Note 8 - Loans (Tables)

9 Months Ended

Sep. 30, 2021

Notes Tables

Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]

	September 30, 2021			December 31, 2020
	(In thousands)
Commercial loans	$	2,871,693		$	2,836,833
Residential mortgage loans		4,144,789			4,145,389
Commercial mortgage loans		7,835,528			7,555,027
Real estate construction loans		688,195			679,492
Equity lines		433,206			424,555
Installment and other loans		3,370			3,100
Gross loans	$	15,976,781		$	15,644,396
Allowance for loan losses		(131,945	)		(166,538	)
Unamortized deferred loan fees, net		(3,835	)		(2,494	)
Total loans, net	$	15,841,001		$	15,475,364

Impaired Financing Receivables [Table Text Block]

	Three Months Ended				Nine Months Ended
	September 30, 2021				September 30, 2021
	Average Recorded Investment		Interest Income Recognized		Average Recorded Investment		Interest Income Recognized
	(In thousands)
Commercial loans	$	16,379	$	—	$	22,989	$	—
Real estate construction loans		4,548		50		4,310		220
Commercial mortgage loans		37,017		140		37,964		297
Residential mortgage loans and equity lines		9,831		7		8,976		23
Total non-accrual loans	$	67,775	$	197	$	74,239	$	540

	Three Months Ended				Nine Months Ended
	September 30, 2020				September 30, 2020
	Average Recorded Investment		Interest Income Recognized		Average Recorded Investment		Interest Income Recognized
	(In thousands)
Commercial loans	$	30,346	$	148	$	30,723	$	242
Real estate construction loans		4,368		98		4,444		245
Commercial mortgage loans		40,708		268		37,730		966
Residential mortgage loans and equity lines		16,609		74		15,240		200
Total impaired loans	$	92,031	$	588	$	88,137	$	1,653

Schedule Of Impaired Loans And Related Allowance And Charge Off [Table Text Block]

	September 30, 2021
	Unpaid Principal Balance		Recorded Investment		Allowance
	(In thousands)
With no allocated allowance
Commercial loans	$	13,897	$	10,442	$	—
Real estate construction loans		7,201		5,491		—
Commercial mortgage loans		19,356		18,407		—
Residential mortgage loans and equity lines		6,989		6,813		—
Subtotal	$	47,443	$	41,153	$	—
With allocated allowance
Commercial loans	$	16,739	$	6,656	$	1,301
Commercial mortgage loans		18,664		18,561		5,229
Residential mortgage loans and equity lines		2,892		2,312		—
Subtotal	$	38,295	$	27,529	$	6,530
Total non-accrual loans	$	85,738	$	68,682	$	6,530

	December 31, 2020
	Unpaid Principal Balance		Recorded Investment		Allowance
	(In thousands)
With no allocated allowance
Commercial loans	$	23,784	$	20,698	$	—
Real estate construction loans		5,776		4,286		—
Commercial mortgage loans		22,877		22,287		—
Residential mortgage loans and equity lines		6,379		6,307		—
Subtotal	$	58,816	$	53,578	$	—
With allocated allowance
Commercial loans	$	13,703	$	6,372	$	1,030
Commercial mortgage loans		31,134		31,003		5,254
Residential mortgage loans and equity lines		5,005		4,452		145
Subtotal	$	49,842	$	41,827	$	6,429
Total impaired loans	$	108,658	$	95,405	$	6,429

Financing Receivable, Past Due [Table Text Block]

	September 30, 2021
	30-59 Days Past Due		60-89 Days Past Due		90 Days or More Past Due		Non-accrual Loans		Total Past Due		Loans Not Past Due		Total
	(In thousands)
Commercial loans	$	15,391	$	2,326	$	2,861	$	17,098	$	37,676	$	2,834,017	$	2,871,693
Real estate construction loans		—		—		—		5,491		5,491		682,704		688,195
Commercial mortgage loans		458		—		1,472		36,968		38,898		7,796,630		7,835,528
Residential mortgage loans and equity lines		—		2,451		—		9,125		11,576		4,566,419		4,577,995
Installment and other loans		8		—		—		—		8		3,362		3,370
Total loans	$	15,857	$	4,777	$	4,333	$	68,682	$	93,649	$	15,883,132	$	15,976,781

