Goodwill and other intangibles

3 Months Ended

Mar. 31, 2019

Goodwill [Line Items]

Goodwill and Intangible Assets Disclosure [Text Block]

Goodwill and Other Intangible Assets

The following table shows the activity in goodwill and other intangible assets for the three months ended March 31, 2019 and 2018.

(in thousands)	Goodwill		Other intangible assets		Total
December 31, 2017	$	72,334	$	—	$	72,334
Acquired goodwill and other intangible assets	—		—		—
Amortization	—		—		—
March 31, 2018	$	72,334	$	—	$	72,334
December 31, 2018	$	112,739	$	6,971	$	119,710
Acquired goodwill and other intangible assets	—		—		—
Amortization	—		289		289
March 31, 2019	$	112,739	$	6,682	$	119,421

Park evaluates goodwill for impairment during the second quarter of each year, with financial data as of March 31. Based on the analysis performed during the second quarter of 2018, the Company determined that goodwill for Park's reporting unit, PNB, was not impaired. There have been no subsequent circumstances or events triggering an additional evaluation.

Acquired Intangible Assets

The following table shows the balance of acquired intangible assets as of March 31, 2019. Park had no acquired intangible assets as of March 31, 2018.

	2019
(in thousands)	Gross Carrying Amount		Accumulated Amortization
Other intangible assets:
Core deposit intangibles	$	6,249	$	867
Trade name intangible	1,300		—
Total	$	7,549	$	867

Core deposit intangibles are being amortized, on an accelerated basis, over a period of ten years. The trade name intangible is an indefinite life asset and is not amortized, but rather is assessed, at least annually, for impairment. Aggregate amortization expense was $289,000 for the three months ended March 31, 2019. There was no amortization expense for the three months ended March 31, 2018.

Estimated amortization expense for each of the periods listed below follows:

(in thousands)	Total
Nine months ending December 31, 2019	$	945
2020	1,149
2021	869
2022	629
2023	521