Goodwill and Acquired Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2022

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

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

	For the Year Ended December 31,
(In thousands)	2022		2021		2020
Beginning of year	$	252,154	$	221,176	$	205,286
Changes from business combinations	228,165		30,978		15,890
Total	$	480,319	$	252,154	$	221,176

Schedule of Core Deposit Intangibles

The change in balance for CDI is as follows:

	For the Year Ended December 31,
(In thousands)	2022		2021		2020
Beginning of year	$	12,998	$	14,577	$	18,305
Acquired CDI, including measurement period adjustments	67,388		3,454		2,129
Amortization expense	(9,101)		(5,033)		(5,857)
End of year	$	71,285	$	12,998	$	14,577
(In months)
Remaining average amortization period for CDI	49		39		44

Gross Carrying Amount and Accumulated Amortization of Intangible Asset

The gross carrying amount and accumulated amortization of the Company's CDI subject to amortization as of:

	December 31, 2022				December 31, 2021
(In thousands)	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Core deposit intangible	$	97,778	$	(26,493)	$	41,596	$	(28,598)