Mortgage Loans Held for Sale - Narrative (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Receivables [Abstract]
Unpaid principal balances of mortgage loans held for sale on nonaccrual status	$ 23.8	$ 21.8
Fair value of mortgage loans held for sale on nonaccrual status	18.3	$ 16.7
Unpaid principal balance pledged as security	$ 500.0

Financing Receivable, Held-For-Sale, Not Part Of Disposal Group, After Valuation Allowance, Unpaid Principal Balance, Pledged As Collateral

No definition available.

Name:	hmpt_FinancingReceivableHeldForSaleNotPartOfDisposalGroupAfterValuationAllowanceUnpaidPrincipalBalancePledgedAsCollateral
Namespace Prefix:	hmpt_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant