Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-12-457787-index-headers.html | 2012-11-07 17:19:30 | |
| 0001193125-12-457787-index.html | 2012-11-07 17:19:30 | |
| 0001193125-12-457787.txt | 2012-11-07 17:19:30 | |
 0001193125-12-457787-xbrl.zip | 1127239 | 2012-11-07 17:19:30 |
| d433523d10q.htm | 5670339 | 2012-11-07 17:19:30 |
| d433523dex21.htm | 479589 | 2012-11-07 17:19:30 |
| d433523dex311.htm | 10079 | 2012-11-07 17:19:30 |
| d433523dex3110.htm | 10109 | 2012-11-07 17:19:30 |
| d433523dex312.htm | 10091 | 2012-11-07 17:19:30 |
| d433523dex313.htm | 10077 | 2012-11-07 17:19:30 |
| d433523dex314.htm | 10067 | 2012-11-07 17:19:30 |
| d433523dex315.htm | 10092 | 2012-11-07 17:19:30 |
| d433523dex316.htm | 10183 | 2012-11-07 17:19:30 |
| d433523dex317.htm | 10107 | 2012-11-07 17:19:30 |
| d433523dex318.htm | 10269 | 2012-11-07 17:19:30 |
| d433523dex319.htm | 10195 | 2012-11-07 17:19:30 |
| d433523dex321.htm | 2415 | 2012-11-07 17:19:30 |
| d433523dex3210.htm | 2496 | 2012-11-07 17:19:30 |
| d433523dex322.htm | 2422 | 2012-11-07 17:19:30 |
| d433523dex323.htm | 2435 | 2012-11-07 17:19:30 |
| d433523dex324.htm | 2425 | 2012-11-07 17:19:30 |
| d433523dex325.htm | 2447 | 2012-11-07 17:19:30 |
| d433523dex326.htm | 2465 | 2012-11-07 17:19:30 |
| d433523dex327.htm | 2405 | 2012-11-07 17:19:30 |
| d433523dex328.htm | 2444 | 2012-11-07 17:19:30 |
| d433523dex329.htm | 2533 | 2012-11-07 17:19:30 |
| exc-20120930.xml | 11615108 | 2012-11-07 17:19:30 |
| exc-20120930.xsd | 489582 | 2012-11-07 17:19:30 |
| exc-20120930_cal.xml | 364116 | 2012-11-07 17:19:30 |
| exc-20120930_def.xml | 2200141 | 2012-11-07 17:19:30 |
| exc-20120930_lab.xml | 3427036 | 2012-11-07 17:19:30 |
| exc-20120930_pre.xml | 2372081 | 2012-11-07 17:19:30 |
| FilingSummary.xml | 41486 | 2012-11-07 17:19:30 |
| Financial_Report.xls | 11497771 | 2012-11-07 17:19:30 |
| R1.htm | 36902 | 2012-11-07 17:19:30 |
| R10.htm | 469409 | 2012-11-07 17:19:30 |
| R11.htm | 262645 | 2012-11-07 17:19:30 |
| R12.htm | 63609 | 2012-11-07 17:19:30 |
| R13.htm | 14946 | 2012-11-07 17:19:30 |
| R14.htm | 1135763 | 2012-11-07 17:19:30 |
| R15.htm | 563040 | 2012-11-07 17:19:30 |
| R16.htm | 115240 | 2012-11-07 17:19:30 |
| R17.htm | 167491 | 2012-11-07 17:19:30 |
| R18.htm | 58461 | 2012-11-07 17:19:30 |
| R19.htm | 111460 | 2012-11-07 17:19:30 |
| R2.htm | 232007 | 2012-11-07 17:19:30 |
| R20.htm | 130290 | 2012-11-07 17:19:30 |
| R21.htm | 23388 | 2012-11-07 17:19:30 |
| R22.htm | 140518 | 2012-11-07 17:19:30 |
| R23.htm | 26946 | 2012-11-07 17:19:30 |
| R24.htm | 305651 | 2012-11-07 17:19:30 |
| R25.htm | 425700 | 2012-11-07 17:19:30 |
| R26.htm | 222127 | 2012-11-07 17:19:30 |
| R27.htm | 11387 | 2012-11-07 17:19:30 |
