Loan Portfolio and Credit Quality (Tables)

6 Months Ended

Jun. 30, 2017

Loans and Leases Receivable Disclosure [Abstract]

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

The following table presents a summary of the loan portfolio by portfolio segment and class of receivable as of the dates indicated:

	June 30, 2017		December 31, 2016
	(In thousands)
Commercial and industrial	$	541,756	$	611,370
Commercial tax exempt	416,157		398,604
Total commercial and industrial	957,913		1,009,974
Commercial real estate	2,356,345		2,302,244
Construction and land	130,904		104,839
Residential	2,525,225		2,379,861
Home equity	108,549		118,817
Consumer and other	200,992		198,619
Total	$	6,279,928	$	6,114,354

Schedule of Financing Receivables, Non Accrual Status [Table Text Block]

The following table presents nonaccrual loans receivable by portfolio segment and class of receivable as of the dates indicated:

	June 30, 2017		December 31, 2016
	(In thousands)
Commercial and industrial	$	697	$	572
Commercial tax exempt	—		—
Total commercial and industrial	697		572
Commercial real estate	3,004		4,583
Construction and land	232		179
Residential	11,173		10,908
Home equity	1,070		1,072
Consumer and other	—		1
Total	$	16,176	$	17,315

Past Due Financing Receivables [Table Text Block]

The following tables show the payment status of loans by class of receivable as of the dates indicated:

	June 30, 2017
	Accruing Past Due						Nonaccrual Loans
	30-59 Days Past Due		60-89 Days Past Due		Total Accruing Past Due		Current		30-89 Days Past Due		90 Days or Greater Past Due		Total Non-Accrual Loans		Current Accruing Loans		Total Loans Receivable
	(In thousands)
Commercial and industrial	$	665	$	—	$	665	$	445	$	78	$	174	$	697	$	540,394	$	541,756
Commercial tax exempt	—		—		—		—		—		—		—		416,157		416,157
Commercial real estate	—		182		182		970		101		1,933		3,004		2,353,159		2,356,345
Construction and land	—		—		—		65		17		150		232		130,672		130,904
Residential	—		1,140		1,140		4,251		233		6,689		11,173		2,512,912		2,525,225
Home equity	90		339		429		—		—		1,070		1,070		107,050		108,549
Consumer and other	747		31		778		—		—		—		—		200,214		200,992
Total	$	1,502	$	1,692	$	3,194	$	5,731	$	429	$	10,016	$	16,176	$	6,260,558	$	6,279,928

	December 31, 2016
	Accruing Past Due						Nonaccrual Loans
	30-59 Days Past Due		60-89 Days Past Due		Total Accruing Past Due		Current		30-89 Days Past Due		90 Days or Greater Past Due		Total Non-Accrual Loans		Current Accruing Loans		Total Loans Receivable
	(In thousands)
Commercial and industrial	$	541	$	1,078	$	1,619	$	537	$	—	$	35	$	572	$	609,179	$	611,370
Commercial tax exempt	—		—		—		—		—		—		—		398,604		398,604
Commercial real estate	3,096		—		3,096		2,311		835		1,437		4,583		2,294,565		2,302,244
Construction and land	—		—		—		129		12		38		179		104,660		104,839
Residential	3,646		536		4,182		2,148		1,274		7,486		10,908		2,364,771		2,379,861
Home equity	245		—		245		—		80		992		1,072		117,500		118,817
Consumer and other	5,995		—		5,995		1		—		—		1		192,623		198,619
Total	$	13,523	$	1,614	$	15,137	$	5,126	$	2,201	$	9,988	$	17,315	$	6,081,902	$	6,114,354

Financing Receivable Credit Quality Indicators [Table Text Block]

The following tables present the loan portfolio’s credit risk profile by internally assigned grade and class of receivable as of the dates indicated:

	June 30, 2017
	By Loan Grade or Nonaccrual Status
	Pass		Special Mention		Accruing Substandard		Nonaccrual Loans		Total
	(In thousands)
Commercial and industrial	$	522,349	$	12,135	$	6,575	$	697	$	541,756
Commercial tax exempt	410,535		5,622		—		—		416,157
Commercial real estate	2,273,184		40,177		39,980		3,004		2,356,345
Construction and land	123,420		4,330		2,922		232		130,904
Residential	2,512,682		—		1,370		11,173		2,525,225
Home equity	107,479		—		—		1,070		108,549
Consumer and other	200,741		—		251		—		200,992
Total	$	6,150,390	$	62,264	$	51,098	$	16,176	$	6,279,928

