Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill [Table Text Block]

The change in goodwill during the year is as follows:

	2020		2019
	(dollars in thousands)
Balance, January 1	$	162,574	$	145,909
Acquired goodwill		45,798		16,665
Impairment		-		-
Balance, December 31	$	208,372	$	162,574

Intangible Assets Disclosure [Text Block]

The table below provides information regarding the carrying amounts and accumulated amortization of total amortized intangible assets as of the dates set forth below.

	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
	(dollars in thousands)
As of December 31, 2020
Core deposit intangibles	$	18,515	$	(7,538)	$	10,977
As of December 31, 2019
Core deposit intangibles	$	10,439	$	(4,979)	$	5,460

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

Aggregate amortization expense was approximately $2.6 million, $1.4 million and $0.6 million for 2020, 2019 and 2018, respectively. Estimated amortization expense for each of the next five years (dollars in thousands):

2021	$	1,981
2022		1,485
2023		1,438
2024		1,235
2025		1,116