Significant Accounting Policies - Summary of Expenses in Special Items (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Disclosure Significant Accounting Policies Summary Of Expenses In Special Items [Abstract]
Impairment/loss on disposal of assets	$ 9.7	$ 0.3
Consulting and professional fees	15.0	26.9
Employee severance and retention	0.9	(0.3)
Dedicated project personnel	10.9	5.4
Certain R&D agreements	4.5
Relocated facilities	0.7	1.3
Certain litigation matters		(3.8)
Contract terminations	1.0	0.5
Contingent consideration adjustments	0.5	0.3
Accelerated software amortization	1.5	1.5
Other	1.2	1.4
Special items	$ 45.9	$ 33.5