| R28.htm | 31128 | 2012-11-07 17:19:30 |
| R29.htm | 43214 | 2012-11-07 17:19:30 |
| R3.htm | 224468 | 2012-11-07 17:19:30 |
| R30.htm | 371219 | 2012-11-07 17:19:30 |
| R31.htm | 198854 | 2012-11-07 17:19:30 |
| R32.htm | 45711 | 2012-11-07 17:19:30 |
| R33.htm | 1100393 | 2012-11-07 17:19:30 |
| R34.htm | 467196 | 2012-11-07 17:19:30 |
| R35.htm | 30022 | 2012-11-07 17:19:30 |
| R36.htm | 67371 | 2012-11-07 17:19:30 |
| R37.htm | 139636 | 2012-11-07 17:19:30 |
| R38.htm | 29091 | 2012-11-07 17:19:30 |
| R39.htm | 52194 | 2012-11-07 17:19:30 |
| R4.htm | 517557 | 2012-11-07 17:19:30 |
| R40.htm | 102601 | 2012-11-07 17:19:30 |
| R41.htm | 44934 | 2012-11-07 17:19:30 |
| R42.htm | 120529 | 2012-11-07 17:19:30 |
| R43.htm | 23224 | 2012-11-07 17:19:30 |
| R44.htm | 164976 | 2012-11-07 17:19:30 |
| R45.htm | 423376 | 2012-11-07 17:19:30 |
| R46.htm | 208424 | 2012-11-07 17:19:30 |
| R47.htm | 6611 | 2012-11-07 17:19:30 |
| R48.htm | 104952 | 2012-11-07 17:19:30 |
| R49.htm | 1481784 | 2012-11-07 17:19:30 |
| R5.htm | 26769 | 2012-11-07 17:19:30 |
| R50.htm | 714985 | 2012-11-07 17:19:30 |
| R51.htm | 81137 | 2012-11-07 17:19:30 |
| R52.htm | 17396 | 2012-11-07 17:19:30 |
| R53.htm | 27538 | 2012-11-07 17:19:30 |
| R54.htm | 25880 | 2012-11-07 17:19:30 |
| R55.htm | 52333 | 2012-11-07 17:19:30 |
| R56.htm | 492962 | 2012-11-07 17:19:30 |
| R57.htm | 166886 | 2012-11-07 17:19:30 |
| R58.htm | 16066 | 2012-11-07 17:19:30 |
| R59.htm | 80758 | 2012-11-07 17:19:30 |
| R6.htm | 108391 | 2012-11-07 17:19:30 |
| R60.htm | 29224 | 2012-11-07 17:19:30 |
| R61.htm | 98841 | 2012-11-07 17:19:30 |
| R62.htm | 457020 | 2012-11-07 17:19:30 |
| R63.htm | 52346 | 2012-11-07 17:19:30 |
| R64.htm | 38625 | 2012-11-07 17:19:30 |
| R65.htm | 274827 | 2012-11-07 17:19:30 |
| R66.htm | 221428 | 2012-11-07 17:19:30 |
| R67.htm | 93560 | 2012-11-07 17:19:30 |
| R68.htm | 107191 | 2012-11-07 17:19:30 |
| R69.htm | 222975 | 2012-11-07 17:19:30 |
| R7.htm | 7206 | 2012-11-07 17:19:30 |
| R70.htm | 23169 | 2012-11-07 17:19:30 |
| R71.htm | 9362 | 2012-11-07 17:19:30 |
| R72.htm | 21607 | 2012-11-07 17:19:30 |
| R73.htm | 19990 | 2012-11-07 17:19:30 |
| R74.htm | 411300 | 2012-11-07 17:19:30 |
| R75.htm | 35237 | 2012-11-07 17:19:30 |
| R76.htm | 644349 | 2012-11-07 17:19:30 |
| R77.htm | 113776 | 2012-11-07 17:19:30 |
| R78.htm | 179858 | 2012-11-07 17:19:30 |
| R79.htm | 97302 | 2012-11-07 17:19:30 |
| R8.htm | 75994 | 2012-11-07 17:19:30 |
| R80.htm | 181347 | 2012-11-07 17:19:30 |
| R81.htm | 107424 | 2012-11-07 17:19:30 |
| R82.htm | 50692 | 2012-11-07 17:19:30 |
| R83.htm | 16866 | 2012-11-07 17:19:30 |
| R9.htm | 13410 | 2012-11-07 17:19:30 |
| report.css | 2721 | 2012-11-07 17:19:30 |
| Show.js | 6423 | 2012-11-07 17:19:30 |