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Accounts Payable and Accrued Expenses (Tables)
9 Months Ended
Sep. 30, 2016
Payables and Accruals [Abstract]  
Schedule of accounts payable and accrued expenses
Accounts payable and accrued expenses at September 30, 2016 and December 31, 2015 are summarized as follows:
(in millions)
 
September 30,
2016
 
December 31,
2015
Trade accounts payable
 
$
184.3

 
$
268.5

Employee related expenses
 
30.2

 
35.0

Accrued vacation
 
23.4

 
25.1

Miscellaneous accrued expenses
 
112.4

 
107.7

Total
 
$
350.3

 
$
436.3