Represents the guaranty threshold amount as percentage of minimum returns due to us.

No definition available.

Name:	hpt_GuarantyPaymentsThresholdPercentageOfMinimumReturns
Namespace Prefix:	hpt_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the amount of realized returns to the entity during the period.

+ References

No definition available.

+ Details

Name:	hpt_HotelManagementAgreementRealizedReturns
Namespace Prefix:	hpt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- References

No definition available.

+ Details

Name:	hpt_ManagementAgreementsAndLeasesLineItems
Namespace Prefix:	hpt_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the minimum returns and rents payable to the entity.

+ References

No definition available.

+ Details

Name:	hpt_OperatingAgreementAnnualRentAndReturn
Namespace Prefix:	hpt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Represents the percentage increase in minimum returns after funding for the renovation of hotels.

+ References

No definition available.

+ Details

Name:	hpt_PercentageIncreaseInMinimumReturnsAfterFundingForRenovation
Namespace Prefix:	hpt_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the remaining amount of the guarantee of performance by a third party, under the terms of an operating agreement.

+ References

No definition available.

+ Details

Name:	hpt_PropertyAgreementGuaranteeReceivedByEntityRemainingAmount
Namespace Prefix:	hpt_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Replenishment of security deposits from hotel cash flows in excess of minimum returns (non-cash application of security deposit liabilities against outstanding minimum rent and return charges).

+ References

No definition available.

+ Details

Name:	hpt_SecurityDepositsReplenishedAppliedToPaymentShortfalls
Namespace Prefix:	hpt_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The increase (decrease) during the reporting period in security deposits.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585

+ Details

Name:	us-gaap_IncreaseDecreaseInSecurityDeposits
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The number of real estate properties owned as of the balance sheet date.

+ References

No definition available.

+ Details

Name:	us-gaap_NumberOfRealEstateProperties
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

The cash outflow for acquisition of or capital improvements to properties held for investment (operating, managed, leased) or for use.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3213-108585

+ Details

Name:	us-gaap_PaymentsForCapitalImprovements
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

This element represents money paid in advance to protect the provider of a product or service, such as a lessor, against damage or nonpayment by the buyer or tenant (lessee) during the term of the agreement. Such damages may include physical damage to the property, theft of property, and other contractual breaches. Security deposits held may be interest or noninterest bearing.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.15(a))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

+ Details

Name:	us-gaap_SecurityDepositLiability
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=us-gaap_HotelMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	hpt_ManagementAgreementContractNameAxis=hpt_MarriottAgreement234Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementScenarioAxis=us-gaap_ScenarioForecastMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Hotel Management Agreements and Leases - Marriott No. 234 (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2018 USD ($) hotel	Mar. 31, 2017 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Management Agreements and Leases [Line Items]
Security deposit balance	$ 119,356			$ 126,078
Capital improvements from leased facilities, funded	$ 26,483	$ 32,731
Hotel
Management Agreements and Leases [Line Items]
Number of properties owned \| hotel	323
Marriott No. 234 agreement \| Hotel
Management Agreements and Leases [Line Items]
Number of properties owned \| hotel	68
Operating agreement annual rent and return	$ 106,869
Realized returns and rents	26,710	$ 26,590
Security deposits replenished and increased	64,700
Replenishment (utilization) of security deposit	856
Security deposit balance	$ 25,115
Guaranty payments threshold as percentage of minimum returns	90.00%
Guarantee provided to the entity, remaining amount	$ 30,672
Capital improvements from leased facilities, funded	$ 3,680
Percentage increase in minimum returns	9.00%
Forecast \| Marriott No. 234 agreement \| Hotel
Management Agreements and Leases [Line Items]
Capital improvements from leased facilities, funded			$ 5,800