Securities - Schedule of Available for Sale Securities from Amortized Cost to Fair Value (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 1,148,734	$ 1,169,578
Gross unrealized gains	1,558	1,024
Gross unrealized losses	(104,409)	(112,981)
Allowance for Credit Losses	0	0
Estimated Fair Value	1,045,883	1,057,621
Debt securities available for sale accrued interest	6,100	5,600
U.S. government-sponsored enterprise debt securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	470,468	480,359
Gross unrealized gains	1,492	981
Gross unrealized losses	(36,971)	(43,666)
Allowance for Credit Losses	0	0
Estimated Fair Value	434,989	437,674
Corporate debt securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	296,813	306,898
Gross unrealized gains	0	1
Gross unrealized losses	(28,546)	(26,199)
Allowance for Credit Losses	0	0
Estimated Fair Value	268,267	280,700
U.S. government agency debt securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	370,791	373,593
Gross unrealized gains	58	42
Gross unrealized losses	(38,678)	(42,814)
Allowance for Credit Losses	0	0
Estimated Fair Value	332,171	330,821
Collateralized loan obligations
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	5,000	5,000
Gross unrealized gains	0	0
Gross unrealized losses	(155)	(226)
Allowance for Credit Losses	0	0
Estimated Fair Value	4,845	4,774
Municipal bonds
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	1,732	1,731
Gross unrealized gains	0	0
Gross unrealized losses	(59)	(75)
Allowance for Credit Losses	0	0
Estimated Fair Value	1,673	1,656
U.S. treasury securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	3,930	1,997
Gross unrealized gains	8	0
Gross unrealized losses	0	(1)
Allowance for Credit Losses	0	0
Estimated Fair Value	3,938	1,996
Residential Mortgage Backed Securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	735,200	743,000
Estimated Fair Value	668,800	666,500
Commercial Mortgage Backed Securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	89,300	91,000
Estimated Fair Value	$ 80,500	$ 80,900

Debt Securities Available For Sale Accrued Interest

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- Definition

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
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Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

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-Publisher FASB
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Amount excluding accrued interest, of allowance for credit loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
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Amortized cost excluding accrued interest, before allowance for credit loss, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount excluding accrued interest, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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