Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001564590-20-025870-index-headers.html | 2020-05-15 17:31:05 | |
| 0001564590-20-025870-index.html | 2020-05-15 17:31:05 | |
| 0001564590-20-025870.txt | 2020-05-15 17:31:05 | |
 0001564590-20-025870-xbrl.zip | 207226 | 2020-05-15 17:31:05 |
| crr-10k_20191231.htm | 2854641 | 2020-05-15 17:31:05 |
| crr-20191231.xml | 2070924 | 2020-05-15 17:31:05 |
| crr-20191231.xsd | 81683 | 2020-05-15 17:31:05 |
| crr-20191231_cal.xml | 81764 | 2020-05-15 17:31:05 |
| crr-20191231_def.xml | 357782 | 2020-05-15 17:31:05 |
| crr-20191231_lab.xml | 659637 | 2020-05-15 17:31:05 |
| crr-20191231_pre.xml | 540487 | 2020-05-15 17:31:05 |
| crr-ex1045_553.htm | 26931 | 2020-05-15 17:31:05 |
| crr-ex1046_554.htm | 26825 | 2020-05-15 17:31:05 |
| crr-ex21_8.htm | 11726 | 2020-05-15 17:31:05 |
| crr-ex311_7.htm | 10251 | 2020-05-15 17:31:05 |
| crr-ex312_10.htm | 10161 | 2020-05-15 17:31:05 |
| crr-ex32_6.htm | 10335 | 2020-05-15 17:31:05 |
| crr-ex43_306.htm | 15235 | 2020-05-15 17:31:05 |
| crr-ex95_11.htm | 226275 | 2020-05-15 17:31:05 |
| FilingSummary.xml | 45977 | 2020-05-15 17:31:05 |
| Financial_Report.xlsx | 104098 | 2020-05-15 17:31:05 |
| R1.htm | 55497 | 2020-05-15 17:31:05 |
| R10.htm | 16050 | 2020-05-15 17:31:05 |
| R11.htm | 54822 | 2020-05-15 17:31:05 |
| R12.htm | 49512 | 2020-05-15 17:31:05 |
| R13.htm | 181970 | 2020-05-15 17:31:05 |
| R14.htm | 9600 | 2020-05-15 17:31:05 |
| R15.htm | 41832 | 2020-05-15 17:31:05 |
| R16.htm | 45871 | 2020-05-15 17:31:05 |
| R17.htm | 48166 | 2020-05-15 17:31:05 |
| R18.htm | 105820 | 2020-05-15 17:31:05 |
| R19.htm | 133985 | 2020-05-15 17:31:05 |
| R2.htm | 105077 | 2020-05-15 17:31:05 |
| R20.htm | 24927 | 2020-05-15 17:31:05 |
| R21.htm | 12295 | 2020-05-15 17:31:05 |
| R22.htm | 6218 | 2020-05-15 17:31:05 |
| R23.htm | 11863 | 2020-05-15 17:31:05 |
| R24.htm | 6463 | 2020-05-15 17:31:05 |
| R25.htm | 6886 | 2020-05-15 17:31:05 |
| R26.htm | 83780 | 2020-05-15 17:31:05 |
| R27.htm | 7474 | 2020-05-15 17:31:05 |
| R28.htm | 33297 | 2020-05-15 17:31:05 |
| R29.htm | 81202 | 2020-05-15 17:31:05 |
| R3.htm | 16738 | 2020-05-15 17:31:05 |
| R30.htm | 41506 | 2020-05-15 17:31:05 |
| R31.htm | 47391 | 2020-05-15 17:31:05 |
| R32.htm | 179147 | 2020-05-15 17:31:05 |
| R33.htm | 41205 | 2020-05-15 17:31:05 |
| R34.htm | 38283 | 2020-05-15 17:31:05 |
| R35.htm | 46175 | 2020-05-15 17:31:05 |
| R36.htm | 104209 | 2020-05-15 17:31:05 |
| R37.htm | 133048 | 2020-05-15 17:31:05 |
| R38.htm | 22389 | 2020-05-15 17:31:05 |
| R39.htm | 78024 | 2020-05-15 17:31:05 |
| R4.htm | 50456 | 2020-05-15 17:31:05 |
| R40.htm | 13758 | 2020-05-15 17:31:05 |
| R41.htm | 25429 | 2020-05-15 17:31:05 |
| R42.htm | 18971 | 2020-05-15 17:31:05 |
| R43.htm | 44761 | 2020-05-15 17:31:05 |
| R44.htm | 15747 | 2020-05-15 17:31:05 |
| R45.htm | 126467 | 2020-05-15 17:31:05 |
| R46.htm | 66944 | 2020-05-15 17:31:05 |
| R47.htm | 24549 | 2020-05-15 17:31:05 |
| R48.htm | 36090 | 2020-05-15 17:31:05 |
| R49.htm | 13322 | 2020-05-15 17:31:05 |
| R5.htm | 24098 | 2020-05-15 17:31:05 |
| R50.htm | 22754 | 2020-05-15 17:31:05 |
| R51.htm | 6858 | 2020-05-15 17:31:05 |
| R52.htm | 41527 | 2020-05-15 17:31:05 |
| R53.htm | 17706 | 2020-05-15 17:31:05 |
| R54.htm | 47322 | 2020-05-15 17:31:05 |
| R55.htm | 22292 | 2020-05-15 17:31:05 |
| R56.htm | 24945 | 2020-05-15 17:31:05 |
| R57.htm | 12206 | 2020-05-15 17:31:05 |
| R58.htm | 70327 | 2020-05-15 17:31:05 |
| R59.htm | 24331 | 2020-05-15 17:31:05 |
| R6.htm | 97969 | 2020-05-15 17:31:05 |
| R60.htm | 10167 | 2020-05-15 17:31:05 |
| R61.htm | 31697 | 2020-05-15 17:31:05 |
| R62.htm | 23607 | 2020-05-15 17:31:05 |
| R63.htm | 11632 | 2020-05-15 17:31:05 |
| R64.htm | 33187 | 2020-05-15 17:31:05 |
| R65.htm | 26672 | 2020-05-15 17:31:05 |
| R66.htm | 14930 | 2020-05-15 17:31:05 |
| R67.htm | 19008 | 2020-05-15 17:31:05 |
| R68.htm | 6460 | 2020-05-15 17:31:05 |
| R69.htm | 8006 | 2020-05-15 17:31:05 |
| R7.htm | 45065 | 2020-05-15 17:31:05 |
| R70.htm | 60386 | 2020-05-15 17:31:05 |
| R71.htm | 10288 | 2020-05-15 17:31:05 |
| R72.htm | 66951 | 2020-05-15 17:31:05 |
| R73.htm | 9043 | 2020-05-15 17:31:05 |
| R8.htm | 35728 | 2020-05-15 17:31:05 |
| R9.htm | 86331 | 2020-05-15 17:31:05 |
| report.css | 2767 | 2020-05-15 17:31:05 |
| Show.js | 1085 | 2020-05-15 17:31:05 |