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Stock-based Compensation Plans and Awards - Narrative (Details) (USD $)
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11 Months Ended |
12 Months Ended |
1 Months Ended |
3 Months Ended |
1 Months Ended |
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Dec. 31, 2013
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Dec. 31, 2014
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Jan. 31, 2013
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Sep. 30, 2013
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Mar. 31, 2012
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Apr. 30, 2013
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Dec. 31, 2013
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Mar. 01, 2012
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| Stock-based Compensation Plans and Awards |
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| Shares of common stock previously reserved but unissued under the 2004 Plan (in shares) |
9,048,200us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
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18,184,195us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
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9,048,200us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
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| Stock-based compensation expense |
$ 40,041,000us-gaap_AllocatedShareBasedCompensationExpense
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$ 87,055,000us-gaap_AllocatedShareBasedCompensationExpense
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$ 25,500,000us-gaap_AllocatedShareBasedCompensationExpense
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| ESPP shares issued (in shares) |
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142,265us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans
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| Weighted-average period for recognition of unrecognized compensation |
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4 years
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| Unvested restricted shares repurchased (in shares) |
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0p_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRepurchased
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| Number of shares early exercised (in shares) |
0p_StockIssuedDuringPeriodSharesStockOptionsEarlyExercised
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0p_StockIssuedDuringPeriodSharesStockOptionsEarlyExercised
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| Options granted (in shares) |
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349,500us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
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| Share price (in dollars per share) |
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$ 28.17us-gaap_SharePrice
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25.00us-gaap_SharePrice
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| Capitalized cost related to internal use software and website development costs |
700,000us-gaap_CapitalizedComputerSoftwareNet
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1,300,000us-gaap_CapitalizedComputerSoftwareNet
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0us-gaap_CapitalizedComputerSoftwareNet
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700,000us-gaap_CapitalizedComputerSoftwareNet
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| Stock options |
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| Stock-based Compensation Plans and Awards |
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| Stock-based compensation expense |
10,600,000us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_AwardTypeAxis
= p_EmployeeAndNonEmployeeStockOptionsMember
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14,700,000us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_AwardTypeAxis
= p_EmployeeAndNonEmployeeStockOptionsMember
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14,900,000us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_AwardTypeAxis
= p_EmployeeAndNonEmployeeStockOptionsMember
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| Weighted-average fair value of stock option granted (in dollars per share) |
$ 9.34us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= p_EmployeeAndNonEmployeeStockOptionsMember
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$ 19.74us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= p_EmployeeAndNonEmployeeStockOptionsMember
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$ 5.91us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= p_EmployeeAndNonEmployeeStockOptionsMember
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| Total grant date fair value of stock options vested |
9,100,000p_ShareBasedCompensationArrangementByShareBasedPaymentAwardTotalGrantDateFairValue
/ us-gaap_AwardTypeAxis
= p_EmployeeAndNonEmployeeStockOptionsMember
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16,000,000p_ShareBasedCompensationArrangementByShareBasedPaymentAwardTotalGrantDateFairValue
/ us-gaap_AwardTypeAxis
= p_EmployeeAndNonEmployeeStockOptionsMember
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13,000,000p_ShareBasedCompensationArrangementByShareBasedPaymentAwardTotalGrantDateFairValue
/ us-gaap_AwardTypeAxis
= p_EmployeeAndNonEmployeeStockOptionsMember
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| Aggregate intrinsic value of options exercised |
93,800,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
/ us-gaap_AwardTypeAxis
= p_EmployeeAndNonEmployeeStockOptionsMember
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169,200,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
/ us-gaap_AwardTypeAxis
= p_EmployeeAndNonEmployeeStockOptionsMember
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84,900,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
/ us-gaap_AwardTypeAxis
= p_EmployeeAndNonEmployeeStockOptionsMember
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| Total fair value of options vested |
9,400,000us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1
/ us-gaap_AwardTypeAxis
