Fair Value of Assets and Liabilities (Tables)

12 Months Ended

Dec. 31, 2021

Summary Of The Balances Of Assets And Liabilities Measured At Fair Value On A Recurring Basis

The following tables present the balances of assets and liabilities measured at fair value on a recurring basis as of December 31, 2021 and 2020:


			Fair Value Measurements at Reporting Date Using
	Balance as of December 31, 2021		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Description
	(In thousands)
Assets
Securities available for sale
Government-sponsored residential mortgage-backed securities	$	5,524,708	$	—	$	5,524,708	$	—
Government-sponsored commercial mortgage-backed securities	1,408,868		—		1,408,868		—
U.S. Agency bonds	1,175,014		—		1,175,014		—
U.S. Treasury securities	88,605		88,605		—		—
State and municipal bonds and obligations	280,329		—		280,329		—
Small Business Administration pooled securities	32,103		—		32,103		—
Other debt securities	1,597		—		1,597		—
Rabbi trust investments	104,372		96,190		8,182		—
Loans held for sale	1,206		—		1,206		—
Interest rate swap contracts
Customer-related positions	64,338		—		64,338		—
Risk participation agreements	315		—		315		—
Foreign currency forward contracts
Matched customer book	61		—		61		—
Total	$	8,681,516	$	184,795	$	8,496,721	$	—
Liabilities
Interest rate swap contracts
Customer-related positions	$	17,880	$	—	$	17,880	$	—
Risk participation agreements	580		—		580		—
Foreign currency forward contracts
Matched customer book	46		—		46		—
Foreign currency loan	87		—		87		—
Total	$	18,593	$	—	$	18,593	$	—


			Fair Value Measurements at Reporting Date Using
Description	Balance as of December 31, 2020		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	(In thousands)
Assets
Securities available for sale
Government-sponsored residential mortgage-backed securities	$	2,148,800	$	—	$	2,148,800	$	—
Government-sponsored commercial mortgage-backed securities	17,081		—		17,081		—
U.S. Agency bonds	666,709		—		666,709		—
U.S. Treasury securities	70,369		70,369		—		—
State and municipal bonds and obligations	280,902		—		280,902		—
Rabbi trust investments	91,683		83,884		7,799		—
Loans held for sale	1,140		—		1,140		—
Interest rate swap contracts
Customer-related positions	141,822		—		141,822		—
Risk participation agreements	722		—		722		—
Foreign currency forward contracts
Matched customer book	90		—		90		—
Foreign currency loan	9		—		9		—
Total	$	3,419,327	$	154,253	$	3,265,074	$	—
Liabilities
Interest rate swap contracts
Customer-related positions	$	42,600	$	—	$	42,600	$	—
Risk participation agreements	1,230		—		1,230		—
Foreign currency forward contracts
Matched customer book	77		—		77		—
Foreign currency loan	69		—		69		—
Total	$	43,976	$	—	$	43,976	$	—

Summary Of The Fair Value Of Assets And Liabilities Measured At Fair Value On A Nonrecurring Basis

The following tables summarize the fair value of assets and liabilities measured at fair value on a nonrecurring basis, as of December 31, 2021 and 2020.


			Fair Value Measurements at Reporting Date Using
Description	Balance as of December 31, 2021		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	(In thousands)
Assets
Collateral-dependent impaired loans whose fair value is based upon appraisals	$	12,068	$	—	$	—	$	12,068


			Fair Value Measurements at Reporting Date Using
Description	Balance as of December 31, 2020		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	(In thousands)
Assets
Collateral-dependent impaired loans whose fair value is based upon appraisals	$	11,036	$	—	$	—	$	11,036

Schedule of Fair Value of Financial Instruments

The estimated fair values and related carrying amounts for assets and liabilities for which fair value is only disclosed are shown below as of the dates indicated:


					Fair Value Measurements at Reporting Date Using
	Carrying Value as of December 31, 2021		Fair Value as of December 31, 2021		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	(Dollars in thousands)
Assets
Loans, net of allowance for loan losses	$	12,157,281	$	12,282,323	$	—	$	—	$	12,282,323
FHLB stock	10,904		10,904		—		10,904		—
Bank-owned life insurance	157,091		157,091		—		157,091		—
Liabilities
Deposits	$	19,628,311	$	19,626,376	$	—	$	19,626,376	$	—
FHLB advances	14,020		13,558		—		13,558		—
Escrow deposits from borrowers	20,258		20,258		—		20,258		—


					Fair Value Measurements at Reporting Date Using
	Carrying Value as of December 31, 2020		Fair Value as of December 31, 2020		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	(Dollars in thousands)
Assets
Loans, net of allowance for loan losses	$	9,593,958	$	9,779,195	$	—	$	—	$	9,779,195
FHLB stock	8,805		8,805		—		8,805		—
Bank-owned life insurance	78,561		78,561		—		78,561		—
Liabilities
Deposits	$	12,155,784	$	12,155,843	$	—	$	12,155,843	$	—
FHLB advances	14,624		14,434		—		14,434		—
Escrow deposits from borrowers	13,425		13,425		—		13,425		—