| Cover | Jan. 01, 2020 |
| Document Information [Line Items] | |
| Document Type | 8-K/A |
| Amendment Flag | true |
| Amendment Description | Two Harbors Investment Corp. is filing this Amendment No. 1 to its Current Report on Form 8-K, filed with the U.S. Securities and Exchange Commission on January 2, 2020 (the “Original Form 8-K”), solely to correct the titles of Messrs. Greenberg and Koeppen referenced in the second sentence of the first paragraph. As indicated elsewhere in the Original Form 8-K, Messrs. Greenberg and Koeppen were appointed as “Co-Chief Investment Officers” effective January 1, 2020. No other changes have been made to the Original Form 8-K. |
| Document Period End Date | Jan. 1, 2020 |
| Entity File Number | 001-34506 |
| Entity Registrant Name | Two Harbors Investment Corp. |
| Entity Central Index Key | 0001465740 |
| Entity Tax Identification Number | 27-0312904 |
| Entity Incorporation, State or Country Code | MD |
| Entity Address, Address Line One | 575 Lexington Avenue |
| Entity Address, Address Line Two | Suite 2930 |
| Entity Address, City or Town | New York |
| Entity Address, State or Province | NY |
| Entity Address, Postal Zip Code | 10022 |
| City Area Code | 612 |
| Local Phone Number | 629-2500 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Common Stock [Member] | |
| Document Information [Line Items] | |
| Title of 12(b) Security | Common Stock, par value $0.01 per share |
| Trading Symbol | TWO |
| Security Exchange Name | NYSE |
| Series A Preferred Stock [Member] | |
| Document Information [Line Items] | |
| Title of 12(b) Security | 8.125% Series A Cumulative Redeemable Preferred Stock |
| Trading Symbol | TWO PRA |
| Security Exchange Name | NYSE |
| Series B Preferred Stock [Member] | |
| Document Information [Line Items] | |
| Title of 12(b) Security | 7.625% Series B Cumulative Redeemable Preferred Stock |
| Trading Symbol | TWO PRB |
| Security Exchange Name | NYSE |
| Series C Preferred Stock [Member] | |
| Document Information [Line Items] | |
| Title of 12(b) Security | 7.25% Series C Cumulative Redeemable Preferred Stock |
| Trading Symbol | TWO PRC |
| Security Exchange Name | NYSE |
| Series D Preferred Stock [Member] | |
| Document Information [Line Items] | |
| Title of 12(b) Security | 7.75% Series D Cumulative Redeemable Preferred Stock |
| Trading Symbol | TWO PRD |
| Security Exchange Name | NYSE |
| Series E Preferred Stock [Member] | |
| Document Information [Line Items] | |
| Title of 12(b) Security | 7.50% Series E Cumulative Redeemable Preferred Stock |
| Trading Symbol | TWO PRE |
| Security Exchange Name | NYSE |
