Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001628280-18-002017-index-headers.html | 2018-02-22 08:16:56 | |
| 0001628280-18-002017-index.html | 2018-02-22 08:16:56 | |
| 0001628280-18-002017.txt | 2018-02-22 08:16:56 | |
 0001628280-18-002017-xbrl.zip | 495921 | 2018-02-22 08:16:56 |
 chart-ed4dc0e5d79ec3daaa5a02.jpg | 51106 | 2018-02-22 08:16:56 |
| FilingSummary.xml | 53430 | 2018-02-22 08:16:56 |
| Financial_Report.xlsx | 164897 | 2018-02-22 08:16:56 |
| R1.htm | 28229 | 2018-02-22 08:16:56 |
| R10.htm | 22011 | 2018-02-22 08:16:56 |
| R11.htm | 123458 | 2018-02-22 08:16:56 |
| R12.htm | 45133 | 2018-02-22 08:16:56 |
| R13.htm | 6856 | 2018-02-22 08:16:56 |
| R14.htm | 247648 | 2018-02-22 08:16:56 |
| R15.htm | 19252 | 2018-02-22 08:16:56 |
| R16.htm | 237644 | 2018-02-22 08:16:56 |
| R17.htm | 48950 | 2018-02-22 08:16:56 |
| R18.htm | 119950 | 2018-02-22 08:16:56 |
| R19.htm | 7567 | 2018-02-22 08:16:56 |
| R2.htm | 96578 | 2018-02-22 08:16:56 |
| R20.htm | 39779 | 2018-02-22 08:16:56 |
| R21.htm | 43074 | 2018-02-22 08:16:56 |
| R22.htm | 1334106 | 2018-02-22 08:16:56 |
| R23.htm | 13076 | 2018-02-22 08:16:56 |
| R24.htm | 60623 | 2018-02-22 08:16:56 |
| R25.htm | 41762 | 2018-02-22 08:16:56 |
| R26.htm | 135326 | 2018-02-22 08:16:56 |
| R27.htm | 57619 | 2018-02-22 08:16:56 |
| R28.htm | 41417 | 2018-02-22 08:16:56 |
| R29.htm | 20924 | 2018-02-22 08:16:56 |
| R3.htm | 14408 | 2018-02-22 08:16:56 |
| R30.htm | 120315 | 2018-02-22 08:16:56 |
| R31.htm | 41419 | 2018-02-22 08:16:56 |
| R32.htm | 199770 | 2018-02-22 08:16:56 |
| R33.htm | 16337 | 2018-02-22 08:16:56 |
| R34.htm | 244428 | 2018-02-22 08:16:56 |
| R35.htm | 44634 | 2018-02-22 08:16:56 |
| R36.htm | 119149 | 2018-02-22 08:16:56 |
| R37.htm | 35452 | 2018-02-22 08:16:56 |
| R38.htm | 18360 | 2018-02-22 08:16:56 |
| R39.htm | 1333132 | 2018-02-22 08:16:56 |
| R4.htm | 66444 | 2018-02-22 08:16:56 |
| R40.htm | 60390 | 2018-02-22 08:16:56 |
| R41.htm | 23270 | 2018-02-22 08:16:56 |
| R42.htm | 19143 | 2018-02-22 08:16:56 |
| R43.htm | 19303 | 2018-02-22 08:16:56 |
| R44.htm | 4318 | 2018-02-22 08:16:56 |
| R45.htm | 21606 | 2018-02-22 08:16:56 |
| R46.htm | 43471 | 2018-02-22 08:16:56 |
| R47.htm | 34203 | 2018-02-22 08:16:56 |
| R48.htm | 41519 | 2018-02-22 08:16:56 |
| R49.htm | 60626 | 2018-02-22 08:16:56 |
| R5.htm | 139487 | 2018-02-22 08:16:56 |
| R50.htm | 15901 | 2018-02-22 08:16:56 |
