Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-21-207587-index-headers.html | 2021-07-02 16:06:03 | |
| 0001193125-21-207587-index.html | 2021-07-02 16:06:03 | |
| 0001193125-21-207587.txt | 2021-07-02 16:06:03 | |
 0001193125-21-207587-xbrl.zip | 18600 | 2021-07-02 16:06:03 |
| d197276d8k.htm | 26913 | 2021-07-02 16:06:03 |
| d197276d8k_htm.xml | 3421 | 2021-07-02 16:06:03 |
| d197276dex101.htm | 43224 | 2021-07-02 16:06:03 |
| FilingSummary.xml | 1723 | 2021-07-02 16:06:03 |
| Financial_Report.xlsx | 5721 | 2021-07-02 16:06:03 |
 g197276r1.jpg | 1881 | 2021-07-02 16:06:03 |
 g197276r2.jpg | 2321 | 2021-07-02 16:06:03 |
| hsii-20210630.xsd | 2879 | 2021-07-02 16:06:03 |
| hsii-20210630_lab.xml | 18138 | 2021-07-02 16:06:03 |
| hsii-20210630_pre.xml | 11399 | 2021-07-02 16:06:03 |
| MetaLinks.json | 18707 | 2021-07-02 16:06:03 |
| R1.htm | 40181 | 2021-07-02 16:06:03 |
| report.css | 2767 | 2021-07-02 16:06:03 |
| Show.js | 1085 | 2021-07-02 16:06:03 |