Goodwill and Other Intangibles (Tables)

9 Months Ended

Sep. 30, 2018

Goodwill And Intangible Assets Disclosure [Abstract]

Changes in the carrying amount of goodwill for the periods ended September 30, 2018 and December 31, 2017 by reportable segment are as follows (in thousands):

	Commercial Banking		Institutional Banking			Personal Banking		Healthcare Services		Total
Balances as of January 1, 2018	$	59,419	$	51,332		$	70,116	$	—	$	180,867
Balances as of September 30, 2018	$	59,419	$	51,332		$	70,116	$	—	$	180,867


Balances as of January 1, 2017	$	59,419	$	98,861		$	70,116	$	—	$	228,396
Discontinued assets ─ goodwill and other intangibles, net		—		(47,529	)		—		—		(47,529	)
Balances as of December 31, 2017	$	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 September 30, 2018 and December 31, 2017 (in thousands):

	As of September 30, 2018
	Core Deposit Intangible Assets		Customer Relationships		Total
Gross carrying amount	$	50,059	$	71,852	$	121,911
Accumulated amortization		44,375		61,201		105,576
Net carrying amount	$	5,684	$	10,651	$	16,335

	As of December 31, 2017
	Core Deposit Intangible Assets		Customer Relationships		Total
Gross carrying amount	$	50,059	$	71,342	$	121,401
Accumulated amortization		42,209		58,935		101,144
Net carrying amount	$	7,850	$	12,407	$	20,257

Aggregate Amortization Expense Recognized

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

	Three Months Ended September 30,				Nine Months Ended September 30,
	2018		2017		2018		2017
Aggregate amortization expense	$	1,385	$	1,715	$	4,432	$	5,685

Estimated Amortization Expense of Intangible Assets

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

For the three months ending December 31, 2018	$	1,332
For the year ending December 31, 2019		4,785
For the year ending December 31, 2020		3,830
For the year ending December 31, 2021		2,825
For the year ending December 31, 2022		1,886
For the year ending December 31, 2023		1,167