Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill and Other Intangibles

Changes in the carrying amount and accumulated amortization of the Company’s core deposit premiums and other intangible assets at December 31, 2021 and 2020 were as follows:

(In thousands)	2021		2020
Core deposit premiums:
Balance, beginning of year	$	97,363	$	111,808
Acquisitions(1)	9,295		—
Disposition of intangible asset(2)	(674)		(2,324)
Amortization	(12,122)		(12,121)
Balance, end of year	93,862		97,363
Books of business and other intangibles:
Balance, beginning of year	13,747		15,532
Disposition of intangible asset	—		(413)
Amortization	(1,374)		(1,372)
Balance, end of year	12,373		13,747
Total other intangible assets, net	$	106,235	$	111,110

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(1)    Core deposit premiums of $5.1 million and $4.2 million were recorded during 2021 as part of the Triumph and Landmark acquisitions, respectively. See Note 2, Acquisitions, for additional information on acquisitions completed in 2021.

(2)    Adjustments recorded for the premiums on certain deposit liabilities associated with the sale of banking operations.

The carrying basis and accumulated amortization of the Company’s other intangible assets at December 31, 2021 and 2020 were as follows:

(In thousands)	2021		2020
Core deposit premiums:
Gross carrying amount	$	153,496	$	146,355
Accumulated amortization	(59,634)		(48,992)
Core deposit premiums, net	93,862		97,363
Books of business and other intangibles:
Gross carrying amount	19,937		19,937
Accumulated amortization	(7,564)		(6,190)
Books of business and other intangibles, net	12,373		13,747
Total other intangible assets, net	$	106,235	$	111,110

Schedule of Estimated Remaining Amortization Expense

The Company’s estimated remaining amortization expense on other intangible assets as of December 31, 2021 is as follows: 

Year	(In thousands)
2022	$	13,894
2023	13,612
2024	12,709
2025	10,125
2026	9,652
Thereafter	46,243
Total	$	106,235