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Waltham and Lexington Lease Arrangements (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2012
Real Estate Properties [Line Items]      
Operating Leases, Rent Expense $ 14,151us-gaap_LeaseAndRentalExpense $ 11,720us-gaap_LeaseAndRentalExpense $ 10,083us-gaap_LeaseAndRentalExpense
Waltham Lease [Member]      
Real Estate Properties [Line Items]      
Operating Leases, Rent Expense, Minimum Rentals 119,593us-gaap_OperatingLeasesRentExpenseMinimumRentals
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= vprt_WalthamLeaseMember
   
Construction in Progress, Gross 18,117us-gaap_ConstructionInProgressGross
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= vprt_WalthamLeaseMember
   
Operating Leases, Rent Expense $ 875us-gaap_LeaseAndRentalExpense
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= vprt_WalthamLeaseMember