XML 59 R24.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Deferred Costs, Capitalized, Prepaid, and Other Assets (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2023
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] |
Deposits and Prepaid Health Insurance [Table Text Block] | Deposits and prepaid health insurance consisted of the following:
| December 31,
(in thousands) | 2023 |  | 2022
Prepaid health insurance | $ | 9,000 |  |  | $ | 9,000 |
Deposits — health insurance | 7,900 |  |  | 7,900 |
Deposits — workers’ compensation | 198,170 |  |  | 196,370 |
Deposits and prepaid health insurance | $ | 215,070 |  |  | $ | 213,270 |

X
- Definition Deposits and Prepaid Health Insurance + References No definition available. + Details
Name: | nsp_DepositsAndPrepaidHealthInsuranceTableTextBlock
Namespace Prefix: | nsp_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration