Goodwill and other intangible assets (Tables)

12 Months Ended

Dec. 31, 2021

Goodwill And Intangible Assets Disclosure [Abstract]

Schedule of Finite-Lived Intangible Assets

A summary of total amortizing intangible assets follows.

	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
	(In thousands)
December 31, 2021
Core deposit	$	131,664	$	127,746	$	3,918
Other		6,757		6,677		80
Total	$	138,421	$	134,423	$	3,998
December 31, 2020
Core deposit	$	131,664	$	119,125	$	12,539
Other		6,757		5,131		1,626
Total	$	138,421	$	124,256	$	14,165

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, 2021 and 2020 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