Goodwill and intangible assets (Tables)

3 Months Ended

Mar. 31, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

The following table summarizes changes in goodwill during the three months ended March 31, 2020. There was no such activity during the three months ended March 31, 2019.

	Goodwill
Balance at December 31, 2019	$	169,051
Addition from acquisition of Farmers National (see Note 2)	5,808
Balance at March 31, 2020	$	174,859

Schedule of Core Deposit and Other Intangibles

The composition of core deposit and other intangibles as of March 31, 2020 and December 31, 2019 are as follows:

	Core deposit and other intangibles
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
March 31, 2020
Core deposit intangible	$	52,165	$	(34,970	)	$	17,195
Customer base trust intangible	1,600		(427		)	1,173
Manufactured housing servicing intangible	1,088		(580		)	508
Total core deposit and other intangibles	$	54,853	$	(35,977	)	$	18,876
December 31, 2019
Core deposit intangible	$	49,675	$	(33,861	)	$	15,814
Customer base trust intangible	1,600		(387		)	1,213
Manufactured housing servicing intangible	1,088		(526		)	562
Total core deposit and other intangibles	$	52,363	$	(34,774	)	$	17,589

Schedule of Estimated Aggregate Amortization Expense of Core Deposit and Other Intangibles

The estimated aggregate future amortization expense of core deposit and other intangibles is as follows:

2020	$	3,492
2021	4,089
2022	3,350
2023	2,574
2024	2,015
Thereafter	3,356
	$	18,876