SIGNIFICANT ACCOUNTING POLICIES - Summary of Expenses in Special Items (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Business And Significant Accounting Policies [Line Items]
Impairment of assets	$ 14.6	$ 8.4	$ 11.4
Consulting and professional fees	90.1	26.0	4.9
Employee severance and retention, including share-based compensation acceleration	8.2	23.1	6.7
Dedicated project personnel	15.1	3.2	2.0
Information technology integration		0.5	0.1
Relocated facilities	1.8		0.2
Distributor acquisitions	0.8	2.0	1.9
Certain litigation matters	13.7	0.1	(0.3)
Contract terminations	6.6	6.3	3.9
Contingent consideration adjustments	(2.8)
Accelerated software amortization	4.5
Other	2.8	5.6	3.9
Special items	$ 155.4	$ 75.2	$ 34.7