Gains from calls (requests of early payments) on debt securities which are classified as held-to-maturity securities.

No definition available.

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- Definition

Amount, after 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), investment in debt security measured at amortized cost (held-to-maturity), and investment in debt security measured at fair value with change in fair value recognized in net income (trading).

+ References

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- Definition

Amount of allowance for credit loss for debt security measured at amortized cost (held-to-maturity).

+ References

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- Definition

Amount, after allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
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-Publisher FASB
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- References

No definition available.

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No definition available.

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- Definition

Amount of accumulated unrecognized gain on investment in debt security measured at amortized cost (held-to-maturity).

+ References

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-Topic 320
-SubTopic 10
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- Definition

Amount of accumulated unrealized loss on investment in debt security measured at amortized cost (held-to-maturity).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
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- Definition

Fair value of investment in debt security measured at amortized cost (held-to-maturity).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
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- References

No definition available.

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Securities, Held to Maturity (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Held-to-maturity securities, fair value to amortized cost [Abstract]
Amortized cost	$ 912,876		$ 912,876		$ 919,517
Unrealized gains	135		135		209
Unrealized losses	(104,370)		(104,370)		(107,079)
Estimated fair value	808,641		808,641		812,647
Allowance for credit losses on HTM securities	0		0		0
Transactions of HTM securities [Abstract]
Gains from calls on HTM securities	0	$ 0	0	$ 4
Asset Pledged as Collateral [Member] \| Public Deposits or Other Purposes [Member]
Securities pledged [Abstract]
AFS and HTM securities	1,680,000		1,680,000		1,730,000
Asset Pledged as Collateral [Member] \| Securities Sold under Repurchase Agreements [Member]
Securities pledged [Abstract]
AFS and HTM securities	142,700		142,700		149,500
Federal Agency [Member]
Held-to-maturity securities, fair value to amortized cost [Abstract]
Amortized cost	100,000		100,000		100,000
Unrealized gains	0		0		0
Unrealized losses	(19,620)		(19,620)		(20,678)
Estimated fair value	80,380		80,380		79,322
Mortgage-Backed, Government Sponsored Enterprises [Member]
Held-to-maturity securities, fair value to amortized cost [Abstract]
Amortized cost	239,102		239,102		249,511
Unrealized gains	0		0		0
Unrealized losses	(35,641)		(35,641)		(36,819)
Estimated fair value	203,461		203,461		212,692
Mortgage-Backed, U.S. Government Agency Securities [Member]
Held-to-maturity securities, fair value to amortized cost [Abstract]
Amortized cost	17,391		17,391		18,396
Unrealized gains	1		1		4
Unrealized losses	(827)		(827)		(619)
Estimated fair value	16,565		16,565		17,781
Collateralized Mortgage Obligations, Government-Sponsored Enterprises [Member]
Held-to-maturity securities, fair value to amortized cost [Abstract]
Amortized cost	197,597		197,597		207,738
Unrealized gains	84		84		200
Unrealized losses	(15,575)		(15,575)		(14,876)
Estimated fair value	182,106		182,106		193,062
Collateralized Mortgage Obligations, U.S. Government Agency Securities [Member]
Held-to-maturity securities, fair value to amortized cost [Abstract]
Amortized cost	65,298		65,298		66,628
Unrealized gains	0		0		0
Unrealized losses	(11,007)		(11,007)		(9,842)
Estimated fair value	54,291		54,291		56,786
State & Municipal [Member]
Held-to-maturity securities, fair value to amortized cost [Abstract]
Amortized cost	293,488		293,488		277,244
Unrealized gains	50		50		5
Unrealized losses	(21,700)		(21,700)		(24,245)
Estimated fair value	$ 271,838		$ 271,838		$ 253,004