Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of Changes in Carrying Amount of Goodwill

Changes in the carrying amount of the Corporation's goodwill by business segment for the years ended December 31, 2020 and 2019 were as follows:

(Dollars in thousands)	Banking		Wealth Management		Insurance		Consolidated
Balance at December 31, 2018	$	138,476	$	15,434	$	18,649	$	172,559
Addition to goodwill from acquisitions	—		—		—		—
Balance at December 31, 2019	138,476		15,434		18,649		172,559
Addition to goodwill from acquisitions	—		—		—		—
Balance at December 31, 2020	$	138,476	$	15,434	$	18,649	$	172,559

Components of Intangible Assets

The following table reflects the components of intangible assets at the dates indicated:

	At December 31, 2020						At December 31, 2019
(Dollars in thousands)	Gross Carrying Amount		Accumulated Amortization (1)		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Amortized intangible assets:
Core deposit intangibles	$	6,788	$	4,787	$	2,001	$	6,788	$	4,026	$	2,762
Customer related intangibles	7,604		7,147		457		8,819		7,923		896
Servicing rights	22,354		15,946		6,408		19,160		12,534		6,626
Total amortized intangible assets	$	36,746	$	27,880	$	8,866	$	34,767	$	24,483	$	10,284

Estimated Aggregate Amortization Expense

The estimated aggregate amortization expense for core deposit and customer-related intangibles for each of the five succeeding fiscal years and thereafter follows:

(Dollars in thousands)
Year	Amount
2021	$	923
2022	666
2023	409
2024	267
2025	144
Thereafter	49
Total	$	2,458

Changes in Servicing Rights

Changes in the servicing rights balance are summarized as follows:

	For the Years Ended December 31,
(Dollars in thousands)	2020		2019		2018
Beginning of period	$	6,626	$	6,768	$	6,573
Servicing rights capitalized	3,194		1,787		1,458
Amortization of servicing rights	(3,325)		(1,929)		(1,263)
Changes in valuation allowance	(87)		—		—
End of period	$	6,408	$	6,626	$	6,768
Loans serviced for others	$	1,200,742	$	1,080,905	$	1,031,506

Activity In Valuation Allowance For Mortgage Servicing Rights Table

Changes in the valuation allowance for mortgage servicing rights are summarized as follows:

	For the Years Ended December 31,
(Dollars in thousands)	2020		2019		2018
Valuation allowance, beginning of period	$	—	$	—	$	—
Additions	(87)		—		—
Valuation allowance, end of period	$	(87)	$	—	$	—

Estimated Amortization Expense of Servicing Rights

The estimated amortization expense of servicing rights for each of the five succeeding fiscal years and thereafter is as follows:

(Dollars in thousand)
Year	Amount
2021	$	1,675
2022	1,250
2023	931
2024	693
2025	427
Thereafter	1,432
Total	$	6,408