XML 45 R53.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Equity - Stock-Based Compensation Narrative (Details) | 3 Months Ended
--- | ---
Mar. 31, 2015
Existing and Newly Elected Board Member |
Share-based Compensation Arrangement by Share-based Payment Award |
Award vesting period | 3 years
Employees |
Share-based Compensation Arrangement by Share-based Payment Award |
Award vesting period | 3 years

X
- Definition Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_PlanNameAxis=hpp_StockBasedCompensationEmployeesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PlanNameAxis=hpp_StockBasedCompensationExistingAndNewlyElectedBoardMemberMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |