Debt Instrument, Maximum Capacity

No definition available.

Name:	hpp_DebtInstrumentMaximumCapacity
Namespace Prefix:	hpp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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.

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+ Details

Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

+ References

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+ Details

Name:	us-gaap_GainsLossesOnExtinguishmentOfDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The number of real estate properties owned as of the balance sheet date.

+ References

No definition available.

+ Details

Name:	us-gaap_NumberOfRealEstateProperties
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of cash outflow for short-term and long-term debt. Excludes payment of lease obligation.

+ References

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+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	credit
Period Type:	duration

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_SecuredDebtMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=hpp_OfficePortfolioCMBSLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Debt - Narrative (Details)	3 Months Ended		6 Months Ended
Debt - Narrative (Details)	Jun. 30, 2025 USD ($) property	Jun. 30, 2024 USD ($)	Jun. 30, 2025 USD ($) property	Jun. 30, 2024 USD ($)	Dec. 31, 2024 USD ($)
Debt Instrument
Number of properties \| property	54		54
Loss on extinguishment of debt	$ 1,637,000	$ 0	$ 3,495,000	$ 0
Secured debt
Debt Instrument
Joint venture partner debt	2,059,000,000		2,059,000,000		$ 1,752,667,000
Unsecured debt
Debt Instrument
Joint venture partner debt	1,650,000,000		1,650,000,000		2,435,000,000
Office Portfolio CMBS \| Secured debt
Debt Instrument
Debt instrument, maximum capacity	$ 475,000,000.0		$ 475,000,000.0
Number of properties \| property	6		6
Joint venture partner debt	$ 473,333,000		$ 473,333,000		0
Element LA \| Secured debt
Debt Instrument
Joint venture partner debt	0		0		168,000,000
Loss on extinguishment of debt			(1,900,000)
Element LA \| Unsecured debt
Debt Instrument
Loss on extinguishment of debt			(1,600,000)
Revolving credit facility
Debt Instrument
Repayments of debt			320,000,000.0
Revolving credit facility \| Unsecured debt
Debt Instrument
Repayments of debt			259,000,000
Joint venture partner debt	0		0		320,000,000
Maximum borrowing capacity	$ 775,000,000.0		$ 775,000,000.0		$ 900,000,000