Resale and Repurchase Agreements Remaining Contractual Maturities of Repurchase Agreements (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
U.S. government and federal agency obligations
Assets Sold under Agreements to Repurchase [Line Items]
Assets Sold under Agreements to Repurchase, Repurchase Liability	$ 420,128	$ 518,937
U.S. government and federal agency obligations | Overnight and continuous
Assets Sold under Agreements to Repurchase [Line Items]
Assets Sold under Agreements to Repurchase, Repurchase Liability	420,128	518,937
U.S. government and federal agency obligations | Up to 90 days
Assets Sold under Agreements to Repurchase [Line Items]
Assets Sold under Agreements to Repurchase, Repurchase Liability	0	0
U.S. government and federal agency obligations | Greater than 90 days
Assets Sold under Agreements to Repurchase [Line Items]
Assets Sold under Agreements to Repurchase, Repurchase Liability	0	0
Government-sponsored enterprise obligations
Assets Sold under Agreements to Repurchase [Line Items]
Assets Sold under Agreements to Repurchase, Repurchase Liability	10,526	9,969
Government-sponsored enterprise obligations | Overnight and continuous
Assets Sold under Agreements to Repurchase [Line Items]
Assets Sold under Agreements to Repurchase, Repurchase Liability	10,526	9,969
Government-sponsored enterprise obligations | Up to 90 days
Assets Sold under Agreements to Repurchase [Line Items]
Assets Sold under Agreements to Repurchase, Repurchase Liability	0	0
Government-sponsored enterprise obligations | Greater than 90 days
Assets Sold under Agreements to Repurchase [Line Items]
Assets Sold under Agreements to Repurchase, Repurchase Liability	0	0
Agency mortgage-backed securities
Assets Sold under Agreements to Repurchase [Line Items]
Assets Sold under Agreements to Repurchase, Repurchase Liability	1,356,974	1,673,006
Agency mortgage-backed securities | Overnight and continuous
Assets Sold under Agreements to Repurchase [Line Items]
Assets Sold under Agreements to Repurchase, Repurchase Liability	1,322,624	1,641,156
Agency mortgage-backed securities | Up to 90 days
Assets Sold under Agreements to Repurchase [Line Items]
Assets Sold under Agreements to Repurchase, Repurchase Liability	4,350	9,600
Agency mortgage-backed securities | Greater than 90 days
Assets Sold under Agreements to Repurchase [Line Items]
Assets Sold under Agreements to Repurchase, Repurchase Liability	30,000	22,250
Non-agency mortgage-backed securities
Assets Sold under Agreements to Repurchase [Line Items]
Assets Sold under Agreements to Repurchase, Repurchase Liability	37,649	24,273
Non-agency mortgage-backed securities | Overnight and continuous
Assets Sold under Agreements to Repurchase [Line Items]
Assets Sold under Agreements to Repurchase, Repurchase Liability	37,649	24,273
Non-agency mortgage-backed securities | Up to 90 days
Assets Sold under Agreements to Repurchase [Line Items]
Assets Sold under Agreements to Repurchase, Repurchase Liability	0	0
Non-agency mortgage-backed securities | Greater than 90 days
Assets Sold under Agreements to Repurchase [Line Items]
Assets Sold under Agreements to Repurchase, Repurchase Liability	0	0
Asset-backed securities
Assets Sold under Agreements to Repurchase [Line Items]
Assets Sold under Agreements to Repurchase, Repurchase Liability	373,127	511,691
Asset-backed securities | Overnight and continuous
Assets Sold under Agreements to Repurchase [Line Items]
Assets Sold under Agreements to Repurchase, Repurchase Liability	323,769	462,841
Asset-backed securities | Up to 90 days
Assets Sold under Agreements to Repurchase [Line Items]
Assets Sold under Agreements to Repurchase, Repurchase Liability	18,227	30,623
Asset-backed securities | Greater than 90 days
Assets Sold under Agreements to Repurchase [Line Items]
Assets Sold under Agreements to Repurchase, Repurchase Liability	31,131	18,227
Other debt securities
Assets Sold under Agreements to Repurchase [Line Items]
Assets Sold under Agreements to Repurchase, Repurchase Liability	69,262	65,167
Other debt securities | Overnight and continuous
Assets Sold under Agreements to Repurchase [Line Items]
Assets Sold under Agreements to Repurchase, Repurchase Liability	69,262	65,167
Other debt securities | Up to 90 days
Assets Sold under Agreements to Repurchase [Line Items]
Assets Sold under Agreements to Repurchase, Repurchase Liability	0	0
Other debt securities | Greater than 90 days
Assets Sold under Agreements to Repurchase [Line Items]
Assets Sold under Agreements to Repurchase, Repurchase Liability	0	0
Total repurchase agreements, gross amount recognized
Assets Sold under Agreements to Repurchase [Line Items]
Assets Sold under Agreements to Repurchase, Repurchase Liability	2,267,666	2,803,043
Total repurchase agreements, gross amount recognized | Overnight and continuous
Assets Sold under Agreements to Repurchase [Line Items]
Assets Sold under Agreements to Repurchase, Repurchase Liability	2,183,958	2,722,343
Total repurchase agreements, gross amount recognized | Up to 90 days
Assets Sold under Agreements to Repurchase [Line Items]
Assets Sold under Agreements to Repurchase, Repurchase Liability	22,577	40,223
Total repurchase agreements, gross amount recognized | Greater than 90 days
Assets Sold under Agreements to Repurchase [Line Items]
Assets Sold under Agreements to Repurchase, Repurchase Liability	$ 61,131	$ 40,477