm | 6673 | 2016-02-24 17:39:52 |
| ctl-20151231_cal.xml | 146018 | 2016-02-24 17:39:52 |
| ctl-20151231_def.xml | 507533 | 2016-02-24 17:39:52 |
| ctl-20151231_lab.xml | 1424872 | 2016-02-24 17:39:52 |
| ctl-20151231_pre.xml | 800661 | 2016-02-24 17:39:52 |
 ctllogo1a01.jpg | 17400 | 2016-02-24 17:39:52 |
| FilingSummary.xml | 52236 | 2016-02-24 17:39:52 |
| Financial_Report.xlsx | 160174 | 2016-02-24 17:39:52 |
| R1.htm | 28413 | 2016-02-24 17:39:52 |
| R10.htm | 56394 | 2016-02-24 17:39:52 |
| R11.htm | 70586 | 2016-02-24 17:39:52 |
| R12.htm | 111801 | 2016-02-24 17:39:52 |
| R13.htm | 32151 | 2016-02-24 17:39:52 |
| R14.htm | 53133 | 2016-02-24 17:39:52 |
| R15.htm | 25370 | 2016-02-24 17:39:52 |
| R16.htm | 611651 | 2016-02-24 17:39:52 |
| R17.htm | 45655 | 2016-02-24 17:39:52 |
| R18.htm | 46718 | 2016-02-24 17:39:52 |
| R19.htm | 25472 | 2016-02-24 17:39:52 |
| R2.htm | 55136 | 2016-02-24 17:39:52 |
| R20.htm | 137616 | 2016-02-24 17:39:52 |
| R21.htm | 147763 | 2016-02-24 17:39:52 |
| R22.htm | 54195 | 2016-02-24 17:39:52 |
| R23.htm | 59497 | 2016-02-24 17:39:52 |
| R24.htm | 32968 | 2016-02-24 17:39:52 |
| R25.htm | 7663 | 2016-02-24 17:39:52 |
| R26.htm | 6507 | 2016-02-24 17:39:52 |
| R27.htm | 79767 | 2016-02-24 17:39:52 |
| R28.htm | 37621 | 2016-02-24 17:39:52 |
| R29.htm | 94070 | 2016-02-24 17:39:52 |
| R3.htm | 21316 | 2016-02-24 17:39:52 |
| R30.htm | 60435 | 2016-02-24 17:39:52 |
| R31.htm | 89234 | 2016-02-24 17:39:52 |
| R32.htm | 33227 | 2016-02-24 17:39:52 |
| R33.htm | 50355 | 2016-02-24 17:39:52 |
| R34.htm | 21857 | 2016-02-24 17:39:52 |
| R35.htm | 587531 | 2016-02-24 17:39:52 |
| R36.htm | 28308 | 2016-02-24 17:39:52 |
| R37.htm | 44045 | 2016-02-24 17:39:52 |
| R38.htm | 24437 | 2016-02-24 17:39:52 |
| R39.htm | 133518 | 2016-02-24 17:39:52 |
| R4.htm | 10075 | 2016-02-24 17:39:52 |
| R40.htm | 129396 | 2016-02-24 17:39:52 |
| R41.htm | 50860 | 2016-02-24 17:39:52 |
| R42.htm | 46192 | 2016-02-24 17:39:52 |
| R43.htm | 31741 | 2016-02-24 17:39:52 |
| R44.htm | 79180 | 2016-02-24 17:39:52 |
| R45.htm | 32840 | 2016-02-24 17:39:52 |
| R46.htm | 14490 | 2016-02-24 17:39:52 |
| R47.htm | 22512 | 2016-02-24 17:39:52 |
| R48.htm | 17832 | 2016-02-24 17:39:52 |
| R49.htm | 16527 | 2016-02-24 17:39:52 |
| R5.htm | 94944 | 2016-02-24 17:39:52 |
| R50.htm | 12029 | 2016-02-24 17:39:52 |
| R51.htm | 50742 | 2016-02-24 17:39:52 |
| R52.htm | 25049 | 2016-02-24 17:39:52 |
| R53.htm | 13386 | 2016-02-24 17:39:52 |
| R54.htm | 21853 | 2016-02-24 17:39:52 |
| R55.htm | 25841 | 2016-02-24 17:39:52 |
| R56.htm | 19402 | 2016-02-24 17:39:52 |
| R57.htm | 64031 | 2016-02-24 17:39:52 |
| R58.htm | 242149 | 2016-02-24 17:39:52 |
| R59.htm | 29224 | 2016-02-24 17:39:52 |
| R6.htm | 23194 | 2016-02-24 17:39:52 |
| R60.htm | 20244 | 2016-02-24 17:39:52 |
| R61.htm | 26016 | 2016-02-24 17:39:52 |
| R62.htm | 48980 | 2016-02-24 17:39:52 |
| R63.htm | 14235 | 2016-02-24 17:39:52 |
| R64.htm | 32670 | 2016-02-24 17:39:52 |
| R65.htm | 404793 | 2016-02-24 17:39:52 |
| R66.htm | 764825 | 2016-02-24 17:39:52 |
| R67.htm | 7674 | 2016-02-24 17:39:52 |
| R68.htm | 154785 | 2016-02-24 17:39:52 |
| R69.htm | 56535 | 2016-02-24 17:39:52 |
| R7.htm | 95150 | 2016-02-24 17:39:52 |
| R70.htm | 10130 | 2016-02-24 17:39:52 |
| R71.htm | 163697 | 2016-02-24 17:39:52 |
| R72.htm | 17203 | 2016-02-24 17:39:52 |
| R73.htm | 29687 | 2016-02-24 17:39:52 |
| R74.htm | 81997 | 2016-02-24 17:39:52 |
| R75.htm | 36420 | 2016-02-24 17:39:52 |
| R76.htm | 35913 | 2016-02-24 17:39:52 |
| R77.htm | 108745 | 2016-02-24 17:39:52 |
| R78.htm | 49580 | 2016-02-24 17:39:52 |
| R79.htm | 15525 | 2016-02-24 17:39:52 |
| R8.htm | 4522 | 2016-02-24 17:39:52 |
| R80.htm | 14514 | 2016-02-24 17:39:52 |
| R81.htm | 26281 | 2016-02-24 17:39:52 |
| R82.htm | 29628 | 2016-02-24 17:39:52 |
| R83.htm | 7645 | 2016-02-24 17:39:52 |
| R9.htm | 37261 | 2016-02-24 17:39:52 |
| report.css | 2768 | 2016-02-24 17:39:52 |
| Show.js | 1410 | 2016-02-24 17:39:52 |