Goodwill and Other Intangibles (Tables)

3 Months Ended

Mar. 31, 2022

Goodwill And Intangible Assets Disclosure [Abstract]

Changes in Carrying Amount of Goodwill

Changes in the carrying amount of goodwill for the periods ended March 31, 2022 and December 31, 2021 by reportable segment are as follows (in thousands):

	Commercial Banking		Institutional Banking		Personal Banking			Total
Balances as of January 1, 2022	$	59,419	$	51,332	$	63,767		$	174,518
Branch acquisition		3,694		—		4,013			7,707
Balances as of March 31, 2022	$	63,113	$	51,332	$	67,780		$	182,225
Balances as of January 1, 2021	$	59,419	$	51,332	$	70,116		$	180,867
Sale of component of business segment		—		—		(6,349	)		(6,349	)
Balances as of December 31, 2021	$	59,419	$	51,332	$	63,767		$	174,518

Changes in Intangible Assets

The following table lists the finite-lived intangible assets that continue to be subject to amortization as of March 31, 2022 and December 31, 2021 (in thousands):

	As of March 31, 2022
	Core Deposit Intangible Assets		Customer Relationships		Total
Gross carrying amount	$	50,059	$	73,512	$	123,571
Accumulated amortization		49,781		58,100		107,881
Net carrying amount	$	278	$	15,412	$	15,690

	As of December 31, 2021
	Core Deposit Intangible Assets		Customer Relationships		Total
Gross carrying amount	$	50,059	$	71,167	$	121,226
Accumulated amortization		49,623		57,187		106,810
Net carrying amount	$	436	$	13,980	$	14,416

Aggregate Amortization Expense Recognized

The following table has the aggregate amortization expense recognized in each period (in thousands):

	Three Months Ended March 31,
	2022		2021
Aggregate amortization expense	$	1,071	$	1,380

Estimated Amortization Expense of Intangible Assets

The following table lists estimated amortization expense of intangible assets in future periods (in thousands):

For the nine months ending December 31, 2022	$	3,408
For the year ending December 31, 2023		3,899
For the year ending December 31, 2024		3,169
For the year ending December 31, 2025		2,962
For the year ending December 31, 2026		2,103