v3.26.1
Leases (Tables)
12 Months Ended
May 31, 2026
Leases  
Schedule of operating lease cost

  ​ ​ ​

For the Year Ended May 31, 

  ​ ​ ​

2026

  ​ ​ ​

2025

  ​ ​ ​

2024

Operating lease cost

$

42.4

$

28.0

$

23.9

Short-term lease cost

 

5.3

 

6.0

 

6.6

Variable lease cost

 

13.0

 

5.9

 

5.4

$

60.7

$

39.9

$

35.9

Schedule of maturities of our lease payments

With the exception of land leases for certain airframe maintenance facilities that expire in 2122 and 2108, our operating leases expire at various dates through 2061. Maturities of our operating lease payments as of May 31, 2026 are as follows:

2027

  ​ ​ ​

$

22.8

2028

18.9

2029

 

13.8

2030

 

10.6

2031

 

9.4

Thereafter

 

152.3

Total undiscounted payments

 

227.8

Less: Imputed interest

 

109.7

Present value of minimum lease payments

 

118.1

Less: Operating lease liabilities – current

 

(17.0)

Operating lease liabilities – non-current

$

101.1

Schedule of weighted-average remaining lease term and weighted-average discount rate

  ​ ​ ​

May 31,

2026

  ​ ​ ​

2025

Remaining lease term

 

14.7 years

 

11.9 years

Discount rate

 

7.4%

6.9%

Schedule of supplemental cash flow information related to leases

  ​ ​ ​

For the Year Ended May 31, 

  ​ ​ ​

2026

  ​ ​ ​

2025

  ​ ​ ​

2024

Cash paid for amounts included in the measurement of lease liabilities

$

40.1

$

15.9

$

16.4

Operating lease liabilities arising from obtaining ROU assets

 

58.4

 

21.7

 

42.0