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|---|---|---|
 0000027879-22-000002-index-headers.html | 2022-02-15 15:28:52 | |
| 0000027879-22-000002-index.html | 2022-02-15 15:28:52 | |
| 0000027879-22-000002.txt | 2022-02-15 15:28:52 | |
 0000027879-22-000002-xbrl.zip | 54501 | 2022-02-15 15:28:52 |
| exc-20220215.htm | 84105 | 2022-02-15 15:28:52 |
| exc-20220215.xsd | 4465 | 2022-02-15 15:28:52 |
| exc-20220215ex42.htm | 89867 | 2022-02-15 15:28:52 |
 exc-20220215ex42001.jpg | 60378 | 2022-02-15 15:28:52 |
 exc-20220215ex42002.jpg | 114178 | 2022-02-15 15:28:52 |
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 exc-20220215ex42006.jpg | 345012 | 2022-02-15 15:28:52 |
 exc-20220215ex42007.jpg | 319910 | 2022-02-15 15:28:52 |
 exc-20220215ex42008.jpg | 306797 | 2022-02-15 15:28:52 |
 exc-20220215ex42009.jpg | 225331 | 2022-02-15 15:28:52 |
 exc-20220215ex42010.jpg | 259569 | 2022-02-15 15:28:52 |
 exc-20220215ex42011.jpg | 300652 | 2022-02-15 15:28:52 |
 exc-20220215ex42012.jpg | 346245 | 2022-02-15 15:28:52 |
 exc-20220215ex42013.jpg | 249358 | 2022-02-15 15:28:52 |
 exc-20220215ex42014.jpg | 316962 | 2022-02-15 15:28:52 |
 exc-20220215ex42015.jpg | 318951 | 2022-02-15 15:28:52 |
 exc-20220215ex42016.jpg | 342919 | 2022-02-15 15:28:52 |
 exc-20220215ex42017.jpg | 320684 | 2022-02-15 15:28:52 |
 exc-20220215ex42018.jpg | 199376 | 2022-02-15 15:28:52 |
 exc-20220215ex42019.jpg | 55876 | 2022-02-15 15:28:52 |
 exc-20220215ex42020.jpg | 32275 | 2022-02-15 15:28:52 |
 exc-20220215ex42021.jpg | 83712 | 2022-02-15 15:28:52 |
 exc-20220215ex42022.jpg | 89045 | 2022-02-15 15:28:52 |
 exc-20220215ex42023.jpg | 44790 | 2022-02-15 15:28:52 |
| exc-20220215ex44.htm | 61336 | 2022-02-15 15:28:52 |
 exc-20220215ex44001.jpg | 56124 | 2022-02-15 15:28:52 |
 exc-20220215ex44002.jpg | 258641 | 2022-02-15 15:28:52 |
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 exc-20220215ex44006.jpg | 306600 | 2022-02-15 15:28:52 |
 exc-20220215ex44007.jpg | 305186 | 2022-02-15 15:28:52 |
 exc-20220215ex44008.jpg | 324452 | 2022-02-15 15:28:52 |
 exc-20220215ex44009.jpg | 337261 | 2022-02-15 15:28:52 |
 exc-20220215ex44010.jpg | 359687 | 2022-02-15 15:28:52 |
 exc-20220215ex44011.jpg | 302987 | 2022-02-15 15:28:52 |
 exc-20220215ex44012.jpg | 309334 | 2022-02-15 15:28:52 |
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 exc-20220215ex44014.jpg | 251188 | 2022-02-15 15:28:52 |
 exc-20220215ex44015.jpg | 123150 | 2022-02-15 15:28:52 |
 exc-20220215ex44016.jpg | 102506 | 2022-02-15 15:28:52 |
 exc-20220215ex44017.jpg | 47373 | 2022-02-15 15:28:52 |
| exc-20220215_def.xml | 23072 | 2022-02-15 15:28:52 |
| exc-20220215_htm.xml | 26726 | 2022-02-15 15:28:52 |
| exc-20220215_lab.xml | 45943 | 2022-02-15 15:28:52 |
| exc-20220215_pre.xml | 23547 | 2022-02-15 15:28:52 |
| FilingSummary.xml | 1821 | 2022-02-15 15:28:52 |
| Financial_Report.xlsx | 5882 | 2022-02-15 15:28:52 |
| MetaLinks.json | 29139 | 2022-02-15 15:28:52 |
| R1.htm | 42027 | 2022-02-15 15:28:52 |
| report.css | 2767 | 2022-02-15 15:28:52 |
| Show.js | 1085 | 2022-02-15 15:28:52 |