XML 37 R27.htm IDEA: XBRL DOCUMENT v3.23.2

Investment Securities (Tables)

6 Months Ended

Jun. 30, 2023

Investments, Debt and Equity Securities [Abstract]

Amortized Cost, Unrealized Gains And Losses, And Fair Value Of Investment Securities

The following tables present the amortized cost, unrealized gains, unrealized losses, and approximate fair values of debt securities as of the dates presented:

			June 30, 2023
(in thousands)			Amortized Cost						Unrealized Gains						Unrealized Losses						Fair Value
Available for sale:
U.S. Treasury and agencies			$	1,585,683					$	2,020					$	(98,153)					$	1,489,550
Obligations of states and political subdivisions			1,082,310						7,467						(26,044)						1,063,733
Mortgage-backed securities and collateralized mortgage obligations			6,872,855						3,503						(431,213)						6,445,145
Total available for sale securities			$	9,540,848					$	12,990					$	(555,410)					$	8,998,428
Held to maturity:
Mortgage-backed securities and collateralized mortgage obligations			$	2,388					$	734					$	—					$	3,122
Total held to maturity securities			$	2,388					$	734					$	—					$	3,122

			December 31, 2022
(in thousands)			Amortized Cost						Unrealized Gains						Unrealized Losses						Fair Value
Available for sale:
U.S. Treasury and agencies			$	1,035,532					$	—					$	(99,358)					$	936,174
Obligations of states and political subdivisions			297,610						231						(28,041)						269,800
Mortgage-backed securities and collateralized mortgage obligations			2,405,139						3						(414,950)						1,990,192
Total available for sale securities			$	3,738,281					$	234					$	(542,349)					$	3,196,166
Held to maturity:
Mortgage-backed securities and collateralized mortgage obligations			$	2,476					$	721					$	—					$	3,197
Total held to maturity securities			$	2,476					$	721					$	—					$	3,197

Debt Securities, Available-for-sale, Unrealized Loss Position, Fair Value

The following tables present debt securities that were in an unrealized loss position as of the dates presented, based on the length of time individual securities have been in an unrealized loss position.

			June 30, 2023
			Less than 12 Months												12 Months or Longer												Total
(in thousands)			Fair Value						Unrealized Losses						Fair Value						Unrealized Losses						Fair Value						Unrealized Losses
Available for sale:
U.S. Treasury and agencies			$	546,511					$	3,036					$	837,124					$	95,117					$	1,383,635					$	98,153
Obligations of states and political subdivisions			249,310						2,465						136,483						23,579						385,793						26,044
Mortgage-backed securities and collateralized mortgage obligations			3,155,741						24,273						1,855,361						406,940						5,011,102						431,213
Total temporarily impaired securities			$	3,951,562					$	29,774					$	2,828,968					$	525,636					$	6,780,530					$	555,410

			December 31, 2022
			Less than 12 Months												12 Months or Longer												Total
(in thousands)			Fair Value						Unrealized Losses						Fair Value						Unrealized Losses						Fair Value						Unrealized Losses
Available for sale:
U.S. Treasury and agencies			$	734,473					$	71,967					$	201,701					$	27,391					$	936,174					$	99,358
Obligations of states and political subdivisions			160,078						10,037						60,381						18,004						220,459						28,041
Mortgage-backed securities and collateralized mortgage obligations			592,032						61,813						1,398,061						353,137						1,990,093						414,950
Total temporarily impaired securities			$	1,486,583					$	143,817					$	1,660,143					$	398,532					$	3,146,726					$	542,349

Schedule Of Maturities Of Investment Securities

The following table presents the contractual maturities of debt securities at June 30, 2023:  

			Available For Sale												Held To Maturity
(in thousands)			Amortized Cost						Fair Value						Amortized Cost						Fair Value
Due within one year			$	45,150					$	44,770					$	—					$	—
Due after one year through five years			1,847,803						1,810,546						3						3
Due after five years through ten years			2,746,974						2,646,514						4						14
Due after ten years			4,900,921						4,496,598						2,381						3,105
Total securities			$	9,540,848					$	8,998,428					$	2,388					$	3,122

Investment Securities Pledged To Secure Borrowings And Public Deposits

The following table presents, as of June 30, 2023, investment securities which were pledged to secure borrowings, public deposits, and repurchase agreements as permitted or required by law: 

(in thousands)			Amortized Cost						Fair Value
To state and local governments to secure public deposits			$	1,673,773					$	1,515,229
To secure repurchase agreements			624,279						557,728
Other securities pledged			2,543,803						2,318,996
Total pledged securities			$	4,841,855					$	4,391,953

X

- Definition

Tabular disclosure of fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 326
-SubTopic 30
-Name Accounting Standards Codification
-Section 55
-Paragraph 8
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479081/326-30-55-8

Reference 2: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-6

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479106/326-30-50-4

+ Details

Name:	us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionFairValueTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments.

+ References

No definition available.

+ Details

Name:	us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of financial instruments held by the entity for its own account for trading or investment purposes that are carried at fair value and pledged to counterparties as collateral for financing transactions. Description may include equity, fixed income, debt or other securities.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 860
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481444/860-30-45-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 860
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 1A
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481420/860-30-50-1A

+ Details

Name:	us-gaap_ScheduleOfFinancialInstrumentsOwnedAndPledgedAsCollateralTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of unrealized gains and losses on investments.

+ References

No definition available.

+ Details

Name:	us-gaap_UnrealizedGainLossOnInvestmentsTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration