Goodwill and other intangible assets (Tables)

12 Months Ended

Dec. 31, 2019

Goodwill And Intangible Assets Disclosure [Abstract]

Schedule of Finite-Lived Intangible Assets

Total amortizing intangible assets were comprised of the following:

	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
	(In thousands)
December 31, 2019
Core deposit	$	131,664	$	105,802	$	25,862
Other		6,757		3,585		3,172
Total	$	138,421	$	109,387	$	29,034
December 31, 2018
Core deposit	$	887,459	$	843,572	$	43,887
Other		182,568		179,388		3,180
Total	$	1,070,027	$	1,022,960	$	47,067

Estimated Amortization Expense in Future Years

Estimated amortization expense in future years for such intangible assets is as follows:

	(In thousands)
Year ending December 31:
2020	$	14,869
2021		10,167
2022		3,998
	$	29,034

Summary of Goodwill Assigned to Reportable Segments for Purposes of Testing for Impairment

A summary of goodwill assigned to each of the Company’s reportable segments as of December 31, 2019 and 2018 for purposes of testing for impairment is as follows:

	(In thousands)
Business Banking	$	864,366
Commercial Banking		1,401,873
Commercial Real Estate		654,389
Discretionary Portfolio		—
Residential Mortgage Banking		—
Retail Banking		1,309,191
All Other		363,293
Total	$	4,593,112