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

Reverse Repurchase Agreements (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Assets Sold under Agreements to Repurchase [Line Items]
Amounts due to counterparties as collateral for reverse repurchase agreements	$ 347,337	$ 541,709
Reverse repurchase agreements	483,916	1,066,935
Repurchase agreements	9,084,712	8,603,011
US Treasury Securities
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase agreements	200,766	888,295
Collateral Pledged
Assets Sold under Agreements to Repurchase [Line Items]
Reverse repurchase agreements	288,600	189,300
US Treasury Securities
Assets Sold under Agreements to Repurchase [Line Items]
Reverse repurchase agreements	195,300	877,600
Collateral Pledged
Assets Sold under Agreements to Repurchase [Line Items]
Amounts due to counterparties as collateral for reverse repurchase agreements	$ 247,200	$ 189,500