Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001628280-18-002149-index-headers.html | 2018-02-23 17:17:58 | |
| 0001628280-18-002149-index.html | 2018-02-23 17:17:58 | |
| 0001628280-18-002149.txt | 2018-02-23 17:17:58 | |
 0001628280-18-002149-xbrl.zip | 355965 | 2018-02-23 17:17:58 |
| FilingSummary.xml | 55224 | 2018-02-23 17:17:58 |
| Financial_Report.xlsx | 137790 | 2018-02-23 17:17:58 |
| R1.htm | 29985 | 2018-02-23 17:17:58 |
| R10.htm | 17971 | 2018-02-23 17:17:58 |
| R11.htm | 54276 | 2018-02-23 17:17:58 |
| R12.htm | 142657 | 2018-02-23 17:17:58 |
| R13.htm | 47905 | 2018-02-23 17:17:58 |
| R14.htm | 104357 | 2018-02-23 17:17:58 |
| R15.htm | 108046 | 2018-02-23 17:17:58 |
| R16.htm | 76799 | 2018-02-23 17:17:58 |
| R17.htm | 18473 | 2018-02-23 17:17:58 |
| R18.htm | 26474 | 2018-02-23 17:17:58 |
| R19.htm | 164573 | 2018-02-23 17:17:58 |
| R2.htm | 81085 | 2018-02-23 17:17:58 |
| R20.htm | 70973 | 2018-02-23 17:17:58 |
| R21.htm | 152872 | 2018-02-23 17:17:58 |
| R22.htm | 21337 | 2018-02-23 17:17:58 |
| R23.htm | 103316 | 2018-02-23 17:17:58 |
| R24.htm | 6163 | 2018-02-23 17:17:58 |
| R25.htm | 6519 | 2018-02-23 17:17:58 |
| R26.htm | 43000 | 2018-02-23 17:17:58 |
| R27.htm | 123556 | 2018-02-23 17:17:58 |
| R28.htm | 49604 | 2018-02-23 17:17:58 |
| R29.htm | 62118 | 2018-02-23 17:17:58 |
| R3.htm | 23654 | 2018-02-23 17:17:58 |
| R30.htm | 141601 | 2018-02-23 17:17:58 |
| R31.htm | 49060 | 2018-02-23 17:17:58 |
| R32.htm | 100219 | 2018-02-23 17:17:58 |
| R33.htm | 108183 | 2018-02-23 17:17:58 |
| R34.htm | 77493 | 2018-02-23 17:17:58 |
| R35.htm | 10893 | 2018-02-23 17:17:58 |
| R36.htm | 23419 | 2018-02-23 17:17:58 |
| R37.htm | 156072 | 2018-02-23 17:17:58 |
| R38.htm | 67146 | 2018-02-23 17:17:58 |
| R39.htm | 148237 | 2018-02-23 17:17:58 |
| R4.htm | 70791 | 2018-02-23 17:17:58 |
| R40.htm | 11230 | 2018-02-23 17:17:58 |
| R41.htm | 104093 | 2018-02-23 17:17:58 |
| R42.htm | 7312 | 2018-02-23 17:17:58 |
| R43.htm | 28585 | 2018-02-23 17:17:58 |
| R44.htm | 7488 | 2018-02-23 17:17:58 |
| R45.htm | 12682 | 2018-02-23 17:17:58 |
| R46.htm | 23954 | 2018-02-23 17:17:58 |
| R47.htm | 11429 | 2018-02-23 17:17:58 |
| R48.htm | 21945 | 2018-02-23 17:17:58 |
| R49.htm | 12728 | 2018-02-23 17:17:58 |
| R5.htm | 14751 | 2018-02-23 17:17:58 |
| R50.htm | 8929 | 2018-02-23 17:17:58 |
| R51.htm | 31540 | 2018-02-23 17:17:58 |
| R52.htm | 8469 | 2018-02-23 17:17:58 |
| R53.htm | 29274 | 2018-02-23 17:17:58 |
| R54.htm | 11106 | 2018-02-23 17:17:58 |
| R55.htm | 30980 | 2018-02-23 17:17:58 |
| R56.htm | 8780 | 2018-02-23 17:17:58 |
| R57.htm | 38587 | 2018-02-23 17:17:58 |
