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Property and Equipment (Tables)
12 Months Ended
Sep. 30, 2024
Property and Equipment  
Schedule of property and equipment, at cost

Fiscal Year Ended

September 30, 

September 30, 

Useful Lives

    

2024

    

2023

    

(years)

(in millions)

Building and land

$

10.1

$

10.4

 

10

-

45

Leasehold improvements

 

299.3

 

329.4

 

1

-

20

Computer systems and equipment

 

659.6

 

716.7

 

3

-

12

Furniture and fixtures

 

92.2

 

97.9

 

3

-

10

Total

 

1,061.2

 

1,154.4

Accumulated depreciation and amortization

 

(706.8)

 

(771.8)

Property and equipment, net

$

354.4

$

382.6