Legal Proceedings - Additional Information (Detail) (USD $)	1 Months Ended				3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended							1 Months Ended
	Aug. 31, 2012	Jul. 31, 2008 LegalMatter	Mar. 31, 2012 Timekeeping Contract with City of New York	Sep. 30, 2004 Stockholder Derivative Cases LegalMatter	Apr. 30, 2011 Stockholder Derivative Cases LegalMatter	Oct. 31, 2014 Demand Letter for CityTime LegalMatter	Apr. 30, 2012 Securities Class Actions executive LegalMatter	Oct. 31, 2014 Greek Government Contract	Jul. 31, 2013 Greek Government Contract	Nov. 30, 2008 Greek Government Contract Invoice for Undisputed Portion of Contract	Oct. 31, 2014 Greek Government Contract Value Added Taxes	Oct. 31, 2014 Greek Government Contract Letters of Credit Relating to Delivery	Oct. 31, 2014 Greek Government Contract Standby Letters of Credit	Oct. 31, 2014 Greek Government Contract Letters of Credit Related System Support and Maintenance Letters of Credit Relating to Delivery	Oct. 31, 2014 Nuclear Regulatory Commission False Claims Act Claims	Oct. 31, 2008 Nuclear Regulatory Commission False Claims Act Claims	Jul. 31, 2008 Nuclear Regulatory Commission False Claims Act Claims	Jun. 30, 2014 Data Privacy Litigation plaintiff	May 31, 2014 Data Privacy Litigation plaintiff
Legal Proceedings [Line Items]
Cash settlement payment			$ 500,000,000												$ 2,000,000
Period to dismiss criminal count (in years)			3 years
Term of administrative agreement (in years)	5 years
DPA provides that the monitor will serve for a period (in years)	3 years
Number of plaintiffs																		2	2
Number of lawsuits					6		3
Number of lawsuits, withdrawn				2	2	1	1
Number of false claims		2
Number of cases reviewed by the board						4
Number of lawsuits, consolidated					4	4	2
Number of former Chief Executive Officers							2
Contracts receivable										17,000,000	32,000,000
Arbitral award								24,000,000	49,000,000
Recorded losses								123,000,000
Receivables relating to value added taxes											14,000,000
Amount outstanding														2,000,000
Letter of credit available to the company												18,000,000	20,000,000
Judgment rescinded on appeal																585,000	2,000,000
Total damage																$ 7,000,000