Allowance for Loan Losses (Tables)

3 Months Ended

Mar. 31, 2019

Receivables [Abstract]

Schedule of Age Analysis of Past Due Loans Segregated by Class of Loans

The following tables present the age analysis of past due loans segregated by class of loans as of the dates presented:

	March 31, 2019
(dollars in thousands)	Current		30-59 Days Past Due		60-89 Days Past Due		Non - performing		Total Past Due Loans		Total Loans
Commercial real estate	$	2,868,403	$	1,876	$	2,237	$	29,109	$	33,222	$	2,901,625
Commercial and industrial	1,504,824		785		588		6,810		8,183		1,513,007
Commercial construction	244,432		—		—		1,226		1,226		245,658
Residential mortgage	719,422		3,695		167		6,630		10,492		729,914
Home equity	457,452		1,714		254		4,146		6,114		463,566
Installment and other consumer	70,645		227		59		29		315		70,960
Consumer construction	10,500		222		—		—		222		10,722
Loans held for sale	2,706		—		—		—		—		2,706
Total	$	5,878,384	$	8,519	$	3,305	$	47,950	$	59,774	$	5,938,158

	December 31, 2018
(dollars in thousands)	Current		30-59 Days Past Due		60-89 Days Past Due		Non - performing		Total Past Due Loans		Total Loans
Commercial real estate	$	2,903,997	$	3,638	$	2,145	$	12,052	$	17,835	$	2,921,832
Commercial and industrial	1,482,473		1,000		983		8,960		10,943		1,493,416
Commercial construction	243,004		—		—		14,193		14,193		257,197
Residential mortgage	717,447		1,584		520		7,128		9,232		726,679
Home equity	465,152		2,103		609		3,698		6,410		471,562
Installment and other consumer	67,281		148		75		42		265		67,546
Consumer construction	8,416		—		—		—		—		8,416
Loans held for sale	2,371		—		—		—		—		2,371
Total	$	5,890,141	$	8,473	$	4,332	$	46,073	$	58,878	$	5,949,019

Schedule of Recorded Investment in Commercial Loan Classes by Internally Assigned Risk Ratings

The following tables present the recorded investment in commercial loan classes by internally assigned risk ratings as of the dates presented:

	March 31, 2019
(dollars in thousands)	Commercial Real Estate		% of Total		Commercial and Industrial		% of Total		Commercial Construction		% of Total		Total		% of Total
Pass	$	2,745,156	94.6	%	$	1,427,120	94.3	%	$	234,717	95.5	%	$	4,406,993	94.6	%
Special mention	56,829		2.0	%	23,945		1.6	%	7,263		3.0	%	88,037		1.9	%
Substandard	99,640		3.4	%	61,942		4.1	%	3,678		1.5	%	165,260		3.5	%
Total	$	2,901,625	100.0	%	$	1,513,007	100.0	%	$	245,658	100.0	%	$	4,660,290	100.0	%
	December 31, 2018
(dollars in thousands)	Commercial Real Estate		% of Total		Commercial and Industrial		% of Total		Commercial Construction		% of Total		Total		% of Total
Pass	$	2,776,292	95.0	%	$	1,394,427	93.4	%	$	233,190	90.7	%	$	4,403,909	94.3	%
Special mention	54,627		1.9	%	25,368		1.7	%	7,349		2.8	%	87,344		1.8	%
Substandard	90,913		3.1	%	73,621		4.9	%	16,658		6.5	%	181,192		3.9	%
Total	$	2,921,832	100.0	%	$	1,493,416	100.0	%	$	257,197	100.0	%	$	4,672,445	100.0	%

Schedule of Recorded Investment in Consumer Loan Classes by Performing and Nonperforming Status

The following tables present the recorded investment in consumer loan classes by performing and nonperforming status as of the dates presented:

	March 31, 2019
(dollars in thousands)	Residential Mortgage		% of Total		Home Equity		% of Total		Installment and Other Consumer		% of Total		Consumer Construction		% of Total		Total		% of Total
Performing	$	723,284	99.1	%	$	459,420	99.1	%	$	70,931	100.0	%	$	10,722	100.0	%	$	1,264,357	99.2	%
Nonperforming	6,630		0.9	%	4,146		0.9	%	29		—	%	—		—	%	10,805		0.8	%
Total	$	729,914	100.0	%	$	463,566	100.0	%	$	70,960	100.0	%	$	10,722	100.0	%	$	1,275,162	100.0	%
	December 31, 2018
(dollars in thousands)	Residential Mortgage		% of Total		Home Equity		% of Total		Installment and Other Consumer		% of Total		Consumer Construction		% of Total		Total		% of Total
Performing	$	719,551	99.0	%	$	467,864	99.2	%	$	67,504	99.9	%	$	8,416	100.0	%	$	1,263,335	99.1	%
Nonperforming	7,128		1.0	%	3,698		0.8	%	42		0.1	%	—		—	%	10,868		0.9	%
Total	$	726,679	100.0	%	$	471,562	100.0	%	$	67,546	100.0	%	$	8,416	100.0	%	$	1,274,203	100.0	%

Schedule of Investments in Loans Considered to be Impaired and Related Information on Impaired Loans

The following tables summarize average recorded investment in and interest income recognized on loans considered to be impaired for the periods presented:

	Three Months Ended
	March 31, 2019				March 31, 2018
(dollars in thousands)	Average Recorded Investment		Interest Income Recognized		Average Recorded Investment		Interest Income Recognized
With a related allowance recorded:
Commercial real estate	$	12,983	$	400	$	—	$	—
Commercial and industrial	980		35		586		11
Commercial construction	489		—		—		—
Consumer real estate	14		1		—		—
Other consumer	10		1		42		1
Total with a Related Allowance Recorded	14,476		437		628		12
Without a related allowance recorded:
Commercial real estate	15,107		144		3,817		43
Commercial and industrial	12,780		209		6,688		110
Commercial construction	2,319		140		3,446		36
Consumer real estate	8,846		417		10,816		138
Other consumer	4		—		12		—
Total without a Related Allowance Recorded	39,056		910		24,779		327
Total:
Commercial real estate	28,090		544		3,817		43
Commercial and industrial	13,760		244		7,274		121
Commercial construction	2,808		140		3,446		36
Consumer real estate	8,860		418		10,816		138
Other consumer	14		1		54		1
Total	$	53,532	$	1,347	$	25,407	$	339

The following table summarizes investments in loans considered to be impaired and related information on those impaired loans as of the dates presented:

	March 31, 2019						December 31, 2018
(dollars in thousands)	Recorded Investment		Unpaid Principal Balance		Related Allowance		Recorded Investment		Unpaid Principal Balance		Related Allowance
With a related allowance recorded:
Commercial real estate	$	12,965	$	12,965	$	2,046	$	7,733	$	7,733	$	1,295
Commercial and industrial	976		984		873		884		893		360
Commercial construction	489		490		87		489		489		87
Consumer real estate	14		14		9		15		14		10
Other consumer	8		8		8		11		12		11
Total with a Related Allowance Recorded	14,452		14,461		3,023		9,132		9,141		1,763
Without a related allowance recorded:
Commercial real estate	15,068		17,895		—		3,636		4,046		—
Commercial and industrial	15,934		22,551		—		12,788		14,452		—
Commercial construction	2,319		3,828		—		15,286		19,198		—
Consumer real estate	8,527		9,507		—		8,659		9,635		—
Other consumer	4		10		—		5		18		—
Total without a Related Allowance Recorded	41,852		53,792		—		40,374		47,349		—
Total:
Commercial real estate	28,033		30,860		2,046		11,369		11,779		1,295
Commercial and industrial	16,910		23,535		873		13,672		15,345		360
Commercial construction	2,808		4,318		87		15,775		19,687		87
Consumer real estate	8,541		9,521		9		8,674		9,649		10
Other consumer	12		18		8		16		30		11
Total	$	56,304	$	68,252	$	3,023	$	49,506	$	56,490	$	1,763

Schedule of Summary of Allowance for Loan Losses

The following tables detail activity in the ALL for the periods presented:

	Three Months Ended March 31, 2019
(dollars in thousands)	Commercial Real Estate			Commercial and Industrial			Commercial Construction			Consumer Real Estate			Other Consumer			Total Loans
Balance at beginning of period	$	33,707		$	11,596		$	7,983		$	6,187		$	1,523		$	60,996
Charge-offs	(1		)	(5,477		)	—			(162		)	(383		)	(6,023		)
Recoveries	122			417			—			148			100			787
Net Recoveries/(Charge-offs)	121			(5,060		)	—			(14		)	(283		)	(5,236		)
Provision for loan losses	1,075			5,460			(1,226		)	5			335			5,649
Balance at End of Period	$	34,903		$	11,996		$	6,757		$	6,178		$	1,575		$	61,409
	Three Months Ended March 31, 2018
(dollars in thousands)	Commercial Real Estate			Commercial and Industrial			Commercial Construction			Consumer Real Estate			Other Consumer			Total Loans
Balance at beginning of period	$	27,235		$	8,966		$	13,167		$	5,479		$	1,543		$	56,390
Charge-offs	—			(829		)	—			(161		)	(460		)	(1,450		)
Recoveries	49			117			1,129			238			101			1,634
Net Recoveries/(Charge-offs)	49			(712		)	1,129			77			(359		)	184
Provision for loan losses	3,679			2,218			(3,575		)	(138		)	288			2,472
Balance at End of Period	$	30,963		$	10,472		$	10,721		$	5,418		$	1,472		$	59,046

Schedule of Summary of Allowance for Loan Losses and Recorded Investments

The following tables present the ALL and recorded investments in loans by category as of the periods presented:

	March 31, 2019
	Allowance for Loan Losses						Portfolio Loans
(dollars in thousands)	Individually Evaluated for Impairment		Collectively Evaluated for Impairment		Total		Individually Evaluated for Impairment		Collectively Evaluated for Impairment		Total
Commercial real estate	$	2,046	$	32,857	$	34,903	$	28,033	$	2,873,592	$	2,901,625
Commercial and industrial	873		11,123		11,996		16,910		1,496,097		1,513,007
Commercial construction	87		6,670		6,757		2,808		242,850		245,658
Consumer real estate	9		6,169		6,178		8,541		1,195,661		1,204,202
Other consumer	8		1,567		1,575		12		70,948		70,960
Total	$	3,023	$	58,386	$	61,409	$	56,304	$	5,879,148	$	5,935,452
	December 31, 2018
	Allowance for Loan Losses						Portfolio Loans
(dollars in thousands)	Individually Evaluated for Impairment		Collectively Evaluated for Impairment		Total		Individually Evaluated for Impairment		Collectively Evaluated for Impairment		Total
Commercial real estate	$	1,295	$	32,412	$	33,707	$	11,369	$	2,910,463	$	2,921,832
Commercial and industrial	360		11,236		11,596		13,672		1,479,744		1,493,416
Commercial construction	87		7,896		7,983		15,775		241,422		257,197
Consumer real estate	10		6,177		6,187		8,674		1,197,983		1,206,657
Other consumer	11		1,512		1,523		16		67,530		67,546
Total	$	1,763	$	59,233	$	60,996	$	49,506	$	5,897,142	$	5,946,648