	December 31, 2020
	30-59 Days Past Due		60-89 Days Past Due		90 Days or More Past Due		Non-accrual Loans		Total Past Due		Loans Not Past Due		Total
	(In thousands)
Commercial loans	$	52,601	$	3,182	$	2,947	$	23,087	$	81,817	$	2,755,016	$	2,836,833
Real estate construction loans		6,257		—		—		4,286		10,543		668,949		679,492
Commercial mortgage loans		45,186		18,069		2,035		33,715		99,005		7,456,022		7,555,027
Residential mortgage loans and equity lines		14,315		4,223		—		6,596		25,134		4,544,810		4,569,944
Installment and other loans		43		—		—		—		43		3,057		3,100
Total loans	$	118,402	$	25,474	$	4,982	$	67,684	$	216,542	$	15,427,854	$	15,644,396

Schedule Of Troubled Debt Restructurings [Table Text Block]

	Three Months Ended September 30, 2021								September 30, 2021
	No. of Contracts		Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment		Charge-offs		Specific Reserve
	(In thousands)
Commercial loans		—	$	—	$	—	$	—	$	—
Residential mortgage loans and equity lines		1		479		479		—		14
Total		1	$	479	$	479	$	—	$	14

	Three Months Ended September 30, 2020								September 30, 2020
	No. of Contracts		Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment		Charge-offs		Specific Reserve
	(In thousands)
Commercial loans		2	$	2,983	$	2,983	$	—	$	203
Residential mortgage loans and equity lines		—		—		—		—		—
Total		2	$	2,983	$	2,983	$	—	$	203

	Nine Months Ended September 30, 2021								September 30, 2021
	No. of Contracts		Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment		Charge-offs		Specific Reserve
	(In thousands)
Commercial loans		1	$	686	$	686	$	—	$	—
Residential mortgage loans and equity lines		1		479		479		—		14
Total		2	$	1,165	$	1,165	$	—	$	14

	Nine Months Ended September 30, 2020								September 30, 2020
	No. of Contracts		Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment		Charge-offs		Specific Reserve
	(In thousands)
Commercial loans		5	$	5,417	$	5,417	$	—	$	204
Residential mortgage loans and equity lines		—		—		—		—		—
Total		5	$	5,417	$	5,417	$	—	$	204

Financing Receivable, Troubled Debt Restructuring [Table Text Block]

	September 30, 2021
	Payment Deferral		Rate Reduction		Rate Reduction and Payment Deferral		Total
	(In thousands)
Accruing TDRs
Commercial loans	$	1,453	$	—	$	—	$	1,453
Commercial mortgage loans		441		5,552		13,114		19,107
Residential mortgage loans		1,726		251		1,869		3,846
Total accruing TDRs	$	3,620	$	5,803	$	14,983	$	24,406

	December 31, 2020
	Payment Deferral		Rate Reduction		Rate Reduction and Payment Deferral		Total
	(In thousands)
Accruing TDRs
Commercial loans	$	3,983	$	—	$	—	$	3,983
Commercial mortgage loans		515		5,635		13,425		19,575
Residential mortgage loans		1,724		275		2,164		4,163
Total accruing TDRs	$	6,222	$	5,910	$	15,589	$	27,721

Non Accrual Troubled Debt Restructurings [Table Text Block]

	September 30, 2021
	Payment Deferral		Rate Reduction		Rate Reduction and Payment Deferral		Total
	(In thousands)
Non-accrual TDRs
Commercial loans	$	7,784	$	—	$	—	$	7,784
Commercial mortgage loans		—		—		—		—
Residential mortgage loans		500		—		—		500
Total non-accrual TDRs	$	8,284	$	—	$	—	$	8,284

	December 31, 2020
	Payment Deferral		Rate Reduction		Rate Reduction and Payment Deferral		Total
	(In thousands)
Non-accrual TDRs
Commercial loans	$	8,462	$	—	$	—	$	8,462
Residential mortgage loans		523		—		—		523
Total non-accrual TDRs	$	8,985	$	—	$	—	$	8,985

Activity Within The Troubled Debt Resturings [Table Text Block]

	Three Months Ended September 30,						Nine Months Ended September 30,
	2021			2020			2021			2020
	(In thousands)
Accruing TDRs
Beginning balance	$	27,261		$	31,671		$	27,721		$	35,336
New restructurings		(208	)		2,983			479			5,417
Restructured loans restored to accrual status		—			263			—			263
Charge-offs		—			—			—			—
Payments		(2,406	)		(6,330	)		(3,553	)		(12,429	)
Restructured loans placed on non-accrual status		(241	)		—			(241	)		—
Ending balance	$	24,406		$	28,587		$	24,406		$	28,587