	December 31, 2016
	By Loan Grade or Nonaccrual Status
	Pass		Special Mention		Accruing Substandard		Nonaccrual Loans		Total
	(In thousands)
Commercial and industrial	$	591,388	$	10,133	$	9,277	$	572	$	611,370
Commercial tax exempt	388,544		10,060		—		—		398,604
Commercial real estate	2,230,732		17,233		49,696		4,583		2,302,244
Construction and land	101,254		109		3,297		179		104,839
Residential	2,367,554		—		1,399		10,908		2,379,861
Home equity	117,745		—		—		1,072		118,817
Consumer and other	198,616		—		2		1		198,619
Total	$	5,995,833	$	37,535	$	63,671	$	17,315	$	6,114,354

Impaired Financing Receivables [Table Text Block]

The following tables present, by class of receivable, the balance of impaired loans with and without a related allowance, the associated allowance for those impaired loans with a related allowance, and the total unpaid principal on impaired loans:

	As of and for the three and six months ended June 30, 2017
	Recorded Investment (1)		Unpaid Principal Balance		Related Allowance		QTD Average Recorded Investment		YTD Average Recorded Investment		QTD Interest Income Recognized while Impaired		YTD Interest Income Recognized while Impaired
	(In thousands)
With no related allowance recorded:
Commercial and industrial	$	1,771	$	2,377	n/a		$	1,667	$	1,703	$	12	$	25
Commercial tax exempt	—		—		n/a		1,084		1,859		80		80
Commercial real estate	2,879		6,429		n/a		3,358		3,824		724		970
Construction and land	232		568		n/a		190		181		—		—
Residential	9,600		9,971		n/a		9,561		8,958		78		179
Home equity	—		—		n/a		—		—		—		—
Consumer and other	—		—		n/a		—		—		—		—
Subtotal	14,482		19,345		n/a		15,860		16,525		894		1,254
With an allowance recorded:
Commercial and industrial	—		—		$	—	—		—		—		—
Commercial tax exempt	—		—		—		—		—		—		—
Commercial real estate	6,996		7,425		453		7,011		7,042		96		171
Construction and land	—		—		—		—		—		—		—
Residential	2,503		2,503		507		2,613		3,312		23		62
Home equity	36		36		21		37		37		—		—
Consumer and other	—		—		—		—		—		—		—
Subtotal	9,535		9,964		981		9,661		10,391		119		233
Total:
Commercial and industrial	1,771		2,377		—		1,667		1,703		12		25
Commercial tax exempt	—		—		—		1,084		1,859		80		80
Commercial real estate	9,875		13,854		453		10,369		10,866		820		1,141
Construction and land	232		568		—		190		181		—		—
Residential	12,103		12,474		507		12,174		12,270		101		241
Home equity	36		36		21		37		37		—		—
Consumer and other	—		—		—		—		—		—		—
Total	$	24,017	$	29,309	$	981	$	25,521	$	26,916	$	1,013	$	1,487

_____________________

(1) Recorded investment represents the client loan balance net of historical charge-offs and historical nonaccrual interest paid, which was applied to principal.

	As of and for the three and six months ended June 30, 2016
	Recorded Investment (1)		Unpaid Principal Balance		Related Allowance		QTD Average Recorded Investment		YTD Average Recorded Investment		QTD Interest Income Recognized while Impaired		YTD Interest Income Recognized while Impaired
	(In thousands)
With no related allowance recorded:
Commercial and industrial	$	8,595	$	10,622	n/a		$	5,668	$	4,107	$	59	$	71
Commercial tax exempt	—		—		n/a		—		—		—		—
Commercial real estate	7,780		14,088		n/a		9,794		10,764		504		542
Construction and land	861		1,793		n/a		2,337		1,797		—		—
Residential	7,653		8,013		n/a		7,565		7,389		57		114
Home equity	—		—		n/a		—		—		—		—
Consumer and other	—		—		n/a		—		—		—		—
Subtotal	24,889		34,516		n/a		25,364		24,057		620		727
With an allowance recorded:
Commercial and industrial	37		37		$	22	44		31		—		1
Commercial tax exempt	—		—		—		—		—		—		—
Commercial real estate	7,233		7,662		640		7,266		7,294		78		158
Construction and land	—		—		—		—		943		—		—
Residential	5,682		5,682		439		5,630		5,958		36		79
Home equity	—		—		—		—		—		—		—
Consumer and other	—		—		—		—		—		—		—
Subtotal	12,952		13,381		1,101		12,940		14,226		114		238
Total:
Commercial and industrial	8,632		10,659		22		5,712		4,138		59		72
Commercial tax exempt	—		—		—		—		—		—		—
Commercial real estate	15,013		21,750		640		17,060		18,058		582		700
Construction and land	861		1,793		—		2,337		2,740		—		—
Residential	13,335		13,695		439		13,195		13,347		93		193
Home equity	—		—		—		—		—		—		—
Consumer and other	—		—		—		—		—		—		—
Total	$	37,841	$	47,897	$	1,101	$	38,304	$	38,283	$	734	$	965

