Repurchases of Common Shares	12 Months Ended
Mar. 31, 2026
Repurchases of Common Shares [Abstract]
Schedule of Treasury Stock by Class [Text Block]	15. REPURCHASES OF ORDINARY SHARES On May 3, 2023 our Board of Directors terminated the previous share repurchase program and authorized a new share repurchase program (the "Outgoing Repurchase Program") for the purchase of up to $500.0 million (exclusive of fees, commissions, and other charges), with no specified expiration date. As of March 31, 2026, there was $75.0 million (exclusive of fees, commissions, and other charges) of remaining availability under the Outgoing Repurchase Program. Under the Outgoing Repurchase Program, the Company could repurchase its shares from time to time through open market purchases, including 10b5-1 plans. It also permitted share repurchases to be activated, suspended or discontinued at any time. On May 5, 2026, the Board of Directors terminated the Outgoing Repurchase Program and authorized a new share repurchase program (the "New Repurchase Program") for the purchase of up to $1,000.0 million (exclusive of fees, commissions, and other charges). Under the New Repurchase Program, we may repurchase our shares from time to time through open market purchases, including 10b5-1 plans. Any share repurchases may be activated, suspended or discontinued at any time. There is no limitation to the number of shares that can be repurchased in a year and there is no expiration date for the New Repurchase Program. During fiscal 2026, we repurchased 0.9 million of our ordinary shares for the aggregate amount of $225.0 million (exclusive of fees, commissions, and other charges) pursuant to authorizations under the Outgoing Repurchase Program. During fiscal 2025, we repurchased 0.9 million of our ordinary shares for the aggregate amount of $200.0 million (exclusive of fees, commissions, and other charges) pursuant to the authorizations under the Outgoing Repurchase Program. During fiscal 2024, we had no share repurchase activity pursuant to Outgoing Repurchase Program authorizations. During fiscal 2026, we obtained 0.1 million of our ordinary shares in the aggregate amount of $12.5 million in connection with share-based compensation award programs. During fiscal 2025, we obtained 0.1 million of our ordinary shares in the aggregate amount of $11.3 million in connection with share-based compensation award programs. During fiscal 2024, we obtained 0.1 million of our ordinary shares in the aggregate amount of $11.8 million in connection with share-based compensation award programs.

On May 3, 2023 our Board of Directors terminated the previous share repurchase program and authorized a new share repurchase program (the "Outgoing Repurchase Program") for the purchase of up to $500.0 million (exclusive of fees, commissions, and other charges), with no specified expiration date. As of March 31, 2026, there was $75.0 million (exclusive of fees, commissions, and other charges) of remaining availability under the Outgoing Repurchase Program.

Under the Outgoing Repurchase Program, the Company could repurchase its shares from time to time through open market purchases, including 10b5-1 plans. It also permitted share repurchases to be activated, suspended or discontinued at any time.

On May 5, 2026, the Board of Directors terminated the Outgoing Repurchase Program and authorized a new share repurchase program (the "New Repurchase Program") for the purchase of up to $1,000.0 million (exclusive of fees, commissions, and other charges).

Under the New Repurchase Program, we may repurchase our shares from time to time through open market purchases, including 10b5-1 plans. Any share repurchases may be activated, suspended or discontinued at any time. There is no limitation to the number of shares that can be repurchased in a year and there is no expiration date for the New Repurchase Program.

During fiscal 2026, we repurchased 0.9 million of our ordinary shares for the aggregate amount of $225.0 million (exclusive of fees, commissions, and other charges) pursuant to authorizations under the Outgoing Repurchase Program. During fiscal 2025, we repurchased 0.9 million of our ordinary shares for the aggregate amount of $200.0 million (exclusive of fees, commissions, and other charges) pursuant to the authorizations under the Outgoing Repurchase Program. During fiscal 2024, we had no share repurchase activity pursuant to Outgoing Repurchase Program authorizations.

During fiscal 2026, we obtained 0.1 million of our ordinary shares in the aggregate amount of $12.5 million in connection with share-based compensation award programs. During fiscal 2025, we obtained 0.1 million of our ordinary shares in the aggregate amount of $11.3 million in connection with share-based compensation award programs. During fiscal 2024, we obtained 0.1 million of our ordinary shares in the aggregate amount of $11.8 million in connection with share-based compensation award programs.