Components of Corporate Restructuring and Other Reorganization Charges from Acquisition of S1 (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012
Restructuring Cost and Reserve [Line Items]
Beginning balance
Additional restructuring charges incurred	6,239
Amounts paid during the period	(894)
Other	31	[1]
Ending balance	$ 5,376

[1] Other includes the impact of foreign currency translation.