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

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

Derivative Instruments and Hedging Activities Schedule of Interest Rate Swaptions (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
Derivative [Line Items]
Notional	$ (18,878,215,000)	$ (17,159,801,000)	$ (19,137,094,000)	$ (23,932,603,000)
Percentage of Underlying Swaps Tied to SOFR	2210.00%
Percentage of Underlying Swaps Tied to LIBOR	7790.00%	10000.00%
Interest Rate Swaption [Member] \| Long [Member] \| Variable Income Interest Rate [Member] \| Less Than Six Months Remaining Maturity [Member]
Derivative [Line Items]
Cost Basis	$ (11,314,000)	$ (11,314,000)
Fair Value	$ (21,175,000)	$ (3,539,000)
Weighted Average Remaining Maturity	2 months 10 days	5 months 10 days
Interest Rate Swaption [Member] \| Short [Member] \| Variable Income Interest Rate [Member] \| Greater than or Equal to Six Months Remaining Maturity
Derivative [Line Items]
Cost Basis	$ (47,963,000)	$ (26,329,000)
Fair Value	$ (63,404,000)	$ (23,958,000)
Weighted Average Remaining Maturity	1 year 3 months 14 days	1 year 5 months 24 days
Interest Rate Swaption [Member] \| Short [Member] \| Fixed Income Interest Rate [Member] \| Less Than Six Months Remaining Maturity [Member]
Derivative [Line Items]
Cost Basis	$ (10,640,000)	$ (10,640,000)
Fair Value	$ (205,000)	$ (6,856,000)
Weighted Average Remaining Maturity	2 months 9 days	5 months 3 days
Interest Rate Swaption [Member] \| Short [Member] \| Fixed Income Interest Rate [Member] \| Greater than or Equal to Six Months Remaining Maturity
Derivative [Line Items]
Cost Basis	$ (47,963,000)	$ (26,329,000)
Fair Value	$ (50,640,000)	$ (24,468,000)
Weighted Average Remaining Maturity	1 year 8 months 11 days	1 year 6 months 28 days
Underlying Swap [Member] \| Long [Member] \| Variable Income Interest Rate [Member] \| Less Than Six Months Remaining Maturity [Member]
Derivative [Line Items]
Weighted Average Remaining Maturity	10 years	10 years
Notional	$ (886,000,000)	$ (886,000,000)
Weighted Average Fixed Interest Rate	2.26%	2.26%
Underlying Swap [Member] \| Short [Member] \| Variable Income Interest Rate [Member] \| Greater than or Equal to Six Months Remaining Maturity
Derivative [Line Items]
Weighted Average Remaining Maturity	10 years	10 years
Notional	$ (1,280,000,000)	$ (780,000,000)
Weighted Average Fixed Interest Rate	1.82%	1.72%
Underlying Swap [Member] \| Short [Member] \| Fixed Income Interest Rate [Member] \| Less Than Six Months Remaining Maturity [Member]
Derivative [Line Items]
Weighted Average Remaining Maturity	10 years	10 years
Notional	$ (1,087,000,000)	$ (1,087,000,000)
Weighted Average Fixed Interest Rate	1.26%	1.26%
Underlying Swap [Member] \| Short [Member] \| Fixed Income Interest Rate [Member] \| Greater than or Equal to Six Months Remaining Maturity
Derivative [Line Items]
Weighted Average Remaining Maturity	10 years	10 years
Notional	$ (1,280,000,000)	$ (780,000,000)
Weighted Average Fixed Interest Rate	1.82%	1.72%