| R58.htm | 24154 | 2018-02-23 17:17:58 |
| R59.htm | 17648 | 2018-02-23 17:17:58 |
| R6.htm | 81439 | 2018-02-23 17:17:58 |
| R60.htm | 89836 | 2018-02-23 17:17:58 |
| R61.htm | 20938 | 2018-02-23 17:17:58 |
| R62.htm | 24485 | 2018-02-23 17:17:58 |
| R63.htm | 15576 | 2018-02-23 17:17:58 |
| R64.htm | 34736 | 2018-02-23 17:17:58 |
| R65.htm | 21315 | 2018-02-23 17:17:58 |
| R66.htm | 16949 | 2018-02-23 17:17:58 |
| R67.htm | 53849 | 2018-02-23 17:17:58 |
| R68.htm | 19787 | 2018-02-23 17:17:58 |
| R69.htm | 17075 | 2018-02-23 17:17:58 |
| R7.htm | 96042 | 2018-02-23 17:17:58 |
| R70.htm | 4973 | 2018-02-23 17:17:58 |
| R71.htm | 67601 | 2018-02-23 17:17:58 |
| R72.htm | 47470 | 2018-02-23 17:17:58 |
| R73.htm | 66469 | 2018-02-23 17:17:58 |
| R74.htm | 40783 | 2018-02-23 17:17:58 |
| R75.htm | 16986 | 2018-02-23 17:17:58 |
| R76.htm | 12634 | 2018-02-23 17:17:58 |
| R77.htm | 33475 | 2018-02-23 17:17:58 |
| R78.htm | 27310 | 2018-02-23 17:17:58 |
| R79.htm | 9248 | 2018-02-23 17:17:58 |
| R8.htm | 9066 | 2018-02-23 17:17:58 |
| R80.htm | 27366 | 2018-02-23 17:17:58 |
| R81.htm | 29007 | 2018-02-23 17:17:58 |
| R82.htm | 40772 | 2018-02-23 17:17:58 |
| R83.htm | 36636 | 2018-02-23 17:17:58 |
| R84.htm | 15121 | 2018-02-23 17:17:58 |
| R85.htm | 8129 | 2018-02-23 17:17:58 |
| R86.htm | 19447 | 2018-02-23 17:17:58 |
| R87.htm | 27707 | 2018-02-23 17:17:58 |
| R88.htm | 24787 | 2018-02-23 17:17:58 |
| R89.htm | 12306 | 2018-02-23 17:17:58 |
| R9.htm | 62673 | 2018-02-23 17:17:58 |
| R90.htm | 4290 | 2018-02-23 17:17:58 |
| R91.htm | 21551 | 2018-02-23 17:17:58 |
| R92.htm | 14809 | 2018-02-23 17:17:58 |
| report.css | 2768 | 2018-02-23 17:17:58 |
| Show.js | 1411 | 2018-02-23 17:17:58 |
| xper-20171231.xml | 3140201 | 2018-02-23 17:17:58 |
| xper-20171231.xsd | 82359 | 2018-02-23 17:17:58 |
| xper-20171231x10xk.htm | 2959657 | 2018-02-23 17:17:58 |
| xper-20171231xexhibit1030.htm | 88287 | 2018-02-23 17:17:58 |
| xper-20171231xexhibit1031.htm | 99528 | 2018-02-23 17:17:58 |
| xper-20171231xexhibit211.htm | 8914 | 2018-02-23 17:17:58 |
| xper-20171231xexhibit231.htm | 2798 | 2018-02-23 17:17:58 |
| xper-20171231xexhibit311.htm | 9735 | 2018-02-23 17:17:58 |
| xper-20171231xexhibit312.htm | 11030 | 2018-02-23 17:17:58 |
| xper-20171231xexhibit321.htm | 8915 | 2018-02-23 17:17:58 |
| xper-20171231_cal.xml | 157093 | 2018-02-23 17:17:58 |
| xper-20171231_def.xml | 391637 | 2018-02-23 17:17:58 |
| xper-20171231_lab.xml | 1115684 | 2018-02-23 17:17:58 |
| xper-20171231_pre.xml | 660267 | 2018-02-23 17:17:58 |
 xper2017graphv2.jpg | 58209 | 2018-02-23 17:17:58 |