XML 66 R60.htm IDEA: XBRL DOCUMENT v2.4.1.9
Subsequent Events - Narrative (Details) (USD $)
 0 Months Ended
Apr. 01, 2015
director
director_nominee
Mar. 31, 2015
director
Subsequent Event    
Number of directors on the board   8hpp_StockholdersAgreementNumberOfDirectorsOnTheBoard
Subsequent Event    
Subsequent Event    
Number of directors on the board 11hpp_StockholdersAgreementNumberOfDirectorsOnTheBoard
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember		  
Number of director nominees to the board 3hpp_StockholdersAgreementNumberOfDirectorNomineesToTheBoard
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember		  
Lower threshold of equity consideration for 3 nominee designations 50.00%hpp_StockholdersAgreementEquityConsiderationLowerThresholdForThreeNomineeDesignations
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember		  
Number of director nominees able to be designated by sponsor stockholders with equity consideration between 30% and 50% 2hpp_StockholdersAgreementNumberOfDirectorNomineesDesignatedSponsorStockholdersEquityConsiderationThirtyPercentToFiftyPercent
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember		  
Number of director nominees able to be designated by sponsor stockholders with equity consideration between 15% and 30% 1hpp_StockholdersAgreementNumberOfDirectorNomineesDesignatedSponsorStockholdersEquityConsiderationFifteenPercentToThirtyPercent
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember		  
Equity consideration, lower threshold for nominee designations 15.00%hpp_StockholdersAgreementEquityConsiderationLowerThresholdForNomineeDesignations
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember		  
Maximum amount of directors on the board give the presence of one sponsor stockholder 12hpp_StockholdersAgreementMaximumAmountOfDirectorsOnBoardPermittedPresenceOfOneSponsorStockholder
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember		  
Number of nominees permitted to be appointed given sponsor stockholders' right to designate two director nominees 1hpp_StockholdersAgreementNumberOfNomineesPermittedToBeAppointedToCommitteesGivenSponsorStockholdersRightToDesignateTwoDirectorNominees
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember		  
Upper threshold of equity interests for sponsor stockholders' restrictions 10.00%hpp_StockholdersAgreementUpperThresholdOfEquityInterestsForSponsorStockholdersRestrictions
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember		  
Percent of covered securities released from restrictions after November 2015 50.00%hpp_StockholdersAgreementPercentOfCoveredSecuritiesReleasedFromRestrictionsTrancheOne
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember		  
Percent of covered securities released from restrictions after March 2016 50.00%hpp_StockholdersAgreementPercentOfCoveredSecuritiesReleasedFromRestrictionsTrancheTwo
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember		  
Period following written consent of termination of board nomination rights for release of restrictions on covered securities 30 days  
Aggregate maximum common stock issuable without written consent from sponsor stockholders 16,843,028hpp_StockholdersAgreementAggregateMaximumCommonStockIssuableWithoutWrittenConsentFromSponsorStockholders
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember		  
Upper threshold of sponsor stockholders' equity consideration to maintain proxy voting 15.00%hpp_StockholdersAgreementUpperThresholdOfSponsorStockholdersEquityConsiderationToMaintainProxyVoting
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember		  
Holding period for redemption of units and grants 14 months  
Number of shares used in exchange valuation 1hpp_StockholdersAgreementNumberOfSharesUsedInExchangeValuation
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember		  
Minimum period between qualified offerings 120 days  
Qualified offerings, minimum amount $ 50,000,000hpp_RegistrationRightsAgreementQualifiedOfferingsMinimumAmount
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember		  
Upper threshold for sponsor stockholders' equity consideration at which company cannot consummate significant transactions 9.80%hpp_StockholdersAgreementUpperThresholdForSponsorStockholdersEquityConsiderationAtWhichCompanyCannotConsummateSignificantTransactions
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember		  
Maximum aggregate value of units for redemption $ 50,000,000hpp_StockholdersAgreementMaximumAggregateValueOfUnitsForRedemption
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember		  
Adjusted maximum aggregate common interests for sponsor stockholders 17,707,056hpp_StockholdersAgreementAdjustedMaximumAggregateCommonInterestsForSponsorStockholders
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember		  
Maximum tenant ownership allowable for sponsor stockholders to reach excepted holder limit, company excluding Market street 9.90%hpp_StockholdersAgreementMaximumTenantOwnershipAllowableForSponsorStockholdersToReachExceptedHolderLimitOverallCompanyExcludingMarketStreet
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember		  
Maximum tenant ownership allowable for sponsor stockholders to reach excepted holder limit, Market street 5.45%hpp_StockholdersAgreementMaximumTenantOwnershipAllowableForSponsorStockholdersToReachExceptedHolderLimitMarketStreet
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember		  
Maximum tenant ownership allowable for sponsor stockholders to reach excepted holder limit, minimum ownership percentage after exclusions 2.00%hpp_StockholdersAgreementMaximumTenantOwnershipAllowableForSponsorStockholdersToReachExceptedHolderLimitMinimumOwnershipPercentageAfterExclusions
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember		  
Maximum rental income expected to be produced by tenants allowable for sponsor stockholders to reach excepted holder limit, company excluding Market street 0.50%hpp_StockholdersAgreementMaximumRentalIncomeExpectedToBeProducedByTenantsAllowableForSponsorStockholdersToReachExceptedHolderLimitOverallCompanyExcludingMarketStreet
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember		  
Maximum rental income expected to be produced by tenants allowable for sponsor stockholders to reach excepted holder limit, Market street 0.50%hpp_StockholdersAgreementMaximumRentalIncomeExpectedToBeProducedByTenantsAllowableForSponsorStockholdersToReachExceptedHolderLimitMarketStreet
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember