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Debt - Narrative (Details) |  |  |  |  | 9 Months Ended |  |  |  |
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Oct. 03, 2019 USD ($) | Jun. 14, 2019 USD ($) | Feb. 27, 2019 USD ($) | Mar. 12, 2018 USD ($) | Sep. 30, 2019 USD ($) derivative instrument | Mar. 01, 2019 USD ($) | Feb. 28, 2019 | Dec. 31, 2018 USD ($) derivative | Mar. 13, 2018 USD ($)
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Duration used in interest rate calculation (in days) |  |  |  |  | 360 days |  |  |  |
One Westside and 10850 Pico | VIE, Primary Beneficiary |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Ownership Interest |  |  |  |  | 75.00% |  |  |  |
Hill7 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Real estate property, ownership interest |  |  |  |  | 55.00% |  |  |  |
Interest Rate Swap | Designated as Hedging Instrument |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Number of derivative instruments held | derivative |  |  |  |  | 6 |  |  | 6 |
Term Loan A | Interest Rate Swap |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Number of derivative instruments held | derivative |  |  |  |  | 2 |  |  |  |
Term Loan A | Interest Rate Swap | Designated as Hedging Instrument |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Number of derivative instruments held | instrument |  |  |  |  | 2 |  |  |  |
Term Loan A | Interest Rate Swap | Designated as Hedging Instrument | Minimum |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Adjusted interest rate |  |  |  |  | 2.65% |  |  |  |
Term Loan A | Interest Rate Swap | Designated as Hedging Instrument | Maximum |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Adjusted interest rate |  |  |  |  | 3.06% |  |  |  |
Term Loan B | Interest Rate Swap | Designated as Hedging Instrument |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Number of derivative instruments held | instrument |  |  |  |  | 2 |  |  |  |
Term Loan B | Interest Rate Swap | Designated as Hedging Instrument | Minimum |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Adjusted interest rate |  |  |  |  | 2.96% |  |  |  |
Term Loan B | Interest Rate Swap | Designated as Hedging Instrument | Maximum |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Adjusted interest rate |  |  |  |  | 3.46% |  |  |  |
Term Loan D | Interest Rate Swap | Designated as Hedging Instrument |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Number of derivative instruments held | instrument |  |  |  |  | 1 |  |  |  |
Term Loan D | Interest Rate Swap | Designated as Hedging Instrument | Minimum |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Adjusted interest rate |  |  |  |  | 2.63% |  |  |  |
Term Loan D | Interest Rate Swap | Designated as Hedging Instrument | Maximum |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Adjusted interest rate |  |  |  |  | 3.13% |  |  |  |
Met Park North |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Adjusted interest rate |  |  |  |  | 3.71% |  |  |  |
Met Park North | Interest Rate Swap | Designated as Hedging Instrument |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Number of derivative instruments held | instrument |  |  |  |  | 1 |  |  |  |
Met Park North | Interest Rate Swap | Designated as Hedging Instrument | Minimum |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Adjusted interest rate |  |  |  |  | 3.71% |  |  |  |
Met Park North | Interest Rate Swap | Designated as Hedging Instrument | Maximum |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Adjusted interest rate |  |  |  |  | 3.71% |  |  |  |
10950 Washington |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Service payment term (in years) |  |  |  |  | 30 years |  |  |  |
Revolving Credit Facility |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Total borrowing capacity |  |  |  |  |  | $ 235,000,000.0 |  |  |
Decrease in borrowings, net of draws |  |  |  |  | $ 320,000,000.0 |  |  |  |
Annual facility fee rate |  |  |  |  |  | 0.20% |  |  |
Unsecured Debt |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Notes payable |  |  |  |  | 2,380,000,000 |  |  | $ 2,275,000,000 |
Unsecured Debt | Term Loan A |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Notes payable |  |  |  |  | $ 300,000,000 |  |  | 300,000,000 |
Debt instrument, term (in years) |  |  |  |  | 5 years |  |  |  |
Unsecured Debt | Term Loan B |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Notes payable |  |  |  |  | $ 350,000,000 |  |  | 350,000,000 |
Unsecured Debt | Term Loan B | Interest Rate Swap |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Number of derivative instruments held | derivative |  |  |  |  | 2 |  |  |  |
Unsecured Debt | Term Loan D |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Notes payable |  |  |  |  | $ 125,000,000 |  |  | 125,000,000 |
Unsecured Debt | 4.65% Registered Senior Notes |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Notes payable |  | $ 150,000,000.0 | $ 350,000,000.0 |  | $ 500,000,000 |  |  | 0 |
Interest rate |  | 4.12% | 4.82% |  |  |  |  |  |
Stated interest rate |  |  |  |  | 4.65% |  |  |  |
Proceeds from issuance of long-term debt |  | $ 155,300,000 |  |  |  |  |  |  |
