The following table summarizes the changes in the carrying amount of goodwill during fiscal 2024 and fiscal 2023:


(In millions)	Total
Balance at May 31, 2022	$	80.0
Acquisitions and purchase accounting adjustments (1)		(0.8	)
Translation adjustments		(0.6	)
Balance at May 31, 2023		78.6
Acquisitions and purchase accounting adjustments (1)		1.1
Translation adjustments		(0.1	)
Balance at May 31, 2024	$	79.6

(1)

For additional information regarding our acquisitions, refer to “Note O – Acquisitions.”

Intangible assets with definite lives are amortized on a straight-line basis over their estimated useful lives, which range from 3 to 20 years. The following table summarizes other intangible assets by class as of the end of the prior two fiscal years:


	2024				2023
			Accumulated				Accumulated
(In millions)	Cost		Amortization		Cost		Amortization
Indefinite-lived intangible assets:
Trademarks	$	5.2	$	-	$	5.2	$	-
In-process research & development		1.3		-		1.3		-
Total indefinite-lived intangible assets		6.5		-		6.5		-
Definite-lived intangible assets:
Customer relationships	$	102.8	$	39.8	$	102.8	$	35.0
Non-compete agreements		2.0		2.0		2.0		1.9
Technology/know-how		11.0		3.5		11.0		2.0
Total definite-lived intangible assets		115.8		45.3		115.8		38.9
Total intangible assets	$	122.3	$	45.3	$	122.3	$	38.9

Amortization expense totaled $6.3 million, $6.3 million, and $4.8 million in fiscal 2024, fiscal 2023 and fiscal 2022, respectively.

During fiscal 2024, we lowered the estimate of fair value less costs to sell to reflect the expected scrap value of the WSCP toll processing equipment to $0.2 million, resulting in a pre-tax impairment charge of $1.4 million.

During fiscal 2023, we committed to two separate plans to liquidate certain fixed assets: (1) idled equipment at the manufacturing facility in Taylor, Michigan; and (2) the net assets of WSCP’s toll processing facility in Cleveland, Ohio. As both asset groups have met the criteria for classification as assets held for sale, net assets in the amount of $2.6 million have been presented separately as assets held for sale on our combined balance sheet at May 31, 2023. In accordance with the applicable accounting guidance, the net assets were measured at fair market value less costs to sell, resulting in an overall impairment charge of $2.1 million during fiscal 2023.

During the third quarter of fiscal 2022, management committed to plans to sell certain production equipment at the WSCP facility in Twinsburg, Ohio. As all of the criteria for classification of assets held for sale were met, the net assets were presented separately as assets held for sale on our combined balance sheet at May 31, 2022. In accordance with the applicable accounting guidance, the net assets were written down to the fair value less costs to sell, resulting in an impairment charge of $3.1 million in fiscal 2022. These assets were subsequently sold in fiscal 2023.