= p_EmployeeAndNonEmployeeStockOptionsMember
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16,500,000us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1
/ us-gaap_AwardTypeAxis
= p_EmployeeAndNonEmployeeStockOptionsMember
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13,100,000us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1
/ us-gaap_AwardTypeAxis
= p_EmployeeAndNonEmployeeStockOptionsMember
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| Options granted (in shares) |
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349,500us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= p_EmployeeAndNonEmployeeStockOptionsMember
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| Common stock exercise price (in dollars per share) |
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$ 35.61us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
/ us-gaap_AwardTypeAxis
= p_EmployeeAndNonEmployeeStockOptionsMember
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| Stock option with market and service conditions | Mr. Joseph Kennedy |
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| Stock-based Compensation Plans and Awards |
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| Vesting term |
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4 years
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4 years
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| Stock-based compensation expense |
600,000us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_AwardTypeAxis
= p_StockOptionWithMarketAndServiceConditionsMember
/ us-gaap_TitleOfIndividualAxis
= us-gaap_ChiefExecutiveOfficerMember
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(1,700,000)us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_AwardTypeAxis
= p_StockOptionWithMarketAndServiceConditionsMember
/ us-gaap_TitleOfIndividualAxis
= us-gaap_ChiefExecutiveOfficerMember
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| Options granted (in shares) |
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800,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= p_StockOptionWithMarketAndServiceConditionsMember
/ us-gaap_TitleOfIndividualAxis
= us-gaap_ChiefExecutiveOfficerMember
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| Common stock exercise price (in dollars per share) |
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$ 10.63us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
/ us-gaap_AwardTypeAxis
= p_StockOptionWithMarketAndServiceConditionsMember
/ us-gaap_TitleOfIndividualAxis
= us-gaap_ChiefExecutiveOfficerMember
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| Period of time that the trailing weighted average stock price must exceed a certain price for the stock award to vest, prior to July, 2017 |
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60 days
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| Share price that must be obtained for the stock award to vest prior to July, 2017 (in dollars per share) |
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$ 21.00p_ShareBasedCompensationArrangementByShareBasedPaymentAwardMinimumSharePriceForStockAwardToVest
/ us-gaap_AwardTypeAxis
= p_StockOptionWithMarketAndServiceConditionsMember
/ us-gaap_TitleOfIndividualAxis
= us-gaap_ChiefExecutiveOfficerMember
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| Share price, under a sale of the entity, that must be obtained for the stock award to vest prior to July, 2017 (in dollars per share) |
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$ 21.00p_ShareBasedCompensationArrangementByShareBasedPaymentAwardMinimumSharePriceForStockAwardToVestUnderSaleOfEntity
/ us-gaap_AwardTypeAxis
= p_StockOptionWithMarketAndServiceConditionsMember
/ us-gaap_TitleOfIndividualAxis
= us-gaap_ChiefExecutiveOfficerMember
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| Stock option with market and service conditions | Mr. Joseph Kennedy | Monte-Carlo simulation option pricing model |
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| Stock-based Compensation Plans and Awards |
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| Weighted-average fair value of stock option granted (in dollars per share) |
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$ 6.08us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= p_StockOptionWithMarketAndServiceConditionsMember
/ us-gaap_TitleOfIndividualAxis
= us-gaap_ChiefExecutiveOfficerMember
/ us-gaap_ValuationTechniqueAxis
= p_MonteCarloSimulationOptionPricingModelMember
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| Expected life used to value non-statutory stock options award using Monte Carlo simulation (in years) |
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10 years
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| Risk-free interest rate used to value non-statutory stock options award using Monte Carlo simulation |
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2.33%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
/ us-gaap_AwardTypeAxis
= p_StockOptionWithMarketAndServiceConditionsMember
/ us-gaap_TitleOfIndividualAxis
= us-gaap_ChiefExecutiveOfficerMember
/ us-gaap_ValuationTechniqueAxis
= p_MonteCarloSimulationOptionPricingModelMember
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| Expected volatility used to value non-statutory stock options award using Monte Carlo simulation |
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70.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
/ us-gaap_AwardTypeAxis
= p_StockOptionWithMarketAndServiceConditionsMember
/ us-gaap_TitleOfIndividualAxis
= us-gaap_ChiefExecutiveOfficerMember
/ us-gaap_ValuationTechniqueAxis
= p_MonteCarloSimulationOptionPricingModelMember
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| Share price (in dollars per share) |
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$ 10.63us-gaap_SharePrice
/ us-gaap_AwardTypeAxis
= p_StockOptionWithMarketAndServiceConditionsMember
/ us-gaap_TitleOfIndividualAxis
= us-gaap_ChiefExecutiveOfficerMember
/ us-gaap_ValuationTechniqueAxis
= p_MonteCarloSimulationOptionPricingModelMember
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| Employee stock |
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| Stock-based Compensation Plans and Awards |
