Commitments and Contingencies (Contingencies) (Details) $ in Thousands		1 Months Ended
	Jun. 09, 2015 Plaintiff	Oct. 31, 2015 USD ($)	Oct. 31, 2014 USD ($)	May. 12, 2015 USD ($)
MERP Claim | Pending Litigation
Loss Contingencies [Line Items]
Damages sought			$ 80,000
Civil Complaint Against Eric Pulier | Pending Litigation
Loss Contingencies [Line Items]
Gain contingency, amount sought				$ 98,000
Strauch and Colby v. Computer Sciences Corporation | Pending Litigation
Loss Contingencies [Line Items]
Number of system administrators for class action, more than | Plaintiff	4,000
U.S. Department of Justice Civil Division v. Computer Sciences Corporation | Settled Litigation | Subsequent Event
Loss Contingencies [Line Items]
Settlement amount		$ 1,350
U.S. Department of Justice Civil Division v. Computer Sciences Corporation | Settled Litigation | Subsequent Event | NetCracker Technology Corp
Loss Contingencies [Line Items]
Settlement amount		$ 11,400