Facility Closing and Reorganization Costs - Approved Plans and Related Charges (Parenthetical) (Detail) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2014
Restructuring Cost and Reserve [Line Items]
Expected costs	$ 2.8
Facility Closing
Restructuring Cost and Reserve [Line Items]
Charges incurred to date	39.9
Functional Realignment
Restructuring Cost and Reserve [Line Items]
Charges incurred to date	33.1
Field and Functional Reorganization
Restructuring Cost and Reserve [Line Items]
Charges incurred to date	$ 11.3