Future Minimum Rents and Lease Payments - Schedule of Rental Expense (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2025	Mar. 31, 2024
Leases [Abstract]
Variable rental expense	$ 995	$ 2,102
Minimum rental expense	$ 17,148	$ 11,319

Lessee, Operating Lease, Contingent Rental Expense

No definition available.

Name:	hpp_LesseeOperatingLeaseContingentRentalExpense
Namespace Prefix:	hpp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration