Note 4 - Loans (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

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

	As of December 31,
	2019			2018
	(In thousands)
Type of Loans:
Commercial loans	$	2,778,744		$	2,741,965
Real estate construction loans		579,864			581,454
Commercial mortgage loans		7,275,262			6,724,200
Residential mortgage loans		4,088,586			3,693,853
Equity lines		347,975			249,967
Installment and other loans		5,050			4,349
Gross loans		15,075,481			13,995,788
Less:
Allowance for loan losses		(123,224	)		(122,391	)
Unamortized deferred loan fees		(626	)		(1,565	)
Total loans and leases, net	$	14,951,631		$	13,871,832

Schedule of Related Party Transactions [Table Text Block]

	December 31,
	2019			2018
	(In thousands)
Balance at beginning of year	$	47,263		$	66,593
Additional loans made		19,036			18,580
Payment received		(22,347	)		(37,910	)
Balance at end of year	$	43,952		$	47,263

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

	Impaired Loans
	As of December 31, 2019						As of December 31, 2018
	Unpaid Principal Balance		Recorded Investment		Allowance		Unpaid Principal Balance		Recorded Investment		Allowance
	(In thousands)
With no allocated allowance
Commercial loans	$	20,134	$	15,857	$	—	$	32,015	$	30,368	$	—
Real estate construction loans		5,776		4,580		—		5,776		4,873		—
Commercial mortgage loans		9,234		9,030		—		34,129		24,409		—
Residential mortgage and equity lines		6,171		6,073		—		5,685		5,665		—
Subtotal	$	41,315	$	35,540	$	—	$	77,605	$	65,315	$	—
With allocated allowance
Commercial loans	$	8,769	$	8,739	$	2,543	$	6,653	$	6,570	$	1,837
Commercial mortgage loans		26,117		26,040		473		27,099		27,063		877
Residential mortgage and equity lines		6,740		5,540		220		8,934		7,938		1,088
Subtotal	$	41,626	$	40,319	$	3,236	$	42,686	$	41,571	$	3,802
Total impaired loans	$	82,941	$	75,859	$	3,236	$	120,291	$	106,886	$	3,802

Impaired Financing Receivables [Table Text Block]

	For the year ended December 31,
	2019		2018		2017		2019		2018		2017
	Average Recorded Investment						Interest Income Recognized
	(In thousands)
Commercial loans	$	37,475	$	44,486	$	26,957	$	412	$	685	$	1,303
Real estate construction loans		4,697		6,835		26,695		—		—		—
Commercial mortgage loans		47,612		57,596		58,635		1,366		2,125		1,618
Residential mortgage and equity lines		12,799		13,679		14,780		306		356		381
Subtotal	$	102,583	$	122,596	$	127,067	$	2,084	$	3,166	$	3,302

Financing Receivable, Nonaccrual [Table Text Block]

	2019		2018		2017
	(In thousands)
Non-accrual portfolio loans	$	40,523	$	41,815	$	48,787
Non-accrual loans held-for-sale		—		—		8,000
Total non-accrual loans	$	40,523	$	41,815	$	56,787
Contractual interest due	$	1,775	$	1,618	$	3,254
Interest recognized		85		66		86
Net interest foregone	$	1,690	$	1,552	$	3,168

Financing Receivable, Past Due [Table Text Block]

	As of December 31, 2019
	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)
Type of Loans:
Commercial loans	$	24,681	$	9,954	$	6,409	$	19,381	$	60,425	$	2,718,319	$	2,778,744
Real estate construction loans		5,846		6,753		—		4,580		17,179		562,685		579,864
Commercial mortgage loans		7,694		2,609		—		9,928		20,231		7,255,031		7,275,262
Residential mortgage loans		26,028		965		—		6,634		33,627		4,402,934		4,436,561
Installment and other loans		—		—		—		—		—		5,050		5,050
Total loans	$	64,249	$	20,281	$	6,409	$	40,523	$	131,462	$	14,944,019	$	15,075,481

	As of December 31, 2018
	30-59 Days Past Due		60-89 Days Pas t Due		90 Days or More Past Due		Non-accrual Loans		Total Past Due		Loans Not Past Due		Total
	(In thousands)
Type of Loans:
Commercial loans	$	25,494	$	2,454	$	514	$	18,805	$	47,267	$	2,694,698	$	2,741,965
Real estate construction loans		—		3,156		—		4,872		8,028		573,426		581,454
Commercial mortgage loans		10,797		8,545		3,259		10,611		33,212		6,690,988		6,724,200
Residential mortgage loans		9,687		336		—		7,527		17,550		3,926,270		3,943,820
Installment and other loans		—		—		—		—		—		4,349		4,349
Total loans	$	45,978	$	14,491	$	3,773	$	41,815	$	106,057	$	13,889,731	$	13,995,788

Schedule Of Troubled Debt Restructurings [Table Text Block]

