Debt Instrument, Duration Used in Interest Rate Calculation

No definition available.

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Data Type:	xbrli:durationItemType
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Period Type:	duration

- Definition

Debt Instrument, Periodic Payment, Debt Service Payment Term

+ References

No definition available.

+ Details

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Namespace Prefix:	hpp_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- 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

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(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

+ Details

Name:	us-gaap_DebtInstrumentInterestRateEffectivePercentage
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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentTerm
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Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of unamortized debt discount (premium) and debt issuance costs.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28555-108399

+ Details

Name:	us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
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Period Type:	duration

- Definition

Nominal or face amount used to calculate payments on the derivative asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5579245-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Notional Amount
-URI http://asc.fasb.org/extlink&oid=6519104

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5580258-113959

+ Details

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

- Definition

Floor rate on an interest rate derivative such as an interest rate floor or collar. If market rates falls below the floor rate, a payment or receipt is triggered on the contract.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeFloorInterestRate
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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66011266&loc=d3e33918-111571

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate.

+ References

+ Details

Name:	us-gaap_LongTermDebtPercentageBearingFixedInterestRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
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Period Type:	instant

Notes Payable, net - Summary of Outstanding Indebtedness (Details) - USD ($)											12 Months Ended
	Jun. 07, 2016	May 03, 2016	Nov. 17, 2015	Apr. 01, 2015	Sep. 23, 2014	Aug. 22, 2013	Jul. 31, 2013	Jan. 11, 2012	Mar. 16, 2011	Feb. 11, 2011	Dec. 31, 2016	Oct. 07, 2016	Jul. 31, 2016	Jul. 01, 2016	Jun. 01, 2016	Dec. 31, 2015	May 01, 2015	Aug. 21, 2013
Debt
Notes payable											$ 2,707,839,000					$ 2,278,445,000
Deferred Financing Costs, net											$ (19,829,000)					(17,729,000)
Duration used in interest rate calculation											360 days
Joint Venture That Owns Pinnacle I and II [Member]
Debt
Joint venture, ownership percentage											65.00%
Interest Rate Contract
Debt
Derivative asset notional amount				$ 300,000,000.0
7-Year Term Loan due November 2022 \| Interest Rate Contract
Debt
Derivative asset notional amount		$ 125,000,000
7-Year Term Loan due November 2022 \| Interest Rate Floor
Debt
Derivative, floor interest rate															0.00%
7-Year Term Loan due November 2022 \| London Interbank Offered Rate (LIBOR) \| Interest Rate Floor
Debt
Derivative, floor interest rate													0.00%
Rincon Center And 10950 Washington [Member]
Debt
Periodic payment, debt service payment term											30 years
Sunset Gower Sunset Bronson
Debt
Notes payable						$ 97,000,000				$ 92,000,000								$ 92,000,000
Debt instrument term										5 years
Sunset Gower Sunset Bronson \| London Interbank Offered Rate (LIBOR)
Debt
Basis spread on variable rate (as a percent)						2.25%		2.00%	3.715%	3.50%