| R51.htm | 23978 | 2018-02-22 08:16:56 |
| R52.htm | 31851 | 2018-02-22 08:16:56 |
| R53.htm | 52534 | 2018-02-22 08:16:56 |
| R54.htm | 24014 | 2018-02-22 08:16:56 |
| R55.htm | 32547 | 2018-02-22 08:16:56 |
| R56.htm | 9689 | 2018-02-22 08:16:56 |
| R57.htm | 49251 | 2018-02-22 08:16:56 |
| R58.htm | 61581 | 2018-02-22 08:16:56 |
| R59.htm | 48159 | 2018-02-22 08:16:56 |
| R6.htm | 137278 | 2018-02-22 08:16:56 |
| R60.htm | 79901 | 2018-02-22 08:16:56 |
| R61.htm | 28773 | 2018-02-22 08:16:56 |
| R62.htm | 113940 | 2018-02-22 08:16:56 |
| R63.htm | 15748 | 2018-02-22 08:16:56 |
| R64.htm | 21349 | 2018-02-22 08:16:56 |
| R65.htm | 49663 | 2018-02-22 08:16:56 |
| R66.htm | 61885 | 2018-02-22 08:16:56 |
| R67.htm | 52667 | 2018-02-22 08:16:56 |
| R68.htm | 26205 | 2018-02-22 08:16:56 |
| R69.htm | 22261 | 2018-02-22 08:16:56 |
| R7.htm | 107429 | 2018-02-22 08:16:56 |
| R70.htm | 49013 | 2018-02-22 08:16:56 |
| R71.htm | 65324 | 2018-02-22 08:16:56 |
| R72.htm | 26833 | 2018-02-22 08:16:56 |
| R73.htm | 8242 | 2018-02-22 08:16:56 |
| R74.htm | 20608 | 2018-02-22 08:16:56 |
| R75.htm | 37044 | 2018-02-22 08:16:56 |
| R76.htm | 35046 | 2018-02-22 08:16:56 |
| R77.htm | 14891 | 2018-02-22 08:16:56 |
| R78.htm | 6909 | 2018-02-22 08:16:56 |
| R79.htm | 193895 | 2018-02-22 08:16:56 |
| R8.htm | 52332 | 2018-02-22 08:16:56 |
| R80.htm | 163136 | 2018-02-22 08:16:56 |
| R81.htm | 227739 | 2018-02-22 08:16:56 |
| R82.htm | 64752 | 2018-02-22 08:16:56 |
| R83.htm | 20356 | 2018-02-22 08:16:56 |
| R84.htm | 14472 | 2018-02-22 08:16:56 |
| R9.htm | 6153 | 2018-02-22 08:16:56 |
| report.css | 2768 | 2018-02-22 08:16:56 |
| sem-12311710k.htm | 5359338 | 2018-02-22 08:16:56 |
| sem-12311710kex12.htm | 47560 | 2018-02-22 08:16:56 |
| sem-12311710kex211.htm | 356184 | 2018-02-22 08:16:56 |
| sem-12311710kex23.htm | 2761 | 2018-02-22 08:16:56 |
| sem-12311710kex311.htm | 11841 | 2018-02-22 08:16:56 |
| sem-12311710kex312.htm | 11972 | 2018-02-22 08:16:56 |
| sem-12311710kex321.htm | 8523 | 2018-02-22 08:16:56 |
| sem-20171231.xml | 6773809 | 2018-02-22 08:16:56 |
| sem-20171231.xsd | 82087 | 2018-02-22 08:16:56 |
| sem-20171231_cal.xml | 141528 | 2018-02-22 08:16:56 |
| sem-20171231_def.xml | 669414 | 2018-02-22 08:16:56 |
| sem-20171231_lab.xml | 1103222 | 2018-02-22 08:16:56 |
| sem-20171231_pre.xml | 829627 | 2018-02-22 08:16:56 |
| Show.js | 1411 | 2018-02-22 08:16:56 |