Accounts Payable and Accrued Expenses (Tables)

12 Months Ended

Dec. 31, 2017

Payables And Accruals [Abstract]

Schedule of Accounts Payable and Accrued Expenses

Accounts payable and accrued expenses at December 31, 2017 and December 31, 2016 are summarized as follows:

(in millions)	2017		2016
Trade accounts payable	$	204.9	$	157.7
Employee-related expenses		59.7		28.1
Accrued vacation		23.8		21.8
Miscellaneous accrued expenses		87.4		113.6
	$	375.8	$	321.2