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Equity - 6.25% Series A Cumulative Redeemable Preferred Units of the Operating Partnership Narrative (Details) (6.25% series A cumulative redeemable preferred units of the Operating Partnership, USD $) | 3 Months Ended | 12 Months Ended
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Mar. 31, 2015 | Dec. 31, 2014
6.25% series A cumulative redeemable preferred units of the Operating Partnership |  |
Class of Stock |  |
Shares outstanding of preferred stock | 407,066 us-gaap_PreferredStockSharesOutstanding / us-gaap_StatementClassOfStockAxis = hpp_SeriesCumulativeRedeemablePreferredUnitsOfOperatingPartnershipMember |
Interest rate of preferred stock | 6.25%us-gaap_PreferredStockDividendRatePercentage / us-gaap_StatementClassOfStockAxis = hpp_SeriesCumulativeRedeemablePreferredUnitsOfOperatingPartnershipMember | 6.25%us-gaap_PreferredStockDividendRatePercentage / us-gaap_StatementClassOfStockAxis = hpp_SeriesCumulativeRedeemablePreferredUnitsOfOperatingPartnershipMember
Liquidation preference of preferred stock (dollars per share) | $ 25 us-gaap_PreferredStockLiquidationPreference / us-gaap_StatementClassOfStockAxis = hpp_SeriesCumulativeRedeemablePreferredUnitsOfOperatingPartnershipMember |

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- Definition The percentage rate used to calculate dividend payments on preferred stock. + References No definition available. + Details
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- Definition The per share liquidation preference (or restrictions) of nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) that has a preference in involuntary liquidation considerably in excess of the par or stated value of the shares. The liquidation preference is the difference between the preference in liquidation and the par or stated values of the share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21484-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(d)(1)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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- Definition Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.28) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29 -Article 5 + Details
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