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Accounts Receivable-Net (Tables)
12 Months Ended
Sep. 30, 2015
Accounts Receivable-Net  
Schedule of net accounts receivable

                                                                                                                                                                                    

 

 

Fiscal Year Ended

 

 

 

September 30,
2015

 

September 30,
2014

 

 

 

(in millions)

 

Billed

 

$

2,426.2

 

$

1,248.4

 

Unbilled

 

 

2,099.8

 

 

1,214.8

 

Contract retentions

 

 

379.6

 

 

263.9

 

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Total accounts receivable—gross

 

 

4,905.6

 

 

2,727.1

 

Allowance for doubtful accounts

 

 

(64.1

)

 

(72.1

)

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​  

​  

Total accounts receivable—net

 

$

4,841.5

 

$

2,655.0

 

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