Changes in Redeemable Noncontrolling Interest Related to Acquisition Copal (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012		Dec. 31, 2011
Redeemable Noncontrolling Interest [Line Items]
Beginning balance	$ 60.5
Fair value at date of acquisition			68.0
Adjustment due to right of offset for UTPs	6.8	[1]	(6.8)	[1]
Net earnings	3.6		1.0
FX translation	1.6		(1.7)
Adjustment to redemption value	3.4
Ending balance	72.3		60.5
Redeemable Noncontrolling Interests
Redeemable Noncontrolling Interest [Line Items]
Distributions	$ (3.6)

[1] Relates to an adjustment for the right of offset pursuant to the Copal acquisition agreement whereby the amount due to the sellers under the put/call arrangement is reduced by the amount of UTPs that the Company may be required to pay. See Note 7 for further detail on this arrangement.