Commitments and Contingencies - Additional Information (Detail) € in Millions, claim in Millions, $ in Millions	1 Months Ended		28 Months Ended
	Aug. 31, 2012 USD ($)	Apr. 30, 2007 EUR (€)	Dec. 31, 2010 USD ($) claim	Sep. 30, 2016 USD ($)	Apr. 30, 2008 EUR (€)
Loss Contingencies [Line Items]
Amount related to unreserved tax-related matters, inclusive of interest				$ 124
Ministry of Justice of Belgium
Loss Contingencies [Line Items]
Loss contingency, damages sought value | €		€ 28.0
Counterclaim against termination of contract | €					€ 18.5
Health Information Management (HIM)
Loss Contingencies [Line Items]
Loss contingency, damages sought value	$ 35
Pharmaceutical Claims
Loss Contingencies [Line Items]
Loss contingency, damages sought value			$ 32
Number of pharmaceutical claims contended by the State to have been paid improperly | claim			3.6