Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001564590-20-042721-index-headers.html | 2020-09-08 08:01:09 | |
| 0001564590-20-042721-index.html | 2020-09-08 08:01:09 | |
| 0001564590-20-042721.txt | 2020-09-08 08:01:09 | |
 0001564590-20-042721-xbrl.zip | 9814 | 2020-09-08 08:01:09 |
| FilingSummary.xml | 1706 | 2020-09-08 08:01:09 |
| Financial_Report.xlsx | 5473 | 2020-09-08 08:01:09 |
| hmhc-20200904.xsd | 5764 | 2020-09-08 08:01:09 |
| hmhc-20200904_lab.xml | 18736 | 2020-09-08 08:01:09 |
| hmhc-20200904_pre.xml | 11168 | 2020-09-08 08:01:09 |
| hmhc-8k_20200904.htm | 34357 | 2020-09-08 08:01:09 |
| hmhc-8k_20200904_htm.xml | 3409 | 2020-09-08 08:01:09 |
| MetaLinks.json | 19171 | 2020-09-08 08:01:09 |
| R1.htm | 38637 | 2020-09-08 08:01:09 |
| report.css | 2766 | 2020-09-08 08:01:09 |
| Show.js | 1084 | 2020-09-08 08:01:09 |