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subsequent events (Details)
In Thousands, unless otherwise specified
12 Months Ended 12 Months Ended 3 Months Ended
Mar. 31, 2014
Jun. 30, 2015
Fotoknudsen AS [Member]
USD ($)
Jun. 30, 2015
Fotoknudsen AS [Member]
EUR (€)
Jul. 01, 2014
Fotoknudsen AS [Member]
Jun. 30, 2015
Printi LLC [Member]
USD ($)
Aug. 07, 2014
Printi LLC [Member]
Mar. 31, 2015
Exagroup SAS [Member]
EUR (€)
Mar. 02, 2015
Exagroup SAS [Member]
Subsequent Event [Line Items]                
Percentage of Voting Interests Acquired       100.00%us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired
/ us-gaap_BusinessAcquisitionAxis
= vprt_FotoknudsenASMember
      70.00%us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired
/ us-gaap_BusinessAcquisitionAxis
= vprt_ExagroupSASMember
Business Acquisition, Cash Paid   $ 19,224us-gaap_PaymentsToAcquireBusinessesGross
/ us-gaap_BusinessAcquisitionAxis
= vprt_FotoknudsenASMember
€ 14,045us-gaap_PaymentsToAcquireBusinessesGross
/ us-gaap_BusinessAcquisitionAxis
= vprt_FotoknudsenASMember
      € 91,500us-gaap_PaymentsToAcquireBusinessesGross
/ us-gaap_BusinessAcquisitionAxis
= vprt_ExagroupSASMember
 
Payments to Acquire Interest in a Variable Interest         5,360us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates
/ us-gaap_BusinessAcquisitionAxis
= vprt_PrintiLLCMember
     
Capital contribution to subsidiary         $ 2,850vprt_Capitalcontributiontosubsidiary
/ us-gaap_BusinessAcquisitionAxis
= vprt_PrintiLLCMember
     
Ownership percentage 45.00%us-gaap_EquityMethodInvestmentOwnershipPercentage         41.60%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_BusinessAcquisitionAxis
= vprt_PrintiLLCMember
   
Option period to increase ownership         9 years