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Property and Equipment
12 Months Ended
Sep. 30, 2023
Property and Equipment  
Property and Equipment

5.           Property and Equipment

Property and equipment, at cost, consists of the following:

Fiscal Year Ended

September 30, 

September 30, 

Useful Lives

    

2023

    

2022

    

(years)

(in millions)

Building and land

$

10.4

$

9.9

 

10

-

45

Leasehold improvements

 

329.4

 

339.7

 

1

-

20

Computer systems and equipment

 

716.7

 

672.1

 

3

-

12

Furniture and fixtures

 

97.9

 

103.1

 

3

-

10

Total

 

1,154.4

 

1,124.8

Accumulated depreciation and amortization

 

(771.8)

 

(696.6)

Property and equipment, net

$

382.6

$

428.2

Depreciation expense for the fiscal years ended September 30, 2023, 2022 and 2021 was $152.3 million, $147.0 million, and $143.6 million, respectively. Depreciation is calculated using primarily the straight-line method over the estimated useful lives of the

assets, or in the case of leasehold improvements and capitalized leases, the lesser of the remaining term of the lease or its estimated useful life.