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Accounts Payable and Accrued Expenses
3 Months Ended
Mar. 31, 2018
Payables And Accruals [Abstract]  
Accounts Payable and Accrued Expenses

6.  Accounts Payable and Accrued Expenses

Accounts payable and accrued expenses at March 31, 2018 and December 31, 2017 are summarized as follows:

 

($ in millions)

 

March 31, 2018

 

 

December 31, 2017

 

Trade accounts payable

 

$

253.8

 

 

$

204.9

 

Employee-related expenses

 

 

48.0

 

 

 

59.7

 

Accrued vacation

 

 

25.5

 

 

 

23.8

 

Miscellaneous accrued expenses

 

 

75.8

 

 

 

87.4

 

Total

 

$

403.1

 

 

$

375.8