Goodwill and other intangibles (Tables)

6 Months Ended

Jun. 30, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Intangible Assets and Goodwill [Table Text Block]

The following table shows the activity in goodwill and other intangible assets for the three-month and six-month periods ended June 30, 2024 and 2023.

(in thousands)	Goodwill		Other intangible assets		Total
April 1, 2023	$	159,595	$	5,648	$	165,243
Amortization	—		328		328
June 30, 2023	$	159,595	$	5,320	$	164,915
April 1, 2024	$	159,595	$	4,332	$	163,927
Amortization	—		320		320
June 30, 2024	$	159,595	$	4,012	$	163,607

(in thousands)	Goodwill		Other intangible assets		Total
December 31, 2022	$	159,595	$	5,975	$	165,570
Amortization	—		655		655
June 30, 2023	$	159,595	$	5,320	$	164,915
December 31, 2023	$	159,595	$	4,652	$	164,247
Amortization	—		640		640
June 30, 2024	$	159,595	$	4,012	$	163,607

Intangible Assets Disclosure [Text Block]

The following table shows the balance of acquired intangible assets at June 30, 2024 and at December 31, 2023:

	June 30, 2024				December 31, 2023
(in thousands)	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Other intangible assets:
Core deposit intangible assets	$	14,456	$	10,444	$	14,456	$	9,804

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

Estimated amortization expense related to core deposit intangible assets for the remainder of 2024 and the next four years follows:

(in thousands)	Total
Six months ending December 31, 2024	$	574
2025	1,042
2026	887
2027	754
2028	618