Property, Plant and Equipment (Tables)

12 Months Ended

Mar. 31, 2026

Information related to the major categories of our depreciable assets is as follows:


(in millions)
March 31,	2026		2025
Land and land improvements (1)	$	112.3	$	106.1
Buildings and leasehold improvements	903.6		832.1
Machinery and equipment	1,434.3		1,205.4
Information systems	316.3		282.1
Radioisotope	829.9		749.8
Construction in progress (1)	509.5		512.1
Total property, plant, and equipment	4,105.9		3,687.7
Less: accumulated depreciation and depletion	(1,944.6)		(1,731.1)
Property, plant, and equipment, net	$	2,161.2	$	1,956.5

(1) Land is not depreciated. Construction in progress is not depreciated until placed in service.

The following table summarizes the activity in the liability for asset retirement obligations.


(in millions)	Asset Retirement Obligations
Balance at March 31, 2024	$	13.7
Liabilities incurred during the period	0.6
Liabilities settled during the period	(0.1)
Accretion expense and change in estimate	0.3
Foreign currency and other	(0.1)
Balance at March 31, 2025	$	14.4
Liabilities incurred during the period	1.0
Liabilities settled during the period	—
Accretion expense and change in estimate	0.3
Foreign currency and other	(0.4)
Balance at March 31, 2026	$	15.3