Debt Securities Available for Sale - Securities Available-for-Sale (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 1,515,941	$ 1,701,379
Gross Unrealized Gains	141	16,943
Gross Unrealized (Losses)	(187,448)	(14,475)
Fair Value	1,328,634	1,703,847
U.S. government and agency obligations
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	67,771	34,711
Gross Unrealized Gains	0	404
Gross Unrealized (Losses)	(4,205)	(236)
Fair Value	63,566	34,879
Mortgage-backed securities and collateralized mortgage obligations
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	1,351,929	1,553,491
Gross Unrealized Gains	135	14,141
Gross Unrealized (Losses)	(170,337)	(13,273)
Fair Value	1,181,727	1,554,359
Municipal obligations
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	3,697	4,159
Gross Unrealized Gains	0	20
Gross Unrealized (Losses)	(122)	0
Fair Value	3,575	4,179
Corporate debt securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	92,544	109,018
Gross Unrealized Gains	6	2,378
Gross Unrealized (Losses)	(12,784)	(966)
Fair Value	$ 79,766	110,430
Trust preferred securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost		0
Gross Unrealized Gains		0
Gross Unrealized (Losses)		0
Fair Value		$ 0

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).

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-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
-Name Accounting Standards Codification
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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).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 45
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454

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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).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
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-Topic 326
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