Met Park North
Debt
Notes payable							$ 64,500,000
Debt instrument term							7 years
Fixed interest rate percentage											371.00%
Met Park North \| London Interbank Offered Rate (LIBOR)
Debt
Basis spread on variable rate (as a percent)							1.55%
Pinnacle I
Debt
Debt instrument term											5 years
Periodic payment, debt service payment term											30 years
Unsecured Debt
Debt
Notes payable											$ 2,025,000,000					1,555,000,000
Deferred Financing Costs, net											(12,392,000)					(12,125,000)
Unsecured Debt \| Unsecured Revolving Credit Facility
Debt
Notes payable											300,000,000					230,000,000
Deferred Financing Costs, net											$ 0					0
Debt instrument term											1 year
Unsecured Debt \| Unsecured Revolving Credit Facility \| London Interbank Offered Rate (LIBOR) \| Minimum
Debt
Basis spread on variable rate (as a percent)				1.15%	1.15%						1.15%
Unsecured Debt \| Unsecured Revolving Credit Facility \| London Interbank Offered Rate (LIBOR) \| Maximum
Debt
Basis spread on variable rate (as a percent)				1.85%	1.55%						1.85%
Unsecured Debt \| 5-Year Term Loan due April 2020
Debt
Notes payable											$ 450,000,000					550,000,000
Deferred Financing Costs, net											$ (3,513,000)					(5,571,000)
Debt instrument term		5 years
Unsecured Debt \| 5-Year Term Loan due April 2020 \| London Interbank Offered Rate (LIBOR) \| Minimum
Debt
Basis spread on variable rate (as a percent)											1.30%
Unsecured Debt \| 5-Year Term Loan due April 2020 \| London Interbank Offered Rate (LIBOR) \| Maximum
Debt
Basis spread on variable rate (as a percent)											2.20%
Unsecured Debt \| 5-Year Term Loan due November 2020
Debt
Notes payable											$ 175,000,000					0
Deferred Financing Costs, net											$ (745,000)					0
Debt instrument term			5 years
Unsecured Debt \| 5-Year Term Loan due November 2020 \| London Interbank Offered Rate (LIBOR) \| Minimum
Debt
Basis spread on variable rate (as a percent)											1.30%
Unsecured Debt \| 5-Year Term Loan due November 2020 \| London Interbank Offered Rate (LIBOR) \| Maximum
Debt
Basis spread on variable rate (as a percent)											2.20%
Unsecured Debt \| 7-Year Term Loan due April 2022
Debt
Notes payable											$ 350,000,000					350,000,000
Deferred Financing Costs, net											$ (2,265,000)					(2,656,000)
Unsecured Debt \| 7-Year Term Loan due April 2022 \| London Interbank Offered Rate (LIBOR) \| Minimum
Debt
Basis spread on variable rate (as a percent)											1.60%
Unsecured Debt \| 7-Year Term Loan due April 2022 \| London Interbank Offered Rate (LIBOR) \| Maximum
Debt
Basis spread on variable rate (as a percent)											2.55%
Unsecured Debt \| 7-Year Term Loan due November 2022
Debt
Notes payable											$ 125,000,000					0
Deferred Financing Costs, net											$ (931,000)					0
Debt instrument term		7 years	7 years
Unsecured Debt \| 7-Year Term Loan due November 2022 \| London Interbank Offered Rate (LIBOR) \| Minimum
Debt
Basis spread on variable rate (as a percent)											1.60%
Fixed interest rate percentage															3.03%
Unsecured Debt \| 7-Year Term Loan due November 2022 \| London Interbank Offered Rate (LIBOR) \| Maximum
Debt
Basis spread on variable rate (as a percent)											2.55%
Fixed interest rate percentage															3.98%
Unsecured Debt \| Series A Notes
Debt
Notes payable											$ 110,000,000					110,000,000
Deferred Financing Costs, net											$ (930,000)					(1,011,000)
Interest Rate											4.34%
Unsecured Debt \| Series E Notes
Debt
Notes payable											$ 50,000,000					0
Deferred Financing Costs, net											$ (300,000)					0
Interest Rate											3.66%
Unsecured Debt \| Series B Notes
Debt
Notes payable											$ 259,000,000					259,000,000