	Three Months Ended September 30,						Nine Months Ended September 30,
	2021			2020			2021			2020
	(In thousands)
Non-accrual TDRs
Beginning balance	$	8,402		$	12,670		$	8,985		$	18,048
New restructurings		—			—			—			—
Restructured loans placed on non-accrual status		234			—			241			—
Charge-offs		—			—			—			(4,970	)
Payments		(352	)		(2,488	)		(710	)		(2,896	)
Restructured loans restored to accrual status		—			(263	)		(232	)		(263	)
Ending balance	$	8,284		$	9,919		$	8,284		$	9,919

Financing Receivable Credit Quality Indicators [Table Text Block]

	December 31, 2020
	Pass/Watch		Special Mention		Substandard		Doubtful		Total
	(In thousands)
Commercial loans	$	2,581,128	$	141,344	$	108,788	$	5,573	$	2,836,833
Real estate construction loans		593,196		82,010		4,286		—		679,492
Commercial mortgage loans		7,202,568		186,283		166,176		—		7,555,027
Residential mortgage loans and equity lines		4,547,052		11,647		11,245		—		4,569,944
Installment and other loans		3,100		—		—		—		3,100
Total gross loans	$	14,927,044	$	421,284	$	290,495	$	5,573	$	15,644,396

Loan Held for Investment by Loan Portfolio Segments, Internal Risk Ratings and Vintage Year [Table Text Block]

