Commitments and Contingencies (Contingencies) (Details) Plaintiff in Thousands				1 Months Ended
	Oct. 14, 2016 USD ($)	Dec. 17, 2015 USD ($)	Jun. 09, 2015 Plaintiff	Mar. 31, 2015 employee	Sep. 27, 2016 USD ($)	May 12, 2016	Oct. 07, 2015 USD ($)
Civil Complaint Against Eric Pulier
Loss Contingencies [Line Items]
Former employee under investigation | employee				2
Civil Complaint Against Eric Pulier | Pending Litigation
Loss Contingencies [Line Items]
Gain contingency, amount sought							$ 98,000,000
Civil Complaint Against Eric Pulier | Settled Litigation
Loss Contingencies [Line Items]
Gain contingency, amount sought					$ 98,000,000
SEC settlement related charges	$ 800,000	$ 16,500,000
Minimal amounts of bribes received by defendant					630,000
Revenue threshold maintained in fraudulent transactions with defendant					20,000,000
Earnout Payout earned due to fraudulent transactions					$ 30,000,000
Strauch and Colby v. Computer Sciences Corporation | Pending Litigation
Loss Contingencies [Line Items]
Number of system administrators for class action, more than | Plaintiff			4
CSC Agility Platform, Inc. | Civil Complaint Against Eric Pulier | Settled Litigation
Loss Contingencies [Line Items]
Loss contingency, damages awarded, legal fees percentage						80.00%