Notes Tables

Impaired Financing Receivables [Table Text Block]

	Three Months Ended				Nine Months Ended
	September 30, 2022				September 30, 2022
	Average Recorded Investment		Interest Income Recognized		Average Recorded Investment		Interest Income Recognized
	(In thousands)

Commercial loans	$	26,809	$	—	$	28,691	$	—
Commercial mortgage loans		18,861		191		28,878		508
Residential mortgage loans and equity lines		16,743		7		14,838		20
Installment and other loans		61		—		35		—
Total non-accrual loans	$	62,474	$	198	$	72,442	$	528

	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

Financing Receivable, Past Due [Table Text Block]

	September 30, 2022
	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	$	7,223	$	3,151	$	1,112	$	26,604	$	38,090	$	3,329,347	$	3,367,437
Real estate construction loans		—		—		—		—		—		573,421		573,421
Commercial mortgage loans		—		1,107		2,060		26,911		30,078		8,647,655		8,677,733
Residential mortgage loans and equity lines		3,383		4,690		—		14,601		22,674		5,458,424		5,481,098
Installment and other loans		35		—		—		9		44		7,070		7,114
Total loans	$	10,641	$	8,948	$	3,172	$	68,125	$	90,886	$	18,015,917	$	18,106,803

	December 31, 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)
Type of Loans:
Commercial loans	$	4,294	$	9,877	$	1,439	$	16,558	$	32,168	$	2,950,231	$	2,982,399
Real estate construction loans		—		—		—		—		—		611,031		611,031
Commercial mortgage loans		8,389		—		—		38,173		46,562		8,096,710		8,143,272
Residential mortgage loans and equity lines		20,129		3,138		—		11,115		34,382		4,567,111		4,601,493
Installment and other loans		—		—		—		—		—		4,284		4,284
Total loans	$	32,812	$	13,015	$	1,439	$	65,846	$	113,112	$	16,229,367	$	16,342,479

Financing Receivable, Troubled Debt Restructuring [Table Text Block]

	September 30, 2022
	Payment Deferral		Rate Reduction		Rate Reduction and Payment Deferral		Total
	(In thousands)
Accruing TDRs
Commercial loans	$	2,643	$	—	$	—	$	2,643
Commercial mortgage loans		2,734		—		5,874		8,608
Residential mortgage loans		2,198		459		1,300		3,957
Total accruing TDRs	$	7,575	$	459	$	7,174	$	15,208

	December 31, 2021
	Payment Deferral		Rate Reduction		Rate Reduction and Payment Deferral		Total
	(In thousands)
Accruing TDRs
Commercial loans	$	3,368	$	—	$	—	$	3,368
Commercial mortgage loans		438		5,522		168		6,128
Residential mortgage loans		1,464		249		1,628		3,341
Total accruing TDRs	$	5,270	$	5,771	$	1,796	$	12,837

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, 2022	2022			2021		2020			2019			2018			Prior			Revolving Loans			Revolving Converted to Term Loans			Total
	(In thousands)
Commercial loans
Pass/Watch	$	440,389		$	487,748	$	201,540		$	127,595		$	115,076		$	131,652		$	1,749,754		$	6,429		$	3,260,183
Special Mention		1,212			4,494		2,869			72			2,697			11,418			22,703			250			45,715
Substandard		—			12,324		4,973			6,511			2,852			5,226			25,278			38			57,202
Doubtful		—			—		—			1,088			2,185			—			232			—			3,505
Total	$	441,601		$	504,566	$	209,382		$	135,266		$	122,810		$	148,296		$	1,797,967		$	6,717		$	3,366,605

YTD period charge-offs	$	—		$	134	$	169		$	71		$	1,786		$	—		$	202		$	—		$	2,362
YTD period recoveries		(7	)		—		(31	)		—			(164	)		(202	)		(1,705	)		—			(2,109	)
Net charge-offs/(recoveries)	$	(7	)	$	134	$	138		$	71		$	1,622		$	(202	)	$	(1,503	)	$	—		$	253

Real estate construction loans
Pass/Watch	$	80,633		$	271,855	$	114,015		$	58,922		$	24,650		$	—		$	—		$	—		$	550,075
Special Mention		—			—		8,579			—			—			—			—			—			8,579
Substandard		—			—		—			2,005			9,352			—			—			—			11,357
Total	$	80,633		$	271,855	$	122,594		$	60,927		$	34,002		$	—		$	—		$	—		$	570,011

