Goodwill and Other Intangibles (Tables)

3 Months Ended

Mar. 31, 2020

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, 2020 and December 31, 2019 by reportable segment are as follows (in thousands):

	Commercial Banking		Institutional Banking		Personal Banking		Total
Balances as of January 1, 2020	$	59,419	$	51,332	$	70,116	$	180,867
Balances as of March 31, 2020	$	59,419	$	51,332	$	70,116	$	180,867
Balances as of January 1, 2019	$	59,419	$	51,332	$	70,116	$	180,867
Balances as of December 31, 2019	$	59,419	$	51,332	$	70,116	$	180,867

Changes in Intangible Assets

The following table lists the finite-lived intangible assets that continue to be subject to amortization as of March 31, 2020 and December 31, 2019 (in thousands):

	As of March 31, 2020
	Core Deposit Intangible Assets		Customer Relationships		Total
Gross carrying amount	$	50,059	$	89,928	$	139,987
Accumulated amortization		47,607		66,541		114,148
Net carrying amount	$	2,452	$	23,387	$	25,839

	As of December 31, 2019
	Core Deposit Intangible Assets		Customer Relationships		Total
Gross carrying amount	$	50,059	$	89,952	$	140,011
Accumulated amortization		47,140		65,274		112,414
Net carrying amount	$	2,919	$	24,678	$	27,597

Aggregate Amortization Expense Recognized

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

	Three Months Ended March 31,
	2020		2019
Aggregate amortization expense	$	1,734	$	1,327

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, 2020	$	4,678
For the year ending December 31, 2021		5,408
For the year ending December 31, 2022		4,468
For the year ending December 31, 2023		3,750
For the year ending December 31, 2024		2,965