Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001000753-24-000012-index-headers.html | 2024-02-08 20:29:01 | |
| 0001000753-24-000012-index.html | 2024-02-08 20:29:01 | |
| 0001000753-24-000012.txt | 2024-02-08 20:29:01 | |
 0001000753-24-000012-xbrl.zip | 947065 | 2024-02-08 20:29:01 |
| a12312023nsp-ex1023ltip_ar.htm | 38496 | 2024-02-08 20:29:01 |
| a12312023nsp-ex105officerr.htm | 76745 | 2024-02-08 20:29:01 |
| a12312023nsp-ex106l1819rsu.htm | 76509 | 2024-02-08 20:29:01 |
| a12312023nsp-ex107employee.htm | 68627 | 2024-02-08 20:29:01 |
| a12312023nsp-ex109ltipawar.htm | 74594 | 2024-02-08 20:29:01 |
| a12312023nsp-ex211xsubsidi.htm | 9420 | 2024-02-08 20:29:01 |
| a12312023nsp-ex231xconsent.htm | 6418 | 2024-02-08 20:29:01 |
| a12312023nsp-ex241xpoas.htm | 34291 | 2024-02-08 20:29:01 |
| a12312023nsp-ex311.htm | 13532 | 2024-02-08 20:29:01 |
| a12312023nsp-ex312.htm | 13853 | 2024-02-08 20:29:01 |
| a12312023nsp-ex321.htm | 5150 | 2024-02-08 20:29:01 |
| a12312023nsp-ex322.htm | 4799 | 2024-02-08 20:29:01 |
| a12312023nsp-ex97clawbackp.htm | 44048 | 2024-02-08 20:29:01 |
| FilingSummary.xml | 28583 | 2024-02-08 20:29:01 |
| Financial_Report.xlsx | 93647 | 2024-02-08 20:29:01 |
| MetaLinks.json | 756019 | 2024-02-08 20:29:01 |
| nsp-20231231.htm | 1770904 | 2024-02-08 20:29:01 |
| nsp-20231231.xsd | 41699 | 2024-02-08 20:29:01 |
| nsp-20231231_cal.xml | 95637 | 2024-02-08 20:29:01 |
| nsp-20231231_def.xml | 152434 | 2024-02-08 20:29:01 |
 nsp-20231231_g1.jpg | 72833 | 2024-02-08 20:29:01 |
 nsp-20231231_g10.jpg | 28175 | 2024-02-08 20:29:01 |
 nsp-20231231_g11.jpg | 27313 | 2024-02-08 20:29:01 |
 nsp-20231231_g12.jpg | 20608 | 2024-02-08 20:29:01 |
 nsp-20231231_g13.jpg | 21304 | 2024-02-08 20:29:01 |
 nsp-20231231_g14.jpg | 20892 | 2024-02-08 20:29:01 |
 nsp-20231231_g15.jpg | 26873 | 2024-02-08 20:29:01 |
 nsp-20231231_g16.jpg | 27027 | 2024-02-08 20:29:01 |
 nsp-20231231_g2.jpg | 112847 | 2024-02-08 20:29:01 |
 nsp-20231231_g3.jpg | 68577 | 2024-02-08 20:29:01 |
 nsp-20231231_g4.jpg | 139792 | 2024-02-08 20:29:01 |
 nsp-20231231_g5.jpg | 98801 | 2024-02-08 20:29:01 |
 nsp-20231231_g6.jpg | 26403 | 2024-02-08 20:29:01 |
 nsp-20231231_g7.jpg | 28685 | 2024-02-08 20:29:01 |
 nsp-20231231_g8.jpg | 26717 | 2024-02-08 20:29:01 |
 nsp-20231231_g9.jpg | 28040 | 2024-02-08 20:29:01 |
| nsp-20231231_htm.xml | 1016907 | 2024-02-08 20:29:01 |
| nsp-20231231_lab.xml | 630863 | 2024-02-08 20:29:01 |
| nsp-20231231_pre.xml | 367289 | 2024-02-08 20:29:01 |
| R1.htm | 73249 | 2024-02-08 20:29:01 |
| R10.htm | 14070 | 2024-02-08 20:29:01 |
| R11.htm | 12018 | 2024-02-08 20:29:01 |
| R12.htm | 56526 | 2024-02-08 20:29:01 |
| R13.htm | 18535 | 2024-02-08 20:29:01 |
| R14.htm | 39727 | 2024-02-08 20:29:01 |
| R15.htm | 15899 | 2024-02-08 20:29:01 |
| R16.htm | 21821 | 2024-02-08 20:29:01 |
| R17.htm | 12355 | 2024-02-08 20:29:01 |
| R18.htm | 138183 | 2024-02-08 20:29:01 |
| R19.htm | 9904 | 2024-02-08 20:29:01 |
| R2.htm | 134762 | 2024-02-08 20:29:01 |
| R20.htm | 60260 | 2024-02-08 20:29:01 |
| R21.htm | 53147 | 2024-02-08 20:29:01 |
| R22.htm | 20552 | 2024-02-08 20:29:01 |
| R23.htm | 41591 | 2024-02-08 20:29:01 |
| R24.htm | 11157 | 2024-02-08 20:29:01 |
| R25.htm | 56792 | 2024-02-08 20:29:01 |
| R26.htm | 9589 | 2024-02-08 20:29:01 |
| R27.htm | 43952 | 2024-02-08 20:29:01 |
| R28.htm | 14215 | 2024-02-08 20:29:01 |
| R29.htm | 21779 | 2024-02-08 20:29:01 |
| R3.htm | 81406 | 2024-02-08 20:29:01 |
| R30.htm | 9890 | 2024-02-08 20:29:01 |
| R31.htm | 104173 | 2024-02-08 20:29:01 |
| R32.htm | 39760 | 2024-02-08 20:29:01 |
| R33.htm | 4306 | 2024-02-08 20:29:01 |
| R34.htm | 16467 | 2024-02-08 20:29:01 |
| R35.htm | 50017 | 2024-02-08 20:29:01 |
| R36.htm | 20431 | 2024-02-08 20:29:01 |
| R37.htm | 37630 | 2024-02-08 20:29:01 |
| R38.htm | 9672 | 2024-02-08 20:29:01 |
| R39.htm | 36197 | 2024-02-08 20:29:01 |
| R4.htm | 96948 | 2024-02-08 20:29:01 |
| R40.htm | 94945 | 2024-02-08 20:29:01 |
| R41.htm | 18693 | 2024-02-08 20:29:01 |
| R42.htm | 87267 | 2024-02-08 20:29:01 |
| R43.htm | 25535 | 2024-02-08 20:29:01 |
| R44.htm | 54351 | 2024-02-08 20:29:01 |
| R45.htm | 17597 | 2024-02-08 20:29:01 |
| R5.htm | 48941 | 2024-02-08 20:29:01 |
| R6.htm | 96549 | 2024-02-08 20:29:01 |
| R7.htm | 52340 | 2024-02-08 20:29:01 |
| R8.htm | 20847 | 2024-02-08 20:29:01 |
| R9.htm | 42431 | 2024-02-08 20:29:01 |
| report.css | 2767 | 2024-02-08 20:29:01 |
| Show.js | 1085 | 2024-02-08 20:29:01 |