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Filing Detail
Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0001564590-22-006489
Filing Date
2022-02-24
Accepted
2022-02-24 06:48:06
Documents
154
Period of Report
2021-12-31

Document Format Files

Seq Description Document Type Size
1 10-K hmhc-10k_20211231.htm   iXBRL 10-K 6131868
2 EX-10.34 hmhc-ex1034_107.htm EX-10.34 24972
3 EX-10.35 hmhc-ex1035_108.htm EX-10.35 20534
4 EX-10.37 hmhc-ex1037_106.htm EX-10.37 114123
5 EX-21.1 hmhc-ex211_8.htm EX-21.1 2539
6 EX-23.1 hmhc-ex231_10.htm EX-23.1 2080
7 EX-31.1 hmhc-ex311_11.htm EX-31.1 13433
8 EX-31.2 hmhc-ex312_6.htm EX-31.2 13455
9 EX-32.1 hmhc-ex321_7.htm EX-32.1 7410
10 EX-32.2 hmhc-ex322_9.htm EX-32.2 7565
11 GRAPHIC ge2xikqtflgg000001.jpg GRAPHIC 4541
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20 GRAPHIC ge2xikqtflgg000002.jpg GRAPHIC 3297
21 GRAPHIC g1qk0lxr4cdn000001.jpg GRAPHIC 2719
  Complete submission text file 0001564590-22-006489.txt   27469071

Data Files

Seq Description Document Type Size
22 XBRL TAXONOMY EXTENSION SCHEMA hmhc-20211231.xsd EX-101.SCH 115769
23 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE hmhc-20211231_cal.xml EX-101.CAL 152077
24 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE hmhc-20211231_def.xml EX-101.DEF 518448
25 XBRL TAXONOMY EXTENSION LABEL LINKBASE hmhc-20211231_lab.xml EX-101.LAB 931525
26 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE hmhc-20211231_pre.xml EX-101.PRE 848169
148 EXTRACTED XBRL INSTANCE DOCUMENT hmhc-10k_20211231_htm.xml XML 6293989
Mailing Address 125 HIGH STREET BOSTON MA 02110
Business Address 125 HIGH STREET BOSTON MA 02110 617-351-5000
Houghton Mifflin Harcourt Co (Filer) CIK: 0001580156 (see all company filings)

IRS No.: 271566372 | State of Incorp.: DE | Fiscal Year End: 1231
Type: 10-K | Act: 34 | File No.: 001-36166 | Film No.: 22666425
SIC: 2731 Books: Publishing or Publishing & Printing
Office of Manufacturing