_____________________

(1) Recorded investment represents the client loan balance net of historical charge-offs and historical nonaccrual interest paid, which was applied to principal.

	As of and for the year ended December 31, 2016
	Recorded Investment (1)		Unpaid Principal Balance		Related Allowance		Average Recorded Investment		Interest Income Recognized while Impaired
	(In thousands)
With no related allowance recorded:
Commercial and industrial	$	1,793	$	2,155	n/a		$	5,288	$	249
Commercial tax exempt	—		—		n/a		—		—
Commercial real estate	4,488		9,647		n/a		8,520		1,032
Construction and land	179		507		n/a		1,069		48
Residential	8,134		8,506		n/a		7,446		211
Home equity	—		—		n/a		—		—
Consumer and other	—		—		n/a		—		—
Subtotal	14,594		20,815		n/a		22,323		1,540
With an allowance recorded:
Commercial and industrial	—		—		$	—	31		1
Commercial tax exempt	—		—		—		—		—
Commercial real estate	7,115		7,544		548		7,230		314
Construction and land	—		—		—		507		—
Residential	4,284		4,284		565		5,505		143
Home equity	37		37		22		3		—
Consumer and other	—		—		—		—		—
Subtotal	11,436		11,865		1,135		13,276		458
Total:
Commercial and industrial	1,793		2,155		—		5,319		250
Commercial tax exempt	—		—		—		—		—
Commercial real estate	11,603		17,191		548		15,750		1,346
Construction and land	179		507		—		1,576		48
Residential	12,418		12,790		565		12,951		354
Home equity	37		37		22		3		—
Consumer and other	—		—		—		—		—
Total	$	26,030	$	32,680	$	1,135	$	35,599	$	1,998

_____________________

(1) Recorded investment represents the client loan balance net of historical charge-offs and historical nonaccrual interest paid, which was applied to principal.

The following tables present the Company’s allowance for loan losses and loan portfolio at June 30, 2017 and December 31, 2016 by portfolio segment, disaggregated by method of impairment analysis. The Company had no loans acquired with deteriorated credit quality at June 30, 2017 or December 31, 2016.

	June 30, 2017
	Individually Evaluated for Impairment				Collectively Evaluated for Impairment				Total
	Recorded investment (loan balance)		Allowance for loan losses		Recorded investment (loan balance)		Allowance for loan losses		Recorded investment (loan balance)		Allowance for loan losses
	(In thousands)
Commercial and industrial	$	1,771	$	—	$	956,142	$	11,672	$	957,913	$	11,672
Commercial real estate	9,875		453		2,346,470		47,683		2,356,345		48,136
Construction and land	232		—		130,672		3,585		130,904		3,585
Residential	12,103		507		2,513,122		9,775		2,525,225		10,282
Home equity	36		21		108,513		908		108,549		929
Consumer	—		—		200,992		405		200,992		405
Total	$	24,017	$	981	$	6,255,911	$	74,028	$	6,279,928	$	75,009

