Nature of Operations and Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2021

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Provision for Credit Losses

The following table presents the provision for credit losses on the loan portfolio and off-balance sheet exposures:

	Three Months ended			Nine Months ended
(Dollars in thousands)	September 30, 2021		September 30, 2020	September 30, 2021	September 30, 2020
Provision for credit loss loans	$	2,313	2,869	(2,921)	39,165
Provision for credit losses unfunded	(1,588)		2,317	(1,959)	2,135
Total provision for credit losses	$	725	5,186	(4,880)	41,300

The following tables summarize the activity in the ACL:

	Three Months ended September 30, 2021
(Dollars in thousands)	Total		Residential Real Estate	Commercial Real Estate	Other Commercial	Home Equity	Other Consumer
Balance at beginning of period	$	151,448	10,143	96,597	31,983	7,837	4,888
Provision for credit losses	2,313		1,703	2,931	(3,321)	(124)	1,124
Charge-offs	(2,620)		—	(162)	(677)	—	(1,781)
Recoveries	2,468		13	672	860	152	771
Balance at end of period	$	153,609	11,859	100,038	28,845	7,865	5,002

	Three Months ended September 30, 2020
(Dollars in thousands)	Total		Residential Real Estate	Commercial Real Estate	Other Commercial	Home Equity	Other Consumer
Balance at beginning of period	$	162,509	9,986	89,104	48,838	9,962	4,619
Provision for credit losses	2,869		(216)	5,208	1,199	(2,526)	(796)
Charge-offs	(2,630)		—	(445)	(1,598)	(99)	(488)
Recoveries	1,804		35	530	314	93	832
Balance at end of period	$	164,552	9,805	94,397	48,753	7,430	4,167

	Nine Months ended September 30, 2021
(Dollars in thousands)	Total		Residential Real Estate	Commercial Real Estate	Other Commercial	Home Equity	Other Consumer
Balance at beginning of period	$	158,243	9,604	86,999	49,133	8,182	4,325
Provision for credit losses	(2,921)		2,005	11,663	(18,905)	(491)	2,807
Charge-offs	(8,566)		(38)	(203)	(3,790)	(45)	(4,490)
Recoveries	6,853		288	1,579	2,407	219	2,360
Balance at end of period	$	153,609	11,859	100,038	28,845	7,865	5,002

	Nine Months ended September 30, 2020
(Dollars in thousands)	Total		Residential Real Estate	Commercial Real Estate	Other Commercial	Home Equity	Other Consumer
Balance at beginning of period	$	124,490	10,111	69,496	36,129	4,937	3,817
Impact of adopting CECL	3,720		3,584	10,533	(13,759)	3,400	(38)
Acquisitions	49		—	49	—		—
Provision for credit losses	39,165		(3,923)	14,084	28,358	(860)	1,506
Charge-offs	(7,865)		(21)	(625)	(3,471)	(293)	(3,455)
Recoveries	4,993		54	860	1,496	246	2,337
Balance at end of period	$	164,552	9,805	94,397	48,753	7,430	4,167