v3.2.0.727
Acquisitions - Additional Information (Detail)
$ in Millions
 1 Months Ended 3 Months Ended 12 Months Ended
Jun. 30, 2015
USD ($)
Apr. 30, 2015
USD ($)
Mar. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Feb. 28, 2014
USD ($)
Jul. 31, 2013
USD ($)
Jun. 30, 2014
USD ($)
Sep. 30, 2013
USD ($)
Entity
Jun. 30, 2015
USD ($)
Entity
Jun. 30, 2014
USD ($)
Entity
Jun. 30, 2013
USD ($)
Entity
Loans At Acquisition Date [Line Items]                      
Number of acquisitions affected by change in fair value of contingent consideration | Entity               1      
Increase (decrease) in fair value of contingent consideration               $ (3.3)      
Number of businesses acquired | Entity                     0
Purchase price, net of cash acquired                 $ 202.9 $ 96.9 $ 0.0
Contingent consideration obligations: $ 15.7           $ 1.3   15.7 1.3  
Goodwill acquired 970.5           856.1   970.5 856.1  
Direxxis LLC [Member]                      
Loans At Acquisition Date [Line Items]                      
Aggregate purchase price     $ 34.5                
Purchase price, net of cash acquired     33.3                
Contingent consideration obligations:     $ 1.2                
Contingent consideration payment period     3 years                
Contingent consideration maximum potential pay out     $ 5.5                
Net assets/(liabilities) acquired/assumed     0.3                
Goodwill acquired 20.6   20.6           20.6    
Intangible assets acquired     $ 13.6                
Direxxis LLC [Member] | Customer Relationships [Member]                      
Loans At Acquisition Date [Line Items]                      
Finite-lived intangible assets, remaining amortization period, years     10 years                
Direxxis LLC [Member] | Software Technology [Member]                      
Loans At Acquisition Date [Line Items]                      
Finite-lived intangible assets, remaining amortization period, years     5 years                
WTRIS [Member]                      
Loans At Acquisition Date [Line Items]                      
Aggregate purchase price   $ 73.2                  
Purchase price, net of cash acquired   61.0                  
Contingent consideration obligations:   $ 12.2                  
Contingent consideration payment period   24 months                  
Net assets/(liabilities) acquired/assumed   $ 4.8                  
Goodwill acquired 39.1 39.1             39.1    
Intangible assets acquired   $ 29.3                  
WTRIS [Member] | Customer Relationships [Member]                      
Loans At Acquisition Date [Line Items]                      
Finite-lived intangible assets, remaining amortization period, years   10 years                  
WTRIS [Member] | Software Technology [Member]                      
Loans At Acquisition Date [Line Items]                      
Finite-lived intangible assets, remaining amortization period, years   7 years                  
FSCI [Member]                      
Loans At Acquisition Date [Line Items]                      
Purchase price, net of cash acquired 77.0                    
Net assets/(liabilities) acquired/assumed 3.8               3.8    
Goodwill acquired 38.8               38.8    
Intangible assets acquired $ 34.4               34.4    
FSCI [Member] | Customer Relationships [Member]                      
Loans At Acquisition Date [Line Items]                      
Finite-lived intangible assets, remaining amortization period, years 10 years                    
TwoFour Systems [Member]                      
Loans At Acquisition Date [Line Items]                      
Aggregate purchase price       $ 32.7              
Purchase price, net of cash acquired       31.6              
Contingent consideration obligations:       $ 1.1              
Contingent consideration payment period       3 years              
Contingent consideration maximum potential pay out       $ 8.3              
Net assets/(liabilities) acquired/assumed       (3.3)              
Goodwill acquired $ 25.5     25.5         25.5    
Intangible assets acquired       $ 10.5              
TwoFour Systems [Member] | Customer Relationships [Member]                      
Loans At Acquisition Date [Line Items]                      
Finite-lived intangible assets, remaining amortization period, years       10 years              
TwoFour Systems [Member] | Software Technology [Member]                      
Loans At Acquisition Date [Line Items]                      
Finite-lived intangible assets, remaining amortization period, years       7 years              
Bonaire [Member]                      
Loans At Acquisition Date [Line Items]                      
Increase (decrease) in fair value of contingent consideration             0.8   0.3    
Purchase price, net of cash acquired           $ 37.6          
Contingent consideration obligations: 1.2         $ 0.5 1.3   1.2 $ 1.3  
Contingent consideration payment period           3 years          
Net assets/(liabilities) acquired/assumed           $ (1.5)          
Goodwill acquired 29.0         29.0     29.0    
Intangible assets acquired           $ 10.1          
Payment of contingent consideration                 0.4    
Bonaire [Member] | Customer Relationships [Member]                      
Loans At Acquisition Date [Line Items]                      
Finite-lived intangible assets, remaining amortization period, years           10 years          
Bonaire [Member] | Software Technology [Member]                      
Loans At Acquisition Date [Line Items]                      
Finite-lived intangible assets, remaining amortization period, years           7 years          
Emerald [Member]                      
Loans At Acquisition Date [Line Items]                      
Purchase price, net of cash acquired         $ 59.8            
Net assets/(liabilities) acquired/assumed         (2.1)            
Goodwill acquired 41.1       41.1       $ 41.1    
Intangible assets acquired         $ 20.8            
Emerald [Member] | Customer Relationships [Member]                      
Loans At Acquisition Date [Line Items]                      
Finite-lived intangible assets, remaining amortization period, years         7 years            
Investor Communication Solutions [Member]                      
Loans At Acquisition Date [Line Items]                      
Number of businesses acquired | Entity                 3 2  
Goodwill acquired 681.4           583.1   $ 681.4 $ 583.1  
Global Technology And Operations [Member]                      
Loans At Acquisition Date [Line Items]                      
Number of businesses acquired | Entity                 1    
Goodwill acquired $ 289.1           $ 273.0   $ 289.1 $ 273.0