	December 31, 2016
	Individually Evaluated for Impairment				Collectively Evaluated for Impairment				Total
	Recorded investment (loan balance)		Allowance for loan losses		Recorded investment (loan balance)		Allowance for loan losses		Recorded investment (loan balance)		Allowance for loan losses
	(In thousands)
Commercial and industrial	$	1,793	$	—	$	1,008,181	$	12,751	$	1,009,974	$	12,751
Commercial real estate	11,603		548		2,290,641		49,864		2,302,244		50,412
Construction and land	179		—		104,660		3,039		104,839		3,039
Residential	12,418		565		2,367,443		9,884		2,379,861		10,449
Home equity	37		22		118,780		1,013		118,817		1,035
Consumer	—		—		198,619		391		198,619		391
Total	$	26,030	$	1,135	$	6,088,324	$	76,942	$	6,114,354	$	78,077

Troubled Debt Restructurings on Financing Receivables [Table Text Block]

There were no loans that were restructured or defaulted as of and during the three and six months ended June 30, 2017. The following tables present the balance of TDRs that were restructured or defaulted during the periods indicated and the types of concessions granted:

	As of and for the three months ended June 30, 2016
	Restructured in the current quarter					TDRs that defaulted that were restructured in prior twelve months
	# of Loans	Pre- modification recorded investment		Post- modification recorded investment		# of Loans	Post- modification recorded investment
	(Dollars in thousands)
Commercial and industrial	2	$	7,209	$	7,209	—	$	—
Commercial tax exempt	—	—		—		—	—
Commercial real estate	1	1,276		1,276		—	—
Construction and land	—	—		—		—	—
Residential	1	115		116		—	—
Home equity	—	—		—		—	—
Consumer and other	—	—		—		—	—
Total	4	$	8,600	$	8,601	—	$	—

	As of and for the three months ended June 30, 2016
	Extension of term			Temporary rate reduction			Payment deferral			Combination of concessions (1)			Total concessions
	# of Loans	Post- modifi- cation recorded invest- ment		# of Loans	Post- modifi- cation recorded invest- ment		# of Loans	Post- modifi- cation recorded invest- ment		# of Loans	Post- modifi- cation recorded invest- ment		# of Loans	Post- modifi- cation recorded invest- ment
	(Dollars in thousands)
Commercial and industrial	2	$	7,209	—	$	—	—	$	—	—	$	—	2	$	7,209
Commercial tax exempt	—	—		—	—		—	—		—	—		—	—
Commercial real estate	—	—		—	—		—	—		1	1,276		1	1,276
Construction and land	—	—		—	—		—	—		—	—		—	—
Residential	—	—		1	116		—	—		—	—		1	116
Home equity	—	—		—	—		—	—		—	—		—	—
Consumer and other	—	—		—	—		—	—		—	—		—	—

_____________________

(1) Combination of concessions includes loans that have had more than one modification, including extension of term, temporary reduction of interest rate, and/or payment deferral.

	As of and for the six months ended June 30, 2016
	Restructured in the current quarter					TDRs that defaulted that were restructured in prior twelve months
	# of Loans	Pre- modification recorded investment		Post- modification recorded investment		# of Loans	Post- modification recorded investment
	(Dollars in thousands)
Commercial and industrial	3	$	7,384	$	7,209	—	$	—
Commercial tax exempt	—	—		—		—	—
Commercial real estate	1	1,276		1,276		—	—
Construction and land	—	—		—		—	—
Residential	2	260		261		—	—
Home equity	—	—		—		—	—
Consumer and other	—	—		—		—	—
Total	6	$	8,920	$	8,746	—	$	—

	As of and for the six months ended June 30, 2016
	Extension of term			Temporary rate reduction			Payment deferral			Combination of concessions (1)			Total concessions
	# of Loans	Post- modifi- cation recorded invest- ment		# of Loans	Post- modifi- cation recorded invest- ment		# of Loans	Post- modifi- cation recorded invest- ment		# of Loans	Post- modifi- cation recorded invest- ment		# of Loans	Post- modifi- cation recorded invest- ment
	(Dollars in thousands)
Commercial and industrial	2	$	7,209	—	$	—	—	$	—	1	$	—	3	$	7,209
Commercial tax exempt	—	—		—	—		—	—		—	—		—	—
Commercial real estate	—	—		—	—		—	—		1	1,276		1	1,276
Construction and land	—	—		—	—		—	—		—	—		—	—
Residential	—	—		2	261		—	—		—	—		2	261
Home equity	—	—		—	—		—	—		—	—		—	—
Consumer and other	—	—		—	—		—	—		—	—		—	—

_____________________

(1) Combination of concessions includes loans that have had more than one modification, including extension of term, temporary reduction of interest rate, and/or payment deferral.