| Cover Page | Oct. 31, 2019 |
| Cover page. | |
| Document Type | 8-K |
| Document Period End Date | Oct. 31, 2019 |
| Entity Registrant Name | TRI Pointe Group, Inc. |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 1-35796 |
| Entity Tax Identification Number | 61-1763235 |
| Entity Address, Address Line One | 19540 Jamboree Road |
| Entity Address, Address Line Two | Suite 300 |
| Entity Address, City or Town | Irvine |
| Entity Address, State or Province | CA |
| Entity Address, Postal Zip Code | 92612 |
| City Area Code | 949 |
| Local Phone Number | 438-1400 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, par value $0.01 per share |
| Trading Symbol | TPH |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0001561680 |
| Amendment Flag | false |
