Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Summary Of Intangible Assets and Accumulated Amortization Included In The Consolidated Statements of Condition

The following is a summary of other intangible assets included in the Consolidated Condensed Statements of Condition:

	March 31, 2019							December 31, 2018
(Dollars in thousands)	Gross Carrying Amount		Accumulated Amortization			Net Carrying Value		Gross Carrying Amount		Accumulated Amortization			Net Carrying Value
Core deposit intangibles	$	157,150	$	(32,955	)	$	124,195	$	157,150	$	(28,150	)	$	129,000
Customer relationships	77,865		(56,744		)	21,121		77,865		(55,597		)	22,268
Other (a)	5,622		(2,120		)	3,502		5,622		(1,856		)	3,766
Total	$	240,637	$	(91,819	)	$	148,818	$	240,637	$	(85,603	)	$	155,034

(a) Balance primarily includes noncompete covenants, as well as $.3 million related to state banking licenses not subject to amortization.

Schedule of Estimated Aggregate Amortization Expense for Intangible Assets

As of March 31, 2019 the estimated aggregated amortization expense is expected to be:

(Dollars in thousands)
Year	Amortization
Remainder of 2019	$	18,625
2020	21,159
2021	19,547
2022	17,412
2023	16,117
2024	14,679

Summary Of Gross Goodwill And Accumulated Impairment Losses And Write-Offs Detailed By Reportable Segments

The following is a summary of goodwill by reportable segment included in the Consolidated Condensed Statements of Condition as of March 31, 2019 and December 31, 2018.

(Dollars in thousands)	Regional Banking		Fixed Income		Total
December 31, 2017	$	1,243,885	$	142,968	$	1,386,853
Additions (a)	11,648		—		11,648
March 31, 2018	$	1,255,533	$	142,968	$	1,398,501
December 31, 2018	$	1,289,819	$	142,968	$	1,432,787
Additions	—		—		—
March 31, 2019	$	1,289,819	$	142,968	$	1,432,787

(a) See Note 2 - Acquisitions and Divestitures for further details regarding goodwill related to acquisitions.