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Securities - Narrative (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2026 USD ($) investment	Jun. 30, 2025 USD ($)	Jun. 30, 2026 USD ($) investment	Jun. 30, 2025 USD ($)	Dec. 31, 2025 USD ($)
Debt Securities, Available-for-sale [Line Items]
Realized gains or losses on debt securities available for sale	$ 0	$ 56,000	$ 0	$ 56,000
Number of acquired nonperforming investments which full recovery is expected | investment	1		1
Acquired nonperforming investment which full recovery is expected	$ 20,600,000		$ 20,600,000
Equity investments	75,965,000		75,965,000		$ 91,882,000
Corporate debt securities
Debt Securities, Available-for-sale [Line Items]
Amortized cost	190,200,000		190,200,000
Estimated fair value	190,800,000		190,800,000
State and municipal debt obligations
Debt Securities, Available-for-sale [Line Items]
Amortized cost	166,400,000		166,400,000
Estimated fair value	173,400,000		173,400,000
Asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Amortized cost	461,100,000		461,100,000
Estimated fair value	$ 461,000,000.0		$ 461,000,000.0

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