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Equity - Narrative (Details) | 3 Months Ended | 9 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Sep. 30, 2018 $ / shares shares | Sep. 30, 2017 $ / shares | Sep. 30, 2018 USD ($) $ / shares shares | Sep. 30, 2017 USD ($) $ / shares | Mar. 08, 2018 USD ($) | Dec. 31, 2017 shares | Jan. 20, 2016 USD ($)
Class of Stock [Line Items] |  |  |  |  |  |  |
Company-owned common units in the operating partnership (in shares) | shares | 155,649,125 |  | 155,649,125 |  |  | 155,602,508 |
Non-controlling ownership interest percentage | 0.40% |  | 0.40% |  |  | 0.40% |
Proceeds from issuance of common stock/units, net |  |  | $ 0 | $ 647,524,000 |  |  |
Stock repurchase program authorized |  |  |  |  | $ 250,000,000.0 |  | $ 100,000,000.0
Common stock (in dollars per share) | $ / shares | $ 0.25 | $ 0.25 | $ 0.75 | $ 0.75 |  |  |
Common units (in dollars per share) | $ / shares | 0.25 | 0.25 | 0.75 | 0.75 |  |  |
Series A preferred units (in dollars per share) | $ / shares | $ 0.3906 | $ 0.3906 | $ 1.1718 | $ 1.1718 |  |  |
Hudson Pacific Partners L.P. |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Company's ownership interest percentage | 99.60% |  | 99.60% |  |  | 99.60% |
At-the-Market |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Maximum shares authorized, value |  |  | $ 125,000,000.0 |  |  |  |
Proceeds from issuance of common stock/units, net |  |  | $ 20,100,000 |  |  |  |
Performance units |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Conversion ratio |  |  | 1 |  |  |  |
Common Stock/Units |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Non-controlling common units in the operating partnership (in shares) | shares | 569,045 |  | 569,045 |  |  | 569,045 |
Partnership Interest |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Company-owned common units in the operating partnership (in shares) | shares | 155,649,125 |  | 155,649,125 |  |  | 155,602,508 |

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