Unsecured Debt | Term Loan C |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Notes payable |  |  |  |  | $ 0 |  |  | 75,000,000 |
Repayments of debt |  |  | $ 75,000,000.0 |  |  |  |  |  |
Unsecured Debt | Hudson Pacific Partners L.P. | Term Loan A |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Total borrowing capacity |  |  |  |  |  |  |  |  | $ 300,000,000.0
Unsecured Debt | Hudson Pacific Partners L.P. | Term Loan B |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Total borrowing capacity |  |  |  |  |  |  |  |  | 350,000,000.0
Unsecured Debt | Hudson Pacific Partners L.P. | Term Loan D |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Total borrowing capacity |  |  |  |  |  |  |  |  | 125,000,000.0
Unsecured Debt | Hudson Pacific Partners L.P. | 4.65% Registered Senior Notes |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Percentage of par at debt issuance |  | 104.544% | 98.663% |  |  |  |  |  |
Stated interest rate |  |  | 4.65% |  |  |  |  |  |
Unsecured Debt | Hudson Pacific Partners L.P. | Term Loan C |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Face amount |  |  |  |  |  |  |  |  | 75,000,000.0
Unsecured Debt | Hudson Pacific Partners L.P. | 5-Year Term Loan due April 2020 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Total borrowing capacity |  |  |  | $ 300,000,000.0 |  |  |  |  |
Debt instrument, term (in years) |  |  |  | 5 years |  |  |  |  |
Unsecured Debt | Hudson Pacific Partners L.P. | Revolving Credit Facility 2014 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Total borrowing capacity |  |  |  | $ 400,000,000.0 |  |  |  |  |
Unsecured Debt | Hudson Pacific Partners L.P. | 7-Year Term Loan due April 2022 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Total borrowing capacity |  |  |  | $ 350,000,000.0 |  |  |  |  |
Debt instrument, term (in years) |  |  |  | 7 years |  |  |  |  |
Unsecured Debt | Hudson Pacific Partners L.P. | 5-Year Term Loan due November 2020 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Total borrowing capacity |  |  |  | $ 75,000,000.0 |  |  |  |  |
Debt instrument, term (in years) |  |  |  | 5 years |  |  |  |  |
Unsecured Debt | Hudson Pacific Partners L.P. | 7-Year Term Loan due November 2022 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Total borrowing capacity |  |  |  | $ 125,000,000.0 |  |  |  |  |
Debt instrument, term (in years) |  |  |  | 7 years |  |  |  |  |
Unsecured Debt | Revolving Credit Facility |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Total borrowing capacity |  |  |  |  | 600,000,000 |  |  | 600,000,000 |
Notes payable |  |  |  |  | 80,000,000 |  |  | 400,000,000 |
Unsecured Debt | Revolving Credit Facility | Hudson Pacific Partners L.P. |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Total borrowing capacity |  |  |  |  | 600,000,000.0 |  |  |  | $ 600,000,000.0
Secured Debt |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Notes payable |  |  |  |  | 364,960,000 |  |  | 365,381,000 |
Secured Debt | Met Park North |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Notes payable |  |  |  |  | 64,500,000 |  |  | 64,500,000 |
Secured Debt | 10950 Washington |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Notes payable |  |  |  |  | $ 26,459,000 |  |  | 26,880,000 |
Interest rate |  |  |  |  | 5.32% |  |  |  |
Secured Debt | Sunset Bronson Studios/ICON/CUE facility |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Total borrowing capacity |  |  |  |  | $ 235,000,000.0 |  |  |  |
Notes payable |  |  |  |  | 5,001,000 |  |  | 0 |
Secured Debt | Hill7 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Notes payable |  |  |  |  | $ 101,000,000 |  |  | $ 101,000,000 |
Interest rate |  |  |  |  | 3.38% |  |  |  |
Senior Notes | Hudson Pacific Partners L.P. | 4.65% Registered Senior Notes |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Stated interest rate |  |  | 4.65% |  |  |  | 4.65% |  |
Senior Notes | Hudson Pacific Partners L.P. | Senior Notes due November 1, 2027 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Proceeds from issuance of long-term debt |  |  | $ 343,000,000.0 |  |  |  |  |  |
In-substance Defeased Debt |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Service payment term (in years) |  |  |  |  | 10 years |  |  |  |
Interest rate |  |  |  |  | 4.47% |  |  |  |
Joint Venture Partner Debt |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  | 4.50% |  |  |  |
Debt instrument, first renewal term |  |  |  |  | 2 years |  |  |  |
Debt instrument, second renewal term |  |  |  |  | 2 years |  |  |  |
Subsequent Event | Unsecured Debt | Term Loan A |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Repayments of debt | $ 300,000,000.0 |  |  |  |  |  |  |  |
Subsequent Event | Unsecured Debt | Revolving Credit Facility |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Repayments of debt | $ 80,000,000.0 |  |  |  |  |  |  |  |
Subsequent Event | Senior Notes | Senior Notes due January 2030 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Percentage of par at debt issuance | 99.268% |  |  |  |  |  |  |  |
Face amount | $ 400,000,000.0 |  |  |  |  |  |  |  |
Stated interest rate | 3.25% |  |  |  |  |  |  |  |

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