The following table presents changes in goodwill balances as allocated to each segment for fiscal years 2020 and 2019 (dollars in millions):

(a)	In December 2018, we acquired a frozen potato processor in Australia and recorded $75.1 million of goodwill in our Global segment. See Note 5, Acquisitions, for more information.

(b)	In July 2019, we acquired another frozen potato processor in Australia and recorded $106.1 million of goodwill in our Global segment. See Note 5, Acquisitions, for more information.

Identifiable intangible assets were as follows (dollars in millions):


	May 31, 2020							May 26, 2019
	Weighted							Weighted
	Average	Gross						Average	Gross
	Useful Life	Carrying		Accumulated		Intangible		Useful Life	Carrying		Accumulated		Intangible
	(in years)	Amount		Amortization		Assets, Net		(in years)	Amount		Amortization		Assets, Net
Non-amortizing intangible assets (a)	n/a	$	18.0	$	—	$	18.0	n/a	$	18.0	$	—	$	18.0
Amortizing intangible assets (b)	11		42.4		22.1		20.3	14		39.1		19.5		19.6
		$	60.4	$	22.1	$	38.3		$	57.1	$	19.5	$	37.6

(a)	Non-amortizing intangible assets represent brands and trademarks.

(b)	Amortizing intangible assets are principally composed of licensing agreements, brands, and customer relationships. Amortization expense was $2.5 million, $2.2 million, and $2.4 million in fiscal 2020, 2019, and 2018, respectively.

Foreign intangible assets are affected by foreign currency translation. Based on current intangibles subject to amortization, we expect intangible asset amortization expense will be approximately $2.6 million in fiscal 2021 and 2022 and $2.5 million, $2.0 million, and $1.7 million in fiscal 2023, 2024, and 2025, respectively, and approximately $9.0 million thereafter.

Impairment Testing

We test goodwill and non-amortizing intangible assets for impairment annually in the fourth quarter or sooner if events or changes in circumstances indicate that the carrying value of the asset may exceed fair value. Additionally, when we experience changes to our business or operating environment, we evaluate the remaining useful lives of our finite-lived purchased intangible assets to determine whether any adjustments to the useful lives are necessary.

As a result of the COVID-19 pandemic’s impact on our operations, we performed a quantitative analysis to test our goodwill for impairment during the fourth quarter of 2020. Based on the results of the quantitative impairment test, we determined that the fair values for total company and each of our Global, Foodservice, Retail, and Other reporting units exceeded the carrying value and therefore, no goodwill impairment existed. Additionally, we completed our tests of our non-amortizing intangibles in the fourth quarter and there was no indication of intangible asset impairment.