Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-15-113703-index-headers.html | 2015-03-31 13:48:36 | |
| 0001193125-15-113703-index.html | 2015-03-31 13:48:36 | |
| 0001193125-15-113703.txt | 2015-03-31 13:48:36 | |
 0001193125-15-113703-xbrl.zip | 142797 | 2015-03-31 13:48:36 |
| crv-20141231.xml | 763685 | 2015-03-31 13:48:36 |
| crv-20141231.xsd | 56875 | 2015-03-31 13:48:36 |
| crv-20141231_cal.xml | 80477 | 2015-03-31 13:48:36 |
| crv-20141231_def.xml | 355270 | 2015-03-31 13:48:36 |
| crv-20141231_lab.xml | 488751 | 2015-03-31 13:48:36 |
| crv-20141231_pre.xml | 419469 | 2015-03-31 13:48:36 |
| d867960d10k.htm | 653840 | 2015-03-31 13:48:36 |
| d867960dex21.htm | 4013 | 2015-03-31 13:48:36 |
| d867960dex231.htm | 1996 | 2015-03-31 13:48:36 |
| d867960dex311.htm | 8624 | 2015-03-31 13:48:36 |
| d867960dex312.htm | 8864 | 2015-03-31 13:48:36 |
| d867960dex321.htm | 3611 | 2015-03-31 13:48:36 |
| d867960dex322.htm | 3617 | 2015-03-31 13:48:36 |
| FilingSummary.xml | 37350 | 2015-03-31 13:48:36 |
| Financial_Report.xls | 617431 | 2015-03-31 13:48:36 |
| Financial_Report.xlsx | 160285 | 2015-03-31 13:48:36 |
| R1.htm | 40407 | 2015-03-31 13:48:36 |
| R10.htm | 8657 | 2015-03-31 13:48:36 |
| R11.htm | 10545 | 2015-03-31 13:48:36 |
| R12.htm | 55676 | 2015-03-31 13:48:36 |
| R13.htm | 4569 | 2015-03-31 13:48:36 |
| R14.htm | 18286 | 2015-03-31 13:48:36 |
| R15.htm | 57872 | 2015-03-31 13:48:36 |
| R16.htm | 13802 | 2015-03-31 13:48:36 |
| R17.htm | 9646 | 2015-03-31 13:48:36 |
| R18.htm | 10203 | 2015-03-31 13:48:36 |
| R19.htm | 6744 | 2015-03-31 13:48:36 |
| R2.htm | 94408 | 2015-03-31 13:48:36 |
| R20.htm | 16652 | 2015-03-31 13:48:36 |
| R21.htm | 20029 | 2015-03-31 13:48:36 |
| R22.htm | 89487 | 2015-03-31 13:48:36 |
| R23.htm | 13362 | 2015-03-31 13:48:36 |
| R24.htm | 10960 | 2015-03-31 13:48:36 |
| R25.htm | 5452 | 2015-03-31 13:48:36 |
| R26.htm | 8053 | 2015-03-31 13:48:36 |
| R27.htm | 52455 | 2015-03-31 13:48:36 |
| R28.htm | 14494 | 2015-03-31 13:48:36 |
| R29.htm | 65925 | 2015-03-31 13:48:36 |
| R3.htm | 28127 | 2015-03-31 13:48:36 |
| R30.htm | 12121 | 2015-03-31 13:48:36 |
| R31.htm | 9575 | 2015-03-31 13:48:36 |
| R32.htm | 8183 | 2015-03-31 13:48:36 |
| R33.htm | 15228 | 2015-03-31 13:48:36 |
| R34.htm | 45338 | 2015-03-31 13:48:36 |
| R35.htm | 16111 | 2015-03-31 13:48:36 |
| R36.htm | 8991 | 2015-03-31 13:48:36 |
| R37.htm | 28069 | 2015-03-31 13:48:36 |
| R38.htm | 7141 | 2015-03-31 13:48:36 |
| R39.htm | 7228 | 2015-03-31 13:48:36 |
| R4.htm | 59449 | 2015-03-31 13:48:36 |
| R40.htm | 59916 | 2015-03-31 13:48:36 |
| R41.htm | 11162 | 2015-03-31 13:48:36 |
| R42.htm | 26433 | 2015-03-31 13:48:36 |
| R43.htm | 87428 | 2015-03-31 13:48:36 |
| R44.htm | 14978 | 2015-03-31 13:48:36 |
| R45.htm | 71463 | 2015-03-31 13:48:36 |
| R46.htm | 53464 | 2015-03-31 13:48:36 |
| R47.htm | 42588 | 2015-03-31 13:48:36 |
| R48.htm | 6552 | 2015-03-31 13:48:36 |
| R49.htm | 40912 | 2015-03-31 13:48:36 |
| R5.htm | 18063 | 2015-03-31 13:48:36 |
| R50.htm | 7135 | 2015-03-31 13:48:36 |
| R51.htm | 15050 | 2015-03-31 13:48:36 |
| R52.htm | 49043 | 2015-03-31 13:48:36 |
| R53.htm | 56048 | 2015-03-31 13:48:36 |
| R54.htm | 14559 | 2015-03-31 13:48:36 |
| R55.htm | 50517 | 2015-03-31 13:48:36 |
| R56.htm | 6593 | 2015-03-31 13:48:36 |
| R57.htm | 28250 | 2015-03-31 13:48:36 |
| R58.htm | 16432 | 2015-03-31 13:48:36 |
| R59.htm | 26325 | 2015-03-31 13:48:36 |
| R6.htm | 93218 | 2015-03-31 13:48:36 |
| R60.htm | 27182 | 2015-03-31 13:48:36 |
| R61.htm | 13594 | 2015-03-31 13:48:36 |
| R62.htm | 13706 | 2015-03-31 13:48:36 |
| R63.htm | 27514 | 2015-03-31 13:48:36 |
| R64.htm | 41449 | 2015-03-31 13:48:36 |
| R7.htm | 121137 | 2015-03-31 13:48:36 |
| R8.htm | 30522 | 2015-03-31 13:48:36 |
| R9.htm | 11925 | 2015-03-31 13:48:36 |
| report.css | 2740 | 2015-03-31 13:48:36 |
| Show.js | 1410 | 2015-03-31 13:48:36 |