Debt (Tables)

12 Months Ended

Mar. 31, 2026

Debt Disclosure [Abstract]

Schedule of Debt

Indebtedness as of March 31, 2026 and 2025 was as follows:


(in millions)						March 31, 2026						March 31, 2025
Short-term debt
Private Placement Senior Notes						118.9						125.0
Total short-term debt						$	118.9					$	125.0

Long-term debt
Private Placement Senior Notes						$	438.9					$	549.2
Revolving Credit Facility						37.8						34.8
Deferred financing costs						(13.8)						(15.3)
Senior Public Notes						1,350.0						1,350.0
Total long-term debt						$	1,812.8					$	1,918.7
Total debt						$	1,931.7					$	2,043.7

Supplemental cash flow information related to debt is as follows::


(in millions)
Years Ended March 31,						2026						2025						2024
Cash paid during the year for interest						$	64.7					$	89.4					$	142.2

Senior Notes in Private Placement [Table Text Block]

Our outstanding Private Placement Senior Notes at March 31, 2026 and 2025 were as follows:


(in millions)						Applicable Note Purchase Agreement						Maturity Date						U.S. Dollar Value at March 31, 2026						U.S. Dollar Value at March 31, 2025

$25,000 Senior notes at 3.55%						2012 Private Placement						December 2027						$	25.0					$	25.0
$125,000 Senior notes at 3.45%						2015 Private Placement						May 2025						—						125.0
$125,000 Senior notes at 3.55%						2015 Private Placement						May 2027						125.0						125.0
$100,000 Senior notes at 3.70%						2015 Private Placement						May 2030						100.0						100.0
$50,000 Senior notes at 3.93%						2017 Private Placement						February 2027						50.0						50.0
€60,000 Senior notes at 1.86%						2017 Private Placement						February 2027						68.9						65.0
$45,000 Senior notes at 4.03%						2017 Private Placement						February 2029						45.0						45.0
€20,000 Senior notes at 2.04%						2017 Private Placement						February 2029						23.0						21.7
£45,000 Senior notes at 3.04%						2017 Private Placement						February 2029						59.5						58.2
€19,000 Senior notes at 2.30%						2017 Private Placement						February 2032						21.8						20.6
£30,000 Senior notes at 3.17%						2017 Private Placement						February 2032						39.7						38.8
Total Private Placement Senior Notes																		$	557.8					$	674.2

Schedule of Maturities of Long-term Debt [Table Text Block]

The combined annual aggregate amount of maturities of our outstanding debt by fiscal year is as follows:


(in millions)
2027			$	118.9
2028			150.0
2029			127.5
2030			37.8
2031 and thereafter			1,511.5
Total			$	1,945.6