YTD period charge-offs	$	—		$	—	$	—		$	—		$	—		$	—		$	—		$	—		$	—
YTD period recoveries		—			—		—			—			—			(6	)		—			—			(6	)
Net charge-offs/(recoveries)	$	—		$	—	$	—		$	—		$	—		$	(6	)	$	—		$	—		$	(6	)

Commercial mortgage loans
Pass/Watch	$	1,597,328		$	1,781,573	$	1,084,550		$	1,124,054		$	941,945		$	1,573,895		$	179,343		$	—		$	8,282,688
Special Mention		43,636			51,488		25,686			42,685			18,952			63,473			1,300			—			247,220
Substandard		—			7,269		1,744			12,383			31,933			86,222			3,371			—			142,922
Total	$	1,640,964		$	1,840,330	$	1,111,980		$	1,179,122		$	992,830		$	1,723,590		$	184,014		$	—		$	8,672,830

YTD period charge-offs	$	—		$	—	$	—		$	—		$	—		$	—		$	—		$	—		$	—
YTD period recoveries		—			—		—			(180	)		—			(7	)		(83	)		—			(270	)
Net charge-offs/(recoveries)	$	—		$	—	$	—		$	(180	)	$	—		$	(7	)	$	(83	)	$	—		$	(270	)
Residential mortgage loans
Pass/Watch	$	995,736		$	976,137	$	595,493		$	610,410		$	433,398		$	1,495,370		$	—		$	—		$	5,106,544
Special Mention		—			—		33			1,552			755			911			—			—			3,251
Substandard		8			1,108		2,343			4,897			3,248			10,439			—			—			22,043
Total	$	995,744		$	977,245	$	597,869		$	616,859		$	437,401		$	1,506,720		$	—		$	—		$	5,131,838

YTD period charge-offs	$	—		$	—	$	—		$	—		$	—		$	—		$	58		$	—		$	58
YTD period recoveries		—			—		—			—			—			(45	)		—			—			(45	)
Net charge-offs/(recoveries)	$	—		$	—	$	—		$	—		$	—		$	(45	)	$	58		$	—		$	13

Equity lines
Pass/Watch	$	878		$	—	$	—		$	—		$	—		$	—		$	325,751		$	23,229		$	349,858
Special Mention		28			—		—			—			—			—			—			—			28
Substandard		18			—		—			—			—			—			2,251			236			2,505
Total	$	924		$	—	$	—		$	—		$	—		$	—		$	328,002		$	23,465		$	352,391

YTD period charge-offs	$	—		$	—	$	—		$	—		$	—		$	—		$	—		$	—		$	—
YTD period recoveries		—			—		—			—			—			—			(8	)		(12	)		(20	)
Net charge-offs/(recoveries)	$	—		$	—	$	—		$	—		$	—		$	—		$	(8	)	$	(12	)	$	(20	)

Installment and other loans
Pass/Watch	$	1,246		$	4,848	$	98		$	—		$	—		$	—		$	—		$	—		$	6,192
Total	$	1,246		$	4,848	$	98		$	—		$	—		$	—		$	—		$	—		$	6,192

YTD period charge-offs	$	80		$	—	$	—		$	—		$	—		$	—		$	—		$	—		$	80
YTD period recoveries		(1	)		—		—			—			—			—			—			—			(1	)
Net charge-offs/(recoveries)	$	79		$	—	$	—		$	—		$	—		$	—		$	—		$	—		$	79
Total loans	$	3,161,112		$	3,598,844	$	2,041,923		$	1,992,174		$	1,587,043		$	3,378,606		$	2,309,983		$	30,182		$	18,099,867
Net charge-offs/(recoveries)	$	72		$	134	$	138		$	(109	)	$	1,622		$	(260	)	$	(1,536	)	$	(12	)	$	49

	Loans Amortized Cost Basis by Origination Year
December 31, 2021	2021		2020			2019			2018			2017		Prior			Revolving Loans			Revolving Converted to Term Loans			Total
	(In thousands)
Commercial loans
Pass/Watch	$	606,770	$	268,756		$	183,468		$	142,419		$	80,701	$	100,496		$	1,437,463		$	7,433		$	2,827,506
Special Mention		395		780			1,138			1,645			3,157		—			40,761			49			47,925
Substandard		450		5,879			22,513			16,423			14,309		5,221			34,713			5,716			105,224
Doubtful		—		—			—			—			—		—			900			—			900
Total	$	607,615	$	275,415		$	207,119		$	160,487		$	98,167	$	105,717		$	1,513,837		$	13,198		$	2,981,555