Deferred Financing Costs, net											$ (2,271,000)					(2,378,000)
Interest Rate											4.69%
Unsecured Debt \| Series D Notes
Debt
Notes payable											$ 150,000,000					0
Deferred Financing Costs, net											$ (898,000)					0
Interest Rate											3.98%
Unsecured Debt \| Series C Notes
Debt
Notes payable											$ 56,000,000					56,000,000
Deferred Financing Costs, net											$ (539,000)					(509,000)
Interest Rate											4.79%
Unsecured Debt \| 5 Year Term Loan Facility 2015
Debt
Debt instrument term				5 years
Unsecured Debt \| 5 Year Term Loan Facility 2015 \| Minimum
Debt
Fixed interest rate percentage																	2.66%
Unsecured Debt \| 5 Year Term Loan Facility 2015 \| Maximum
Debt
Fixed interest rate percentage																	3.56%
Unsecured Debt \| 5 Year Term Loan Facility 2015 \| London Interbank Offered Rate (LIBOR) \| Minimum
Debt
Fixed interest rate percentage														2.75%			2.66%
Unsecured Debt \| 5 Year Term Loan Facility 2015 \| London Interbank Offered Rate (LIBOR) \| Maximum
Debt
Fixed interest rate percentage														3.65%			3.56%
Unsecured Debt \| 7 Year Term Loan Facility 2015
Debt
Debt instrument term				7 years
Unsecured Debt \| 7 Year Term Loan Facility 2015 \| Minimum
Debt
Fixed interest rate percentage																	3.21%
Unsecured Debt \| 7 Year Term Loan Facility 2015 \| Maximum
Debt
Fixed interest rate percentage																	4.16%
Unsecured Debt \| 7 Year Term Loan Facility 2015 \| London Interbank Offered Rate (LIBOR) \| Minimum
Debt
Fixed interest rate percentage														3.36%			321.00%
Unsecured Debt \| 7 Year Term Loan Facility 2015 \| London Interbank Offered Rate (LIBOR) \| Maximum
Debt
Fixed interest rate percentage														4.31%			4.16%
Secured Debt
Debt
Notes payable											$ 682,839,000					723,445,000
Deferred Financing Costs, net											(7,437,000)					(5,604,000)
Secured Debt \| Rincon Center
Debt
Notes payable											100,409,000					102,309,000
Deferred Financing Costs, net											$ (198,000)					(355,000)
Interest Rate											5.13%
Secured Debt \| Sunset Gower Sunset Bronson
Debt
Notes payable											$ 5,001,000					115,001,000
Deferred Financing Costs, net											$ (1,534,000)					(2,232,000)
Secured Debt \| Sunset Gower Sunset Bronson \| London Interbank Offered Rate (LIBOR)
Debt
Basis spread on variable rate (as a percent)											2.25%
Secured Debt \| Met Park North
Debt
Notes payable											$ 64,500,000					64,500,000
Deferred Financing Costs, net											$ (398,000)					(509,000)
Secured Debt \| Met Park North \| London Interbank Offered Rate (LIBOR)
Debt
Basis spread on variable rate (as a percent)											1.55%
Secured Debt \| 10950 Washington
Debt
Notes payable											$ 27,929,000					28,407,000
Deferred Financing Costs, net											$ (354,000)					(421,000)
Interest Rate											5.32%
Secured Debt \| Pinnacle I
Debt
Notes payable											$ 129,000,000					129,000,000
Deferred Financing Costs, net											$ (593,000)					(694,000)
Interest Rate											3.95%
Secured Debt \| Element LA
Debt
Notes payable											$ 168,000,000					168,000,000
Deferred Financing Costs, net											$ (2,321,000)					(2,584,000)
Interest Rate											4.59%
Secured Debt \| Pinnacle II
Debt
Notes payable											$ 87,000,000					86,228,000
Deferred Financing Costs, net											$ (720,000)					1,310,000
Interest Rate											4.30%
Debt instrument term	10 years
Secured Debt \| Hill7 office property
Debt
Notes payable											$ 101,000,000					0
Deferred Financing Costs, net											$ (1,319,000)					0
Interest Rate											3.38%
Secured Debt \| 901 Market
Debt
Notes payable											$ 0					30,000,000
Deferred Financing Costs, net											$ 0					$ (119,000)
Hill7 office property
Debt
Joint venture, ownership percentage												55.00%