Goodwill and Other Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2022

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

The following table summarizes changes in the carrying amount of goodwill:

(In thousands)	At September 30, 2022		At December 31, 2021
Balance, beginning of period	$	538,373	$	538,373
Sterling merger	1,939,432		—
Bend acquisition	35,966		—
Balance, end of period	$	2,513,771	$	538,373

Schedule of Finite-Lived Intangible Assets

The following table summarizes other intangible assets:

	At September 30, 2022						At December 31, 2021
(In thousands)	Gross Carrying Amount (1)		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Core deposits	$	145,725	$	32,022	$	113,703	$	26,625	$	18,516	$	8,109
Customer relationships	115,000		21,434		93,566		21,000		11,240		9,760
Total other intangible assets	$	260,725	$	53,456	$	207,269	$	47,625	$	29,756	$	17,869

(1)In connection with the Sterling merger and Bend acquisition, Webster recorded a $119.1 million core deposit intangible and $94.0 million of customer relationship intangibles, all of which are being amortized on an accelerated basis over a period of
10 years.

Schedule Of Future Amortization expense

The remaining estimated aggregate future amortization expense for other intangible assets as of September 30, 2022 is as follows:

(In thousands)	Amortization Expense
Remainder of 2022	$	8,230
2023	30,315
2024	24,442
2025	21,455
2026	21,455
Thereafter	101,372