Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2021

Commitments and Contingencies Disclosure [Abstract]

Outstanding Financial Instruments Contract Amounts Represent Credit Risk

The following table summarizes the outstanding amounts of credit-related financial instruments with off-balance sheet risk:

(In thousands)	At June 30, 2021		At December 31, 2020
Commitments to extend credit	$	7,143,906	$	6,517,840
Standby letters of credit	213,751		207,201
Commercial letters of credit	50,120		30,522
Total credit-related financial instruments with off-balance sheet risk	$	7,407,777	$	6,755,563

Activity In Allowance For Losses

The following table summarizes the activity in, as well as the loan and lease balances that were evaluated for, ACL on loans and leases:

	At or for the three months ended June 30,
	2021						2020
(In thousands)	Commercial Portfolio		Consumer Portfolio		Total		Commercial Portfolio		Consumer Portfolio		Total
ACL on loans and leases:
Balance, beginning of period	$	283,906	$	44,445	$	328,351	$	261,926	$	73,005	$	334,931
(Benefit) provision	(21,077)		(497)		(21,574)		44,605		(4,602)		40,003
Charge-offs	(594)		(2,808)		(3,402)		(15,294)		(2,780)		(18,074)
Recoveries	836		3,734		4,570		283		1,379		1,662
Balance, end of period	$	263,071	$	44,874	$	307,945	$	291,520	$	67,002	$	358,522

	At or for the six months ended June 30,
	2021						2020
(In thousands)	Commercial Portfolio		Consumer Portfolio		Total		Commercial Portfolio		Consumer Portfolio		Total
ACL on loans and leases:
Balance, beginning of period	$	312,244	$	47,187	$	359,431	$	161,669	$	47,427	$	209,096
Adoption of ASU No. 2016-13 (CECL)	—		—		—		34,024		23,544		57,568
(Benefit) provision	(44,730)		(2,603)		(47,333)		115,848		240		116,088
Charge-offs	(6,915)		(5,782)		(12,697)		(20,868)		(7,367)		(28,235)
Recoveries	2,472		6,072		8,544		847		3,158		4,005
Balance, end of period	$	263,071	$	44,874	$	307,945	$	291,520	$	67,002	$	358,522
Individually evaluated for impairment	11,537		4,560		16,097		15,271		4,484		19,755
Collectively evaluated for impairment	$	251,534	$	40,314	$	291,848	$	276,249	$	62,518	$	338,767
Loan and lease balances:
Individually evaluated for impairment	$	128,937	$	110,521	$	239,458	$	165,010	$	158,146	$	323,156
Collectively evaluated for impairment	14,699,454		6,536,089		21,235,543		14,589,073		6,890,288		21,479,361
Loans and leases	$	14,828,391	$	6,646,610	$	21,475,001	$	14,754,083	$	7,048,434	$	21,802,517

The following table provides a summary of activity in the allowance for credit losses on unfunded loan commitments:

	Three months ended June 30,				Six months ended June 30,
(In thousands)	2021		2020		2021		2020
Beginning balance	$	12,800	$	10,084	$	12,755	$	2,367
Adoption of ASU No. 2016-13 (CECL)	—		—		—		9,139
(Benefit) provision	(826)		655		(781)		(767)
Ending balance	$	11,974	$	10,739	$	11,974	$	10,739