Two Harbors Investment Corp. Quarterly report pursuant to Section 13 or 15(d)

Derivative Instruments and Hedging Activities Schedule of Interest Rate Swap Payers (Details)

Derivative Instruments and Hedging Activities Schedule of Interest Rate Swap Payers (Details) - Long [Member] - USD ($)		3 Months Ended
	Dec. 31, 2023	Mar. 31, 2024
Interest Rate Swap [Member]
Derivative [Line Items]
Notional	$ 12,127,483,000	$ 7,873,745,000
Weighted Average Fixed Interest Rate	4.245%	4.18%
Weighted Average Variable Interest Rate	5.38%	5.34%
Weighted Average Remaining Maturity	3 years 10 months 13 days	3 years 4 months 17 days
Interest Rate Swap [Member] \| Derivative Maturity Within One Year From Balance Sheet Date
Derivative [Line Items]
Notional	$ 0	$ 2,647,671,000
Weighted Average Fixed Interest Rate	0.00%	4.73%
Weighted Average Variable Interest Rate	0.00%	5.34%
Weighted Average Remaining Maturity	0 years	11 months 15 days
Interest Rate Swap [Member] \| Derivative Maturity Over One And Within Three Years From Balance Sheet Date
Derivative [Line Items]
Notional	$ 6,796,772,000	$ 1,968,891,000
Weighted Average Fixed Interest Rate	4.551%	4.087%
Weighted Average Variable Interest Rate	5.38%	5.34%
Weighted Average Remaining Maturity	1 year 5 months 8 days	1 year 9 months 3 days
Interest Rate Swap [Member] \| Derivative Maturity Over Three And Within Five Years From Balance Sheet Date
Derivative [Line Items]
Notional	$ 2,040,444,000	$ 1,784,642,000
Weighted Average Fixed Interest Rate	3.80%	3.546%
Weighted Average Variable Interest Rate	5.38%	5.34%
Weighted Average Remaining Maturity	4 years 25 days	3 years 9 months 10 days
Interest Rate Swap [Member] \| Derivative Maturity Over Five And Within Seven Years From Balance Sheet Date
Derivative [Line Items]
Notional	$ 697,800,000	$ 0
Weighted Average Fixed Interest Rate	4.282%	0.00%
Weighted Average Variable Interest Rate	5.38%	0.00%
Weighted Average Remaining Maturity	6 years 8 months 1 day	0 years
Interest Rate Swap [Member] \| Derivative Maturity Over Seven And Within Ten Years From Balance Sheet Date
Derivative [Line Items]
Notional	$ 2,125,830,000	$ 1,005,904,000
Weighted Average Fixed Interest Rate	3.606%	3.577%
Weighted Average Variable Interest Rate	5.38%	5.34%
Weighted Average Remaining Maturity	9 years 3 months 25 days	9 years
Interest Rate Swap [Member] \| Derivative Maturity Over Ten Years From Balance Sheet Date
Derivative [Line Items]
Notional	$ 466,637,000	$ 466,637,000
Weighted Average Fixed Interest Rate	3.753%	3.753%
Weighted Average Variable Interest Rate	5.38%	5.34%
Weighted Average Remaining Maturity	14 years 6 months 25 days	14 years 3 months 25 days
Forward Starting Interest Rate Swap
Derivative [Line Items]
Notional	$ 1,100,000,000	$ 1,100,000,000
Weighted Average Fixed Interest Rate	4.00%	4.00%