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Shareholders Equity (Details Textuals) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012	Dec. 28, 2013	Dec. 28, 2012
Share purchases [Abstract]
Purchase of shares, Value	$ 42,016us-gaap_TreasuryStockValueAcquiredCostMethod	$ 64,351us-gaap_TreasuryStockValueAcquiredCostMethod	$ (309,701)us-gaap_TreasuryStockValueAcquiredCostMethod
Treasury Stock, Shares, Acquired	1,044,136us-gaap_TreasuryStockSharesAcquired	1,850,746us-gaap_TreasuryStockSharesAcquired
Payments related to tax withholding for share-based compensation	9,430us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation	3,556us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation	4,149us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation
Share-based awards [Abstract]
Fair market value of ordinary shares	100.00%vprt_FairMarketValueOfOrdinaryShares
Award expiration period	10 years
Exchange rate for restricted shares of other share based award	1.56vprt_StockRepurchaseProgramExchangeRateForRestrictedSharesOfOtherShareBasedAward
Exchange rate for ordinary shares	1vprt_StockRepurchaseProgramExchangeRateForOrdinaryShares
Number of additional plans available	2vprt_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalPlansAvailable
Capital shares reserved for future issuance	2,752,919us-gaap_CommonStockCapitalSharesReservedForFutureIssuance
Restricted Share Units [Abstract]
Compensation cost	27,786us-gaap_AllocatedShareBasedCompensationExpense	32,928us-gaap_AllocatedShareBasedCompensationExpense	25,413us-gaap_AllocatedShareBasedCompensationExpense
Restricted Share Awards [Abstract]
Restricted stock award, net of forfeitures			0us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures
Share-based Compensation [Abstract]
Compensation cost	27,786us-gaap_AllocatedShareBasedCompensationExpense	32,928us-gaap_AllocatedShareBasedCompensationExpense	25,413us-gaap_AllocatedShareBasedCompensationExpense
Allocation of recognized period costs, capitalized amount	254us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	130us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	101us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount
Unrecognized share based compensation	40,443us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
Total compensation cost not yet recognized, period for recognition	2 years 8 months
Employee Stock Option [Member]
Share options [Abstract]
Service Period	Options generally vest quarterly over 3 years for non-employee directors and 25% after one year and quarterly for 12 quarters thereafter for employees
Total intrinsic value of options exercised	14,860us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember	6,648us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember	1,900us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember
Restricted Share Units [Abstract]
Service Period	Options generally vest quarterly over 3 years for non-employee directors and 25% after one year and quarterly for 12 quarters thereafter for employees
Restricted Stock Units [Member]
Share options [Abstract]
Service Period	RSUs generally vest quarterly for two to three years for non-employee supervisory board directors and 25% after one year and quarterly for 12 quarters thereafter for employees
Restricted Share Units [Abstract]
Service Period	RSUs generally vest quarterly for two to three years for non-employee supervisory board directors and 25% after one year and quarterly for 12 quarters thereafter for employees
Grants in period	225,000vprt_PerformancebasedRSUsoutstanding / us-gaap_AwardTypeAxis = vprt_RestrictedStockUnitsMember
Grants in period not probale of achievement	180,000vprt_PerformancebasedRSUsnotprobable / us-gaap_AwardTypeAxis = vprt_RestrictedStockUnitsMember
Maximum compensation for probabilty awards	7,169vprt_Maximumcompensationforprobabiltyawards / us-gaap_AwardTypeAxis = vprt_RestrictedStockUnitsMember
Total fair value of shares vested	20,629us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue / us-gaap_AwardTypeAxis = vprt_RestrictedStockUnitsMember	12,397us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue / us-gaap_AwardTypeAxis = vprt_RestrictedStockUnitsMember	14,047us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue / us-gaap_AwardTypeAxis = vprt_RestrictedStockUnitsMember
Restricted Share Awards [Member]
Restricted Share Units [Abstract]
Weighted average fair value of restricted share units granted	$ 0.00us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_AwardTypeAxis = vprt_RestrictedShareAwardsMember
Restricted Share Awards [Abstract]
Award vesting, percentage vested					50.00%vprt_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingInitialPercentageVested / us-gaap_AwardTypeAxis = vprt_RestrictedShareAwardsMember
Award vesting, final percentage vested				50.00%vprt_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingFinalPercentageVested / us-gaap_AwardTypeAxis = vprt_RestrictedShareAwardsMember
Restricted stock award, net of forfeitures	15,843us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures / us-gaap_AwardTypeAxis = vprt_RestrictedShareAwardsMember
Ordinary Shares [Member]
Share purchases [Abstract]
Share repurchase program authorized shares	6,500,000us-gaap_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased / us-gaap_StatementClassOfStockAxis = us-gaap_CommonStockMember
Remaining number of shares authorized to be repurchased	5,532,126us-gaap_StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased / us-gaap_StatementClassOfStockAxis = us-gaap_CommonStockMember
Treasury Shares [Member]
Share purchases [Abstract]
Purchase of shares, Value	42,016us-gaap_TreasuryStockValueAcquiredCostMethod / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember	64,351us-gaap_TreasuryStockValueAcquiredCostMethod / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember	309,701us-gaap_TreasuryStockValueAcquiredCostMethod / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember
Treasury Stock, Shares, Acquired	1,044,000us-gaap_TreasuryStockSharesAcquired / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember	1,851,000us-gaap_TreasuryStockSharesAcquired / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember	9,901,000us-gaap_TreasuryStockSharesAcquired / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember
Restricted Share Awards [Abstract]
Restricted stock award, net of forfeitures			$ 10,754us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember

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Amount of cash outflow to satisfy an employee's income tax withholding obligation as part of a net-share settlement of a share-based award.

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Description of award terms as to how many shares or portion of an award are no longer contingent on satisfaction of either a service condition, market condition or a performance condition, thereby giving the employee the legal right to convert the award to shares, to sell the shares, and be entitled to the cash proceeds of such sale. For example, vesting may be expressed as being 25 percent of the shares under option on each anniversary of the grant date.

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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