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Related Party Transactions - Narrative (Details) | 1 Months Ended | 6 Months Ended
--- | --- | ---
Feb. 28, 2015 USD ($) ft² | Jun. 30, 2015 USD ($) ft² | Jun. 30, 2014 USD ($)
Related Party Transaction [Line Items] |  |  |
Monthly rent obligation |  | $ 12,360 |
FJM Investments, LLC |  |  |
Related Party Transaction [Line Items] |  |  |
Area of real estate property | ft² |  | 3,707 |
Blackstone Real Estate Partners |  |  |
Related Party Transaction [Line Items] |  |  |
Area of real estate property | ft² | 40,120 | 20,059 |
Lease rent expense |  | $ 400,000 | $ 400,000
Minimum Annual Rent | $ 13,900,000 |  |

X
- Definition Related Party Transaction, Monthly Rent Obligation from Subtenant + References No definition available. + Details
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Namespace Prefix: | hpp_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Area of a real estate property. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | num:areaItemType
Balance Type: | na
Period Type: | instant

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- Definition Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition This element represents the payments that the lessee is obligated to make or can be required to make in connection with a property under the terms of an agreement classified as an operating lease, excluding contingent rentals and a guarantee by the lessee of the lessor's debt and the lessee's obligation to pay (apart from the rental payments) executory costs such as insurance, maintenance, and taxes. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41499-112717 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 25 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=7661868&loc=d3e34039-112682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 55 -Paragraph 40 -Subparagraph (Note 3) -URI http://asc.fasb.org/extlink&oid=6584154&loc=d3e38371-112697 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
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- Details
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Namespace Prefix: |
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- Details
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