	Loans Amortized Cost Basis by Origination Year
September 30, 2021	2021		2020		2019			2018			2017		Prior			Revolving Loans			Revolving Converted to Term Loans			Total
	(In thousands)
Commercial loans
Pass/Watch	$	552,079	$	309,944	$	245,936		$	188,790		$	87,579	$	69,354		$	1,266,946		$	7,650		$	2,728,278
Special Mention		93		570		4,506			1,703			2,871		—			22,073			89			31,905
Substandard		31		6,286		21,896			16,829			13,077		5,319			39,457			6,089			108,984
Doubtful		—		—		—			—			—		—			901			—			901
Loss		—		—		—			—			—		—			—			—			—
Total	$	552,203	$	316,800	$	272,338		$	207,322		$	103,527	$	74,673		$	1,329,377		$	13,828		$	2,870,068
YTD period charge-offs	$	—	$	927	$	507		$	366		$	—	$	50		$	17,649		$	—		$	19,499
YTD period recoveries		—		—		—			(75	)		—		(169	)		(1,301	)		—			(1,545	)
Net	$	—	$	927	$	507		$	291		$	—	$	(119	)	$	16,348		$	—		$	17,954
Real estate construction loans
Pass/Watch	$	160,357	$	213,737	$	152,626		$	64,908		$	30,272	$	—		$	—		$	—		$	621,900
Special Mention		4,772		22,233		11,800			17,306			—		—			—			—			56,111
Substandard		—		—		3,344			—			—		4,066			—			—			7,410
Doubtful		—		—		—			—			—		—			—			—			—
Loss		—		—		—			—			—		—			—			—			—
Total	$	165,129	$	235,970	$	167,770		$	82,214		$	30,272	$	4,066		$	—		$	—		$	685,421
YTD period charge-offs	$	—	$	—	$	—		$	—		$	—	$	—		$	—		$	—		$	—
YTD period recoveries		—		—		—			—			—		(76	)		—			—			(76	)
Net	$	—	$	—	$	—		$	—		$	—	$	(76	)	$	—		$	—		$	(76	)
Commercial mortgage loans
Pass/Watch	$	1,256,784	$	1,266,048	$	1,284,803		$	1,089,005		$	813,707	$	1,473,901		$	177,509		$	—		$	7,361,757
Special Mention		18,826		52,416		45,281			104,703			42,329		82,614			2,499			—			348,668
Substandard		1,116		235		10,906			46,149			1,590		62,095			856			—			122,947
Doubtful		—		—		—			—			—		—			—			—			—
Loss		—		—		—			—			—		—			—			—			—
Total	$	1,276,726	$	1,318,699	$	1,340,990		$	1,239,857		$	857,626	$	1,618,610		$	180,864		$	—		$	7,833,372
YTD period charge-offs	$	—	$	—	$	—		$	—		$	—	$	—		$	—		$	—		$	—
YTD period recoveries		—		—		(180	)		—			—		(21	)		(83	)		—			(284	)
Net	$	—	$	—	$	(180	)	$	—		$	—	$	(21	)	$	(83	)	$	—		$	(284	)
Residential mortgage loans
Pass/Watch	$	722,013	$	663,292	$	731,803		$	544,362		$	474,271	$	992,504		$	—		$	—		$	4,128,245
Special Mention		—		140		4,369			1,448			839		589			—			—			7,385
Substandard		479		167		1,921			2,520			1,167		4,466			—			—			10,720
Doubtful		—		—		—			—			—		—			—			—			—
Loss		—		—		—			—			—		—			—			—			—
Total	$	722,492	$	663,599	$	738,093		$	548,330		$	476,277	$	997,559		$	—		$	—		$	4,146,350
YTD period charge-offs	$	—	$	—	$	—		$	—		$	3	$	—		$	—		$	—		$	3
YTD period recoveries		—		—		—			—			—		(208	)		—			—			(208	)
Net	$	—	$	—	$	—		$	—		$	3	$	(208	)	$	—		$	—		$	(205	)
Equity lines
Pass/Watch	$	—	$	—	$	—		$	—		$	—	$	7		$	400,991		$	31,677		$	432,675
Special Mention		—		—		—			—			—		—			—			—			—
Substandard		—		—		—			—			—		—			1,240			450			1,690
Doubtful		—		—		—			—			—		—			—			—			—
Loss		—		—		—			—			—		—			—			—			—
Total	$	—	$	—	$	—		$	—		$	—	$	7		$	402,231		$	32,127		$	434,365
YTD period charge-offs	$	—	$	—	$	—		$	—		$	—	$	—		$	—		$	—		$	—
YTD period recoveries		—		—		—			—			—		—			(8	)		(58	)		(66	)
Net	$	—	$	—	$	—		$	—		$	—	$	—		$	(8	)	$	(58	)	$	(66	)
Installment and other loans
Pass/Watch	$	2,120	$	1,250	$	—		$	—		$	—	$	—		$	—		$	—		$	3,370
Special Mention		—		—		—			—			—		—			—			—			—
Substandard		—		—		—			—			—		—			—			—			—
Doubtful		—		—		—			—			—		—			—			—			—
Loss		—		—		—			—			—		—			—			—			—
Total	$	2,120	$	1,250	$	—		$	—		$	—	$	—		$	—		$	—		$	3,370
YTD period charge-offs	$	—	$	—	$	—		$	—		$	—	$	—		$	—		$	—		$	—
YTD period recoveries		—		—		—			—			—		—			—			—			—
Net	$	—	$	—	$	—		$	—		$	—	$	—		$	—		$	—		$	—
Total loans	$	2,718,670	$	2,536,318	$	2,519,191		$	2,077,723		$	1,467,702	$	2,694,915		$	1,912,472		$	45,955		$	15,972,946
Net charge-offs/(recoveries)	$	—	$	927	$	327		$	291		$	3	$	(424	)	$	16,257		$	(58	)	$	17,323

Financing Receivable, Allowance for Credit Loss [Table Text Block]

Three months ended September 30, 2021 and 2020
									Residential
				Real Estate			Commercial		Mortgage Loans			Installment
	Commercial			Construction			Mortgage		and			and Other
	Loans			Loans			Loans		Equity Lines			Loans		Total
	(In thousands)
June 30, 2021 Ending Balance	$	40,067		$	6,119		$	58,026	$	27,043		$	1	$	131,256
Provision/(reversal) for possible credit losses		674			149			2,786		(609	)		—		3,000
Charge-offs		(2,649	)		—			—		(3	)		—		(2,652	)
Recoveries		121			76			144		—			—		341
Net (charge-offs)/recoveries		(2,528	)		76			144		(3	)		—		(2,311	)
September 30, 2021 Ending Balance	$	38,213		$	6,344		$	60,956	$	26,431		$	1	$	131,945
Allowance for unfunded credit commitments June 30, 2021	$	4,388		$	3,581		$	81	$	—		$	—	$	8,050
Provision/(reversal) for possible credit losses		329			(396	)		117		—			—		50
Allowance for unfunded credit commitments September 30, 2021	$	4,717		$	3,185		$	198	$	—		$	—	$	8,100

