Debt - Additional Information (Detail)				2 Months Ended	3 Months Ended		12 Months Ended
	May 30, 2018 USD ($) Hotel Extension	May 29, 2018 USD ($)	Apr. 14, 2014	Mar. 06, 2018	Mar. 31, 2019 USD ($) Extension	May 30, 2018 USD ($)	Dec. 31, 2018 USD ($)
Revolving Facility [Member]
Debt Instrument [Line Items]
Line of credit facility extended expiration period					1 year
Unused commitment fee percentage	0.50%
Revolving Facility [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate					4.50%
Revolving Facility [Member] | Core Point Borrower L L C [Member]
Debt Instrument [Line Items]
Senior secured credit facility	$ 150,000,000				$ 150,000,000	$ 150,000,000
Line of credit facility maturity date	May 30, 2020
Revolving credit facility, drawn amount	$ 25,000,000					$ 25,000,000
Line of credit facility extended expiration period	1 year
Revolving Facility [Member] | Minimum [Member]
Debt Instrument [Line Items]
Percentage of outstanding letters of credit	10.00%
CMBS Loan Agreement [Member]
Debt Instrument [Line Items]
Loss on extinguishment of debt							$ 10,000,000
Term Facility [Member]
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate				2.75%		3.00%
CMBS Facility [Member]
Debt Instrument [Line Items]
Debt instrument, description of variable rate basis					one-month LIBOR
Additional interest expense		$ 2,000,000
Debt instrument, number of extension options | Extension					5
Debt instrument prepayment description					(i) all accrued interest through the end of the applicable accrual period and (ii) prior to the payment date in December 2019 a spread maintenance premium and in certain cases third party LIBOR breakage costs.
Spread maintenance premium for prepayments after the payment date	$ 0					$ 0
Debt Instrument Debt Yield Description					The most restrictive of these conditions provide that after giving effect to such release, the debt yield for the CMBS Facility (generally defined as hotel property operating net income before interest, depreciation and corporate general and administrative expenses divided by the outstanding principal balance of the CMBS Facility, “Debt Yield”) is not less than the greater of (x) 16.44% and (y) the lesser of (i) the Debt Yield in effect immediately prior to such release and (ii) 16.94% (such result the “Release Debt Yield”). However, if such release is in connection with the sale of a property to an unrelated third party, such sold property may be released if the CMBS Borrower prepays an amount equal to the greater of (x) the allocated portion of the outstanding CMBS Facility plus a premium ranging from 5% to 10%, as defined in the CMBS Loan Agreement, and (y) the lesser of (i) the full net proceeds from the sale of the property received by the Company and (ii) the amount necessary to satisfy the Release Debt Yield.
Debt Instrument Debt Yield Percentage Under Condition 1	16.44%
Debt Instrument Debt Yield Percentage Under Condition 2	16.94%
Net proceeds from sale of properties for pay down debt principal					$ 4,000,000
Upfront reserve deposited for lender	$ 15,000,000
CMBS Facility [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate					2.75%
CMBS Facility [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt instrument prepayment amount, percentage	20.00%
CMBS Facility [Member] | First Five Years Term Loan
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	2.75%
CMBS Facility [Member] | First Five Years Term Loan | Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument Yield Percentage	12.33%
CMBS Facility [Member] | Sixth Year Term Loan
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	2.90%
CMBS Facility [Member] | Sixth Year Term Loan | Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument Yield Percentage	12.83%
CMBS Facility [Member] | Seventh Year Term Loan
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	3.00%
CMBS Facility [Member] | Seventh Year Term Loan | Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument Yield Percentage	12.83%
CMBS Facility [Member] | CorePoint CMBS Borrower [Member]
Debt Instrument [Line Items]
Debt Instrument Premium Percentage Minimum	5.00%
Debt Instrument Debt Premium Percentage Maximum	10.00%
CMBS Facility [Member] | CorePoint CMBS Borrower [Member] | Commercial Mortgage Backed Securities [Member] | Secured Mortgage [Member]
Debt Instrument [Line Items]
Aggregate principal amount of debt	$ 1,035,000,000					$ 1,035,000,000
Number of owned and ground leased hotels for which excess cash flow pledge is made | Hotel	7
Debt instrument initial term	2 years
Debt instrument, number of extension options | Extension	5
Debt instrument maturity date	Jun. 09, 2020
Core Point Revolver Borrower | Revolving Facility [Member] | Base Rate [Member]
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate			3.50%
Core Point Revolver Borrower | Revolving Facility [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate			4.50%