	No. of Contracts		Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment		Specific Reserve		Charge-offs
	(Dollars in thousands)
Commercial loans		23	$	25,937	$	21,874	$	2,190	$	4,063
Residential mortgage and equity lines		1		42		42		—		—
Total		24	$	25,979	$	21,916	$	2,190	$	4,063

	No. of Contracts		Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment		Specific Reserve		Charge-offs
	(Dollars in thousands)
Commercial loans		23	$	13,290	$	13,290	$	1,384	$	—
Commercial mortgage loans		7		14,626		14,626		111		—
Residential mortgage and equity lines		4		1,214		1,214		23		—
Total		34	$	29,130	$	29,130	$	1,518	$	—

	No. of Contracts		Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment		Specific Reserve		Charge-off
	(Dollars in thousands)
Commercial loans		16	$	29,590	$	29,590	$	7	$	—
Real estate construction loans		2		27,683		27,683		—		—
Commercial mortgage loans		9		19,380		19,075		1,496		305
Residential mortgage and equity lines		4		1,088		1,088		53		—
Total		31	$	77,741	$	77,436	$	1,556	$	305

Financing Receivable, Troubled Debt Restructuring [Table Text Block]

	December 31, 2019
Accruing TDRs	Payment Deferral		Rate Reduction		Rate Reduction and Payment Deferral		Total
	(In thousands)
Commercial loans	$	5,215	$	—	$	—	$	5,215
Commercial mortgage loans		615		5,748		18,779		25,142
Residential mortgage loans		2,525		311		2,143		4,979
Total accruing TDRs	$	8,355	$	6,059	$	20,922	$	35,336

	December 31, 2018
Accruing TDRs	Payment Deferral		Rate Reduction		Rate Reduction and Payment Deferral		Total
	(In thousands)
Commercial loans	$	18,135	$	—	$	—	$	18,135
Commercial mortgage loans		14,022		7,420		19,418		40,860
Residential mortgage loans		3,353		327		2,396		6,076
Total accruing TDRs	$	35,510	$	7,747	$	21,814	$	65,071

Non Accrual Troubled Debt Restructurings [Table Text Block]

	December 31, 2019
Non-accrual TDRs	Payment Deferral		Rate Reduction		Rate Reduction and Payment Deferral		Total
	(In thousands)
Commercial loans	$	16,692	$	—	$	—	$	16,692
Residential mortgage loans		1,220		—		136		1,356
Total non-accrual TDRs	$	17,912	$	—	$	136	$	18,048

	December 31, 2018
Non-accrual TDRs	Payment Deferral		Rate Reduction		Rate Reduction and Payment Deferral		Total
	(In thousands)
Commercial loans	$	13,771	$	—	$	—	$	13,771
Commercial mortgage loans		3,682		—		4,884		8,566
Residential mortgage loans		1,741		—		111		1,852
Total non-accrual TDRs	$	19,194	$	—	$	4,995	$	24,189

Activity Within The Troubled Debt Resturings [Table Text Block]

Accruing TDRs	2019			2018			2017
	(In thousands)
Beginning balance	$	65,071		$	68,565		$	65,393
New restructurings		15,432			26,114			73,426
Restructured loans restored to accrual status		365			2,896			—
Charge-offs		(1,341	)		—			—
Payments		(42,895	)		(30,406	)		(54,095	)
Restructured loans placed on non-accrual		(1,296	)		(2,098	)		(13,919	)
Expiration of loan concession		—			—			(2,240	)
Ending balance	$	35,336		$	65,071		$	68,565

Non-accrual TDRs	2019			2018			2017
	(In thousands)
Beginning balance	$	24,189		$	33,416		$	29,722
New restructurings		10,547			3,015			4,009
Restructured loans placed on non-accrual		1,296			2,098			13,919
Charge-offs		(3,607	)		(2,347	)		(1,650	)
Payments		(14,012	)		(9,097	)		(11,341	)
Foreclosures		—			—			(1,243	)
Restructured loans restored to accrual status		(365	)		(2,896	)		—
Ending balance	$	18,048		$	24,189		$	33,416

Financing Receivable Credit Quality Indicators [Table Text Block]

	As of December 31, 2019
	Pass/Watch		Special Mention		Substandard		Doubtful		Total
	(In thousands)
Commercial loans	$	2,528,944	$	166,016	$	83,784	$	—	$	2,778,744
Real estate construction loans		461,597		113,687		4,580		—		579,864
Commercial mortgage loans		6,992,933		196,454		85,875		—		7,275,262
Residential mortgage and equity lines		4,427,205		914		8,442		—		4,436,561
Installment and other loans		5,050		—		—		—		5,050
Total gross loans	$	14,415,729	$	477,071	$	182,681	$	—	$	15,075,481

