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Component: (Network and Table)
Network
2406404 - Disclosure - Fair Value of Financial Instruments - Schedule of Changes in Level 3 Financial Assets (Detail)
(http://www.broadridge.com/role/FairValueOfFinancialInstrumentsScheduleOfChangesInLevel3FinancialAssetsDetail)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0001383312 (http://www.sec.gov/CIK)
Fair Value Disclosures [Abstract]Period [Axis]
2015-07-01 - 2016-06-30
2014-07-01 - 2015-06-30
Fair Value Disclosures [Abstract]
 
 
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
 
 
Beginning balance
1,100,000  
1,100,000  
Net realized/unrealized gains (losses)
0  
0  
Purchases
0  
0  
Transfers in (out) of Level 3
0  
0  
Ending balance
1,100,000  
 
1,100,000