v3.26.1
Goodwill and Other Intangible Assets (Tables)
 3 Months Ended
Jun. 30, 2026
Intangible Asset, Goodwill and Other [Abstract]  
Schedule of Changes in the Carrying Value of Goodwill
The following are the changes in the carrying value of goodwill:
(Millions of U.S. dollars)EuropeSiding & TrimDeck, Rail & AccessoriesTotal
Balance - March 31, 2026
$205.0 $1,141.2 $3,434.2 $4,780.4 
Foreign exchange impact(1.5)— — (1.5)
Adjustments to Acquisition of The AZEK Company— (0.8)(2.3)(3.1)
Balance - June 30, 2026
$203.5 $1,140.4 $3,431.9 $4,775.8 
Schedule of Intangible Asset, Indefinite-Lived
The following are the net carrying amount of indefinite lived intangible assets other than goodwill:
June 30,March 31,
(Millions of U.S. dollars)20262026
Trade names$117.3 $118.2 
Other7.6 7.4 
Total$124.9 $125.6 
Schedule of Intangible Asset, Finite-Lived
The following are the net carrying amount of amortizable intangible assets:
June 30, 2026
(Millions of U.S. dollars)Lives in YearsGross Carrying AmountAccumulated AmortizationNet Carrying
Amount
Customer Relationships
2 to 18
$2,880.0 $(228.4)$2,651.6 
Trade Names
5 to 15
330.0 (26.7)303.3 
Technology
10
210.0 (29.3)180.7 
Total$3,420.0 $(284.4)$3,135.6 
March 31, 2026
(Millions of U.S. dollars)Lives in YearsGross Carrying AmountAccumulated AmortizationNet Carrying
Amount
Customer Relationships
2 to 18
$2,880.3 $(165.8)$2,714.5 
Trade Names
5 to 15
330.0 (19.6)310.4 
Technology
10
210.0 (20.4)189.6 
Total$3,420.3 $(205.8)$3,214.5