YTD period charge-offs	$	—	$	1,478		$	507		$	366		$	—	$	50		$	17,650		$	—		$	20,051
YTD period recoveries		—		(1	)		(29	)		(124	)		—		(191	)		(1,361	)		—			(1,706	)
Net	$	—	$	1,477		$	478		$	242		$	—	$	(141	)	$	16,289		$	—		$	18,345

Real estate construction loans
Pass/Watch	$	199,188	$	188,782		$	125,316		$	24,548		$	—	$	—		$	—		$	—		$	537,834
Special Mention		—		23,107			27,672			17,374			—		—			—			—			68,153
Substandard		—		—			1,919			—			—		—			—			—			1,919
Total	$	199,188	$	211,889		$	154,907		$	41,922		$	—	$	—		$	—		$	—		$	607,906

YTD period charge-offs	$	—	$	—		$	—		$	—		$	—	$	—		$	—		$	—		$	—
YTD period recoveries		—		—			—			—			—		(76	)		—			—			(76	)
Net	$	—	$	—		$	—		$	—		$	—	$	(76	)	$	—		$	—		$	(76	)

Commercial mortgage loans
Pass/Watch	$	1,893,807	$	1,201,825		$	1,253,548		$	1,031,191		$	727,916	$	1,313,882		$	198,869		$	—		$	7,621,038
Special Mention		45,719		59,182			49,796			103,101			61,105		60,448			750			—			380,101
Substandard		1,110		—			13,483			42,803			1,580		76,906			3,297			—			139,179
Total	$	1,940,636	$	1,261,007		$	1,316,827		$	1,177,095		$	790,601	$	1,451,236		$	202,916		$	—		$	8,140,318

YTD period charge-offs	$	—	$	—		$	—		$	—		$	—	$	—		$	—		$	—		$	—
YTD period recoveries		—		—			(240	)		—			—		(28	)		(111	)		—			(379	)
Net	$	—	$	—		$	(240	)	$	—		$	—	$	(28	)	$	(111	)	$	—		$	(379	)
Residential mortgage loans
Pass/Watch	$	978,375	$	622,999		$	678,775		$	502,325		$	453,992	$	929,846		$	—		$	—		$	4,166,312
Special Mention		—		46			1,576			1,064			836		438			—			—			3,960
Substandard		1,684		147			2,698			2,574			862		5,255			—			—			13,220
Total	$	980,059	$	623,192		$	683,049		$	505,963		$	455,690	$	935,539		$	—		$	—		$	4,183,492

YTD period charge-offs	$	—	$	—		$	—		$	—		$	3	$	—		$	—		$	—		$	3
YTD period recoveries		—		—			—			—			—		(208	)		—			—			(208	)
Net	$	—	$	—		$	—		$	—		$	3	$	(208	)	$	—		$	—		$	(205	)

Equity lines
Pass/Watch	$	—	$	—		$	—		$	—		$	—	$	5		$	389,069		$	30,025		$	419,099
Substandard		—		—			—			—			—		—			1,230			273			1,503
Total	$	—	$	—		$	—		$	—		$	—	$	5		$	390,299		$	30,298		$	420,602

YTD period charge-offs	$	—	$	—		$	—		$	—		$	—	$	—		$	—		$	—		$	—
YTD period recoveries		—		—			—			—			—		—			(10	)		(64	)		(74	)
Net	$	—	$	—		$	—		$	—		$	—	$	—		$	(10	)	$	(64	)	$	(74	)

Installment and other loans
Pass/Watch	$	4,117	$	168		$	—		$	—		$	—	$	—		$	—		$	—		$	4,285
Total	$	4,117	$	168		$	—		$	—		$	—	$	—		$	—		$	—		$	4,285

YTD period charge-offs	$	—	$	—		$	—		$	—		$	—	$	—		$	—		$	—		$	—
YTD period recoveries		—		—			—			—			—		—			—			—			—
Net	$	—	$	—		$	—		$	—		$	—	$	—		$	—		$	—		$	—
Total loans	$	3,731,615	$	2,371,671		$	2,361,902		$	1,885,467		$	1,344,458	$	2,492,497		$	2,107,052		$	43,496		$	16,338,158
Net charge-offs/(recoveries)	$	—	$	1,477		$	238		$	242		$	3	$	(453	)	$	16,168		$	(64	)	$	17,611