								Residential
				Real Estate		Commercial		Mortgage Loans		Installment
	Commercial			Construction		Mortgage		and		and Other
	Loans			Loans		Loans		Equity Lines		Loans		Total
	(In thousands)
June 30, 2020 Ending Balance	$	82,256		$	26,700	$	41,132	$	19,592	$	—	$	169,680
Provision/(reversal) for possible credit losses		298			6,012		5,438		752		—		12,500
Charge-offs		(6,956	)		—		—		—		—		(6,956	)
Recoveries		3,796			—		95		15		—		3,906
Net (charge-offs)/recoveries		(3,160	)		—		95		15		—		(3,050	)
September 30, 2020 Ending Balance	$	79,394		$	32,712	$	46,665	$	20,359	$	—	$	179,130

Nine months ended September 30, 2021 and 2020
										Residential
				Real Estate			Commercial			Mortgage Loans			Installment
	Commercial			Construction			Mortgage			and			and Other
	Loans			Loans			Loans			Equity Lines			Loans			Total
	(In thousands)
2021 Beginning Balance	$	68,742		$	30,854		$	49,205		$	17,737		$	—		$	166,538
Impact of ASU 2016-13 adoption		(31,466	)		(24,307	)		34,993			19,211			9			(1,560	)
Allowance for loan losses, January 1, 2021		37,276			6,547			84,198			36,948			9			164,978
Provision/(reversal) for possible credit losses		18,891			(279	)		(23,526	)		(10,788	)		(8	)		(15,710	)
Charge-offs		(19,499	)		—			—			(3	)		—			(19,502	)
Recoveries		1,545			76			284			274			—			2,179
Net (charge-offs)/recoveries		(17,954	)		76			284			271			—			(17,323	)
September 30, 2021 Ending Balance	$	38,213		$	6,344		$	60,956		$	26,431		$	1		$	131,945
Allowance for unfunded credit commitments December 31, 2020	$	4,802		$	690		$	101		$	284		$	3		$	5,880
Impact of ASU 2016-13 adoption		3,236			3,135			(66	)		(284	)		(3	)		6,018
Allowance for loan losses, January 1, 2021		8,038			3,825			35			—			—			11,898
Provision/(reversal) for possible credit losses		(3,321	)		(640	)		163			—			—			(3,798	)
Allowance for unfunded credit commitments September 30, 2021	$	4,717		$	3,185		$	198		$	—		$	—		$	8,100

								Residential
				Real Estate		Commercial		Mortgage Loans		Installment
	Commercial			Construction		Mortgage		and		and Other
	Loans			Loans		Loans		Equity Lines		Loans			Total
	(In thousands)
2020 Beginning Balance	$	57,021		$	19,474	$	33,602	$	13,108	$	19		$	123,224
Provision/(reversal) for possible credit losses		29,402			13,238		12,718		7,161		(19	)		62,500
Charge-offs		(13,383	)		—		—		—		—			(13,383	)
Recoveries		6,354			—		345		90		—			6,789
Net (charge-offs)/recoveries		(7,029	)		—		345		90		—			(6,594	)
September 30, 2020 Ending Balance	$	79,394		$	32,712	$	46,665	$	20,359	$	—		$	179,130
Reserve for impaired loans	$	7,704		$	—	$	582	$	209	$	—		$	8,495
Reserve for non-impaired loans	$	71,690		$	32,712	$	46,083	$	20,150	$	—		$	170,635
Reserve for off-balance sheet credit commitments	$	4,297		$	896	$	172	$	294	$	4		$	5,663

Impairment Method [Member]

Notes Tables

Impaired Financing Receivables [Table Text Block]

	December 31, 2020
			Real Estate		Commercial		Residential		Installment
	Commercial		Construction		Mortgage		Mortgage Loans		and
	Loans		Loans		Loans		and Equity Lines		Other Loans		Total
	(In thousands)
Loans individually evaluated for impairment
Allowance	$	1,030	$	—	$	5,254	$	145	$	—	$	6,429
Balance	$	27,070	$	4,286	$	53,289	$	10,760	$	—	$	95,405
Loans collectively evaluated for impairment
Allowance	$	67,712	$	30,854	$	43,951	$	17,592	$	—	$	160,109
Balance	$	2,809,763	$	675,206	$	7,501,738	$	4,559,184	$	3,100	$	15,548,991
Total allowance	$	68,742	$	30,854	$	49,205	$	17,737	$	—	$	166,538
Total balance	$	2,836,833	$	679,492	$	7,555,027	$	4,569,944	$	3,100	$	15,644,396