Annual report pursuant to Section 13 and 15(d)

Contingencies (Details)

v2.4.0.8
Contingencies (Details) (USD $)
In Millions, unless otherwise specified
 1 Months Ended 12 Months Ended 21 Months Ended 1 Months Ended 12 Months Ended 3 Months Ended 12 Months Ended
Nov. 30, 2012
Jun. 30, 2004
Jul. 31, 2014
Jun. 30, 2004
Jul. 31, 2014
Indemnification Agreement [Member]
Apr. 22, 2014
Agreement [Member]
Affymetrix Inc [Member]
Jul. 31, 2014
Subpoena [Member]
Minimum [Member]
Jul. 31, 2014
Subpoena [Member]
Maximum [Member]
Apr. 30, 2014
Subpoena [Member]
Jul. 31, 2014
Subpoena [Member]
Jun. 20, 2014
Perkin Elmer [Member]
Contingencies (Details) [Line Items]                      
Gain Contingency, Patents Allegedly Infringed upon, Number   6                  
Number of Licensee Patents     4                
Gain Contingency, Patents Found Not Infringed upon, Number 1                    
Gain Contingency, Unrecorded Amount         $ 48.5            
Gain Contingencies Prejudgement Interest     12.5                
Loss Contingency, Number of Defendants     6                
Loss Contingency, New Claims Filed, Number       6              
Litigation Settlement, Amount           5.1          
Proceeds from Legal Settlements           4.3          
Litigation Settlement, Expense           0.8          
Escrow Deposit                     7.0
Investigation Period                   The time period initially covered by the investigation was from 2004 through 2011.  
Estimated Litigation Settlement Amount                 2.0    
Period Over Which Settlement Amount Has to Be Paid                 5 years    
Estimated Litigation Liability, Current     10.0             0.4  
Estimated Litigation Liability, Noncurrent                   1.6  
Additional Payment of Litigation Settlement Amount                   1.5  
Amount of Additional Capital Receipt Condition for Litigation Settlement             $ 10.0        
Percentage of Additional Payment of Litigation Settlement Amount over Additional Capital Receipt                   20.00%  
Litigation Settlement Period             2004 2014