The following table summarizes the changes in the carrying amount of goodwill during the prior two fiscal years by reportable operating segment:


						Total
	Building		Consumer			Reportable
	Products		Products			Segments		Other		Total
Balance at May 31, 2024	$	65,948	$	265,647		$	331,595	$	-	$	331,595
Acquisitions and purchase accounting adjustments(1)		41,639		(237	)		41,402		-		41,402
Translation adjustments		3,483		-			3,483		-		3,483
Balance at May 31, 2025	$	111,070	$	265,410		$	376,480	$	-	$	376,480
Acquisitions and purchase accounting adjustments(1)		118,402		-			118,402		-		118,402
Translation adjustments		5,902		-			5,902		-		5,902
Balance at May 31, 2026	$	235,374	$	265,410		$	500,784	$	-	$	500,784

(1)

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

Accumulated goodwill impairment charges within Other totaled $212,500 as of May 31, 2026 and May 31, 2025, respectively.

Intangible assets with definite lives are amortized on a straight-line basis over their estimated useful lives, which range from 10 to 20 years. The following table summarizes other intangible assets by class as of the end of the prior two fiscal years:


	2026				2025
			Accumulated				Accumulated
	Cost		Amortization		Cost		Amortization
Indefinite-lived intangible assets:
Trade names	$	105,081	$	-	$	83,981	$	-
Total indefinite-lived intangible assets		105,081		-		83,981		-
Definite-lived intangible assets:
Patents	$	7,000	$	642	$	-	$	-
Trade names		16,374		2,535		8,004		923
Customer relationships		242,200		87,249		149,188		76,027
Non-compete agreements		5,208		3,073		2,708		2,708
Technology know-how		53,842		13,445		35,404		9,229
Total definite-lived intangible assets		324,624		106,944		195,304		88,887
Total intangible assets	$	429,705	$	106,944	$	279,285	$	88,887

Amortization expense totaled $17,096, $13,659, and $11,787 in fiscal 2026, fiscal 2025 and fiscal 2024, respectively.

The following section provides additional information on material impairment activity for the periods presented.

Fiscal 2025: During the fourth quarter of fiscal 2025, we determined that an impairment indicator was present for the long-lived assets of the GTI business within the Consumer Products operating segment, primarily due to uncertainties resulting from the imposition of tariffs on imported goods. We determined that intangible assets with a combined carrying amount of $59,711 were impaired and wrote them down to their estimated fair value of $9,661 resulting in a pre-tax impairment charge of $50,050. Fair value was based on expected future cash flows using Level 3 inputs under ASC 820. The cash flows are those expected to be generated by market participants, discounted at an appropriate rate for the risks inherent in those cash flow projections, or 14%. Our projections contain uncertainties as they require us to make assumptions about market comparables, future cash flows, and the appropriate discount rates to reflect the risk inherent in the future cash flows and to derive a reasonable enterprise value. The estimated future cash flows reflect our latest assumptions of the financial projections based on the current and anticipated tariff landscape, including estimates of revenue over the foreseeable future and long-term growth rates, and operating margins based on historical trends and future cost containment activities. Goodwill was tested separately at the Building Products and Consumer Products reporting unit level and was not impaired.

Fiscal 2024: On May 29, 2024, we became a noncontrolling equity partner in SES, a new unconsolidated joint venture with Hexagon Composites by selling 51% of the nominal share capital of our former Sustainable Energy Solutions operating segment in Europe. The book value of the disposal group exceeded its estimated fair market value (determined using Level 2 inputs), which resulted in the recording of a $32,203 impairment charge. Included in the impairment charge was goodwill with a book value of $14,210, which was deemed fully impaired and written off and long-lived assets with a carrying value of $46,215 which were written down to their estimated fair market value of $28,222.