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| Shares of common stock reserved for the issuance (in shares) |
4,000,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockMember
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4,000,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockMember
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| Percentage of payroll deductions of eligible employees to purchase shares of common stock |
15.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumEmployeeSubscriptionRate
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockMember
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15.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumEmployeeSubscriptionRate
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockMember
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| Maximum amount of payroll deductions eligible employees can use per calendar year |
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25,000p_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumEmployeeSubscription
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockMember
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| Exercise price as a percentage of the fair market value of the common stock |
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85.00%us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockMember
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85.00%us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockMember
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| Stock-based compensation expense |
0us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockMember
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2,100,000us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockMember
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0us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockMember
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| ESPP shares issued (in shares) |
0us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockMember
|
149,378us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockMember
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0us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockMember
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| ESPP purchase price |
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$ 23.95us-gaap_SharesIssuedPricePerShare
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockMember
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| Restricted stock units |
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| Stock-based Compensation Plans and Awards |
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| Vesting term |
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4 years
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| Stock-based compensation expense |
28,900,000us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
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69,900,000us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
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10,400,000us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
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| Weighted-average period for recognition of unrecognized compensation |
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2 years 7 months 7 days
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| Compensation cost not yet recognized |
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197,300,000us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
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| 2011 Plan |
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| Stock-based Compensation Plans and Awards |
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| Shares of common stock reserved for the issuance (in shares) |
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12,000,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
/ us-gaap_PlanNameAxis
= p_EquityIncentivePlan2011Member
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| Shares of common stock previously reserved but unissued under the 2004 Plan (in shares) |
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1,506,424us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
/ us-gaap_PlanNameAxis
= p_EquityIncentivePlan2011Member
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| Annual fixed increase alternative, increase in shares of common stock reserved for issuance (in shares) |
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10,000,000p_ShareBasedCompensationArrangementByShareBasedPaymentAwardAdditionalSharesThatMayBeAuthorizedAnnually
/ us-gaap_PlanNameAxis
= p_EquityIncentivePlan2011Member
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| Annual percentage increase alternative, increase in common stock reserved for issuance as a percentage of common stock outstanding |
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4.00%p_ShareBasedCompensationArrangementByShareBasedPaymentAwardAdditionalSharesThatMayBeAuthorizedAnnuallyPercentage
/ us-gaap_PlanNameAxis
= p_EquityIncentivePlan2011Member
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| Unrecognized compensation cost |
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$ 26,700,000us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions
/ us-gaap_PlanNameAxis
= p_EquityIncentivePlan2011Member
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| Weighted-average period for recognition of unrecognized compensation |
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2 years 10 months 10 days
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| 2011 Plan | Stock options |
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| Stock-based Compensation Plans and Awards |
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| Vesting term |
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4 years
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| 2011 Plan | Stock options | Maximum |
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| Stock-based Compensation Plans and Awards |
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| Expiration term |
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10 years
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