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|---|---|---|
 0001000753-22-000022-index-headers.html | 2022-04-26 16:27:31 | |
| 0001000753-22-000022-index.html | 2022-04-26 16:27:31 | |
| 0001000753-22-000022.txt | 2022-04-26 16:27:31 | |
 0001000753-22-000022-xbrl.zip | 417400 | 2022-04-26 16:27:31 |
| a03312022-nspex311.htm | 18821 | 2022-04-26 16:27:31 |
| a03312022-nspex312.htm | 18954 | 2022-04-26 16:27:31 |
| a03312022-nspex321.htm | 6714 | 2022-04-26 16:27:31 |
| a03312022-nspex322.htm | 6680 | 2022-04-26 16:27:31 |
| FilingSummary.xml | 16483 | 2022-04-26 16:27:31 |
| Financial_Report.xlsx | 45628 | 2022-04-26 16:27:31 |
| MetaLinks.json | 376913 | 2022-04-26 16:27:31 |
| nsp-20220331.htm | 928803 | 2022-04-26 16:27:31 |
| nsp-20220331.xsd | 26961 | 2022-04-26 16:27:31 |
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| nsp-20220331_htm.xml | 525062 | 2022-04-26 16:27:31 |
| nsp-20220331_lab.xml | 349083 | 2022-04-26 16:27:31 |
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| R1.htm | 55386 | 2022-04-26 16:27:31 |
| R10.htm | 12356 | 2022-04-26 16:27:31 |
| R11.htm | 14916 | 2022-04-26 16:27:31 |
| R12.htm | 18079 | 2022-04-26 16:27:31 |
| R13.htm | 8830 | 2022-04-26 16:27:31 |
| R14.htm | 31654 | 2022-04-26 16:27:31 |
| R15.htm | 6582 | 2022-04-26 16:27:31 |
| R16.htm | 19884 | 2022-04-26 16:27:31 |
| R17.htm | 22992 | 2022-04-26 16:27:31 |
| R18.htm | 34751 | 2022-04-26 16:27:31 |
| R19.htm | 7288 | 2022-04-26 16:27:31 |
| R2.htm | 124075 | 2022-04-26 16:27:31 |
| R20.htm | 86870 | 2022-04-26 16:27:31 |
| R21.htm | 25559 | 2022-04-26 16:27:31 |
| R22.htm | 32491 | 2022-04-26 16:27:31 |
| R23.htm | 31249 | 2022-04-26 16:27:31 |
| R24.htm | 15055 | 2022-04-26 16:27:31 |
| R25.htm | 32428 | 2022-04-26 16:27:31 |
| R3.htm | 87866 | 2022-04-26 16:27:31 |
| R4.htm | 91715 | 2022-04-26 16:27:31 |
| R5.htm | 39838 | 2022-04-26 16:27:31 |
| R6.htm | 10861 | 2022-04-26 16:27:31 |
| R7.htm | 29088 | 2022-04-26 16:27:31 |
| R8.htm | 23729 | 2022-04-26 16:27:31 |
| R9.htm | 37149 | 2022-04-26 16:27:31 |
| report.css | 2767 | 2022-04-26 16:27:31 |
| Show.js | 1085 | 2022-04-26 16:27:31 |