v3.26.1
DEBT FACILITIES (Tables)
 12 Months Ended
Mar. 31, 2026
Debt and Financing Obligations [Abstract]  
Disclosure of detailed information about borrowings
Long-term debt, net of transaction costs is as follows:
Repayment20262025
Notional amountperiodCurrentNon-currentCurrentNon-current
Unsecured senior notes
    U.S. dollar, fixed rate - 3.60% to 4.90%
US$778.0 2026-2034$102.0 $978.7 $20.0 $1,114.7 
    Canadian dollar, Series 1, fixed rate - 5.54%
$400.0 2028— 398.7 — 398.1 
    Canadian dollar, fixed rate - 4.15%
$5.7 20272.9 2.8 2.9 5.7 
Term loans
    U.S. dollar, variable rateUS$47.7 2026-20274.1 61.9 178.7 288.3 
    Canadian dollar, variable rate$285.9 2026-20285.6 280.4 5.6 12.6 
    Other— — 33.5 — 
Lease liabilities
    U.S. dollar2026-207142.3 433.3 92.0 432.0 
    Other2026-205425.9 260.7 29.1 239.0 
R&D obligations
    Canadian dollar2026-204869.2 565.7 37.2 581.0 
Revolving credit facilities
    U.S. dollar, variable rate— — — — 
    Canadian dollar, variable rate— — — — 
Total long-term debt$252.0 $2,982.2 $399.0 $3,071.4 
Disclosure of reconciliation of liabilities arising from financing activities
Information on the change in long-term debt for which cash flows have been classified as financing activities in the statement of cash flows are as follows:
UnsecuredRevolving
seniorTermLeaseR&D credit
notesloansliabilitiesobligationsfacilityTotal
Net book value as at March 31, 2024$1,678.3 $239.9 $551.9 $574.2 $30.0 $3,074.3 
Changes from financing cash flows
Net repayment from borrowing under
revolving credit facilities
— — — — (45.0)(45.0)
Proceeds from long-term debt— 285.8 — 45.7 — 331.5 
Repayment of long-term debt(216.1)(72.6)— (32.6)— (321.3)
Repayment of lease liabilities— — (59.9)— — (59.9)
Total changes from financing cash flows$(216.1)$213.2 $(59.9)$13.1 $(45.0)$(94.7)
Non-cash changes
Business combinations (Note 2)
— 48.5 110.0 — — 158.5 
Foreign currency exchange differences78.1 16.3 36.7 — 15.0 146.1 
Additions and remeasurements of lease liabilities— — 153.4 — — 153.4 
Accretion— — — 32.5 — 32.5 
Other1.1 0.8 — (1.6)— 0.3 
Total non-cash changes$79.2 $65.6 $300.1 $30.9 $15.0 $490.8 
Net book value as at March 31, 2025$1,541.4 $518.7 $792.1 $618.2 $— $3,470.4 
Changes from financing cash flows
Net repayment from borrowing under
revolving credit facilities
— — — — — — 
Proceeds from long-term debt— 68.4 — 21.1 — 89.5 
Repayment of long-term debt(22.1)(217.9)— (38.9)— (278.9)
Repayment of lease liabilities— — (61.1)— — (61.1)
Total changes from financing cash flows$(22.1)$(149.5)$(61.1)$(17.8)$— $(250.5)
Non-cash changes
Foreign currency exchange differences(35.1)(17.2)(5.8)— — (58.1)
Additions and remeasurements of lease liabilities— — 37.4 — — 37.4 
Accretion— — — 34.1 — 34.1 
Other0.9 — (0.4)0.4 — 0.9 
Total non-cash changes$(34.2)$(17.2)$31.2 $34.5 $— $14.3 
Net book value as at March 31, 2026$1,485.1 $352.0 $762.2 $634.9 $— $3,234.2