Securities Purchased under Resale Agreements and Sold Under Repurchase Agreements - Schedule of Balance Sheet Offsetting for Resale and Repurchase Agreements (Details) - USD ($)	Mar. 31, 2026	Dec. 31, 2025
Resale agreements
Security Purchased under Agreement to Resell, Subject to Master Netting Arrangement, before Offset	$ 425,000,000	$ 425,000,000
Security Purchased under Agreement to Resell, Subject to Master Netting Arrangement, Liability Offset	0	0
Securities Purchased under Agreements to Resell, Total	425,000,000	425,000,000
Gross Amounts Not Offset on the Consolidated Balance Sheet
Collateral Received	(425,000,000)	(350,953,000)
Net Amount	0	74,047,000
Repurchase agreements
Security Sold under Agreement to Repurchase, Subject to Master Netting Arrangement, before Offset	494,027,000	0
Security Sold under Agreement to Repurchase, Subject to Master Netting Arrangement, Asset Offset	0
Securities Sold under Agreements to Repurchase, Total	494,027,000	$ 0
Assets Purchased under Agreements to Repurchase Gross Amounts Not Offset [Abstract]
Collateral pledged	(493,573,000)
Net Amount	$ 454,000