	As of December 31, 2018
	Pass/Watch		Special Mention		Substandard		Doubtful		Total
	(In thousands)
Commercial loans	$	2,603,901	$	87,987	$	50,077	$	—	$	2,741,965
Real estate construction loans		514,406		62,175		4,873		—		581,454
Commercial mortgage loans		6,337,368		304,791		82,041		—		6,724,200
Residential mortgage and equity lines		3,934,762		—		9,058		—		3,943,820
Installment and other loans		4,349		—		—		—		4,349
Total gross loans	$	13,394,786	$	454,953	$	146,049	$	—	$	13,995,788

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

				Real Estate			Commercial			Residential			Installment
	Commercial			Construction			Mortgage			Mortgage			and Other
	Loans			Loans			Loans			and Equity Lines			Loans			Total
	(In thousands)
2018 Beginning Balance	$	49,796		$	24,838		$	37,610		$	11,013		$	22		$	123,279
Provision/(reversal) for loan losses		3,936			(5,389	)		(6,289	)		3,246			(4	)		(4,500	)
Charge-offs		(629	)		—			(2,348	)		(229	)		—			(3,206	)
Recoveries		1,875			177			4,514			252			—			6,818
Net Recoveries		1,246			177			2,166			23			—			3,612
2018 Ending Balance	$	54,978		$	19,626		$	33,487		$	14,282		$	18		$	122,391
Reserve for impaired loans	$	1,837		$	—		$	877		$	1,088		$	—		$	3,802
Reserve for non-impaired loans	$	53,141		$	19,626		$	32,610		$	13,194		$	18		$	118,589
Reserve for off-balance sheet credit commitments	$	1,161		$	745		$	95		$	246		$	3		$	2,250
2019 Beginning Balance	$	54,978		$	19,626		$	33,487		$	14,282		$	18		$	122,391
Provision/(reversal) for loan losses		4,885			(4,764	)		(5,216	)		(1,906	)		1			(7,000	)
Charge-offs		(6,997	)		—			—			—			—			(6,997	)
Recoveries		4,155			4,612			5,331			732			—			14,830
Net (Charge-offs)/Recoveries		(2,842	)		4,612			5,331			732			—			7,833
2019 Ending Balance	$	57,021		$	19,474		$	33,602		$	13,108		$	19		$	123,224
Reserve for impaired loans	$	2,543		$	—		$	473		$	220		$	—		$	3,236
Reserve for non-impaired loans	$	54,478		$	19,474		$	33,129		$	12,888		$	19		$	119,988
Reserve for off-balance sheet credit commitments	$	2,301		$	1,047		$	193		$	311		$	3		$	3,855

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

	For the year ended December 31,
	2019			2018			2017
	(In thousands)
Allowance for Loan Losses
Balance at beginning of year	$	122,391		$	123,279		$	118,966
Reversal for credit losses		(7,000	)		(4,500	)		(2,500	)
Loans charged off		(6,997	)		(3,206	)		(4,173	)
Recoveries of charged off loans		14,830			6,818			10,986
Balance at end of year	$	123,224		$	122,391		$	123,279
Reserve for Off-balance Sheet Credit Commitments
Balance at beginning of year	$	2,250		$	4,588		$	3,224
Provision/(reversal) for credit losses and transfers		1,605			(2,338	)		1,364
Balance at end of year	$	3,855		$	2,250		$	4,588

Impairment Method [Member]

Notes Tables

Impaired Financing Receivables [Table Text Block]

			Real Estate		Commercial		Residential
	Commercial		Construction		Mortgage		Mortgage		Consumer
	Loans		Loans		Loans		and Equity Lines		and Other		Total
	(In thousands)
December 31, 2019
Loans individually evaluated for impairment
Allowance	$	2,543	$	—	$	473	$	220	$	—	$	3,236
Balance	$	24,596	$	4,580	$	35,070	$	11,613	$	—	$	75,859
Loans collectively evaluated for impairment
Allowance	$	54,478	$	19,474	$	33,129	$	12,888	$	19	$	119,988
Balance	$	2,754,148	$	575,284	$	7,240,192	$	4,424,948	$	5,050	$	14,999,622
Total allowance	$	57,021	$	19,474	$	33,602	$	13,108	$	19	$	123,224
Total balance	$	2,778,744	$	579,864	$	7,275,262	$	4,436,561	$	5,050	$	15,075,481
December 31, 2018
Loans individually evaluated for impairment
Allowance	$	1,837	$	—	$	877	$	1,088	$	—	$	3,802
Balance	$	36,940	$	4,873	$	51,471	$	13,602	$	—	$	106,886
Loans collectively evaluated for impairment
Allowance	$	53,141	$	19,626	$	32,610	$	13,194	$	18	$	118,589
Balance	$	2,705,025	$	576,581	$	6,672,729	$	3,930,218	$	4,349	$	13,888,902
Total allowance	$	54,978	$	19,626	$	33,487	$	14,282	$	18	$	122,391
Total balance	$	2,741,965	$	581,454	$	6,724,200	$	3,943,820	$	4,349	$	13,995,788