Common stock shares authorized amount.

No definition available.

Name:	cfit_CommonStockSharesAuthorizedAmount
Namespace Prefix:	cfit_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Percentage of affiliated joint venture owns controlling interest.

+ References

No definition available.

+ Details

Name:	cfit_PercentageOfAffiliatedJointVentureOwnsControllingInterest
Namespace Prefix:	cfit_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of affiliated joint venture owns majority interest.

+ References

No definition available.

+ Details

Name:	cfit_PercentageOfAffiliatedJointVentureOwnsMajorityInterest
Namespace Prefix:	cfit_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of assets invested in properties and real estate-related debt.

+ References

No definition available.

+ Details

Name:	cfit_PercentageOfAssetsInvestedInPropertiesAndRealEstateRelatedDebt
Namespace Prefix:	cfit_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage of assets invested in real estate-related securities.

+ References

No definition available.

+ Details

Name:	cfit_PercentageOfAssetsInvestedInRealEstateRelatedSecurities
Namespace Prefix:	cfit_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Primary offering termination date.

+ References

No definition available.

+ Details

Name:	cfit_PrimaryOfferingTerminationDate
Namespace Prefix:	cfit_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Schedule Of Organization And Basis Of Presentation [Line Items]

+ References

No definition available.

+ Details

Name:	cfit_ScheduleOfOrganizationAndBasisOfPresentationLineItems
Namespace Prefix:	cfit_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Date when an entity was incorporated

+ References

No definition available.

+ Details

Name:	dei_EntityIncorporationDateOfIncorporation
Namespace Prefix:	dei_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Two-character EDGAR code representing the state or country of incorporation.

+ References

No definition available.

+ Details

Name:	dei_EntityIncorporationStateCountryCode
Namespace Prefix:	dei_
Data Type:	dei:edgarStateCountryItemType
Balance Type:	na
Period Type:	duration

- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

+ Details

Name:	us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of increase in noncontrolling interest from sale of a portion of the parent's controlling interest.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 45
-Paragraph 23
-URI http://asc.fasb.org/extlink&oid=123454820&loc=SL4569655-111683

+ Details

Name:	us-gaap_NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8672-108599

+ Details

Name:	us-gaap_NumberOfReportableSegments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of new stock issued during the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21463-112644

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(28))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_StockIssuedDuringPeriodSharesNewIssues
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21463-112644

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(28))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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

- Details

Name:	srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=cfit_StationDSTMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementGeographicalAxis=stpr_TX
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=cfit_KellerJVMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementGeographicalAxis=cfit_CarroltonTexasMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=cfit_ValenciaDSTMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RealEstatePropertiesAxis=cfit_DelawareStatutoryTrustPropertyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RealEstatePropertiesAxis=cfit_KellerPropertyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RealEstatePropertiesAxis=cfit_SummerfieldPropertyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=cfit_SummerfieldDSTMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementGeographicalAxis=stpr_MD
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RealEstatePropertiesAxis=cfit_ValenciaPropertyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementGeographicalAxis=cfit_ValenciaCaliforniaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PlanNameAxis=cfit_DistributionReinvestmentPlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=cfit_IPOAndDistributionReinvestmentPlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=us-gaap_IPOMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=cfit_FollowOnOfferingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementClassOfStockAxis=us-gaap_CommonClassAMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementClassOfStockAxis=cfit_CommonClassIMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Organization and Business Purpose - Additional Information (Detail)								3 Months Ended						6 Months Ended	9 Months Ended
	Sep. 30, 2021 property shares	Dec. 31, 2020 shares	Aug. 10, 2020 USD ($)	Jul. 31, 2020 USD ($)	May 18, 2017 USD ($)	Oct. 17, 2016 USD ($)	Feb. 02, 2016 USD ($) shares	Sep. 30, 2021 USD ($) property shares	Jun. 30, 2021 USD ($) shares	Mar. 31, 2021 USD ($) shares	Sep. 30, 2020 USD ($) shares	Jun. 30, 2020 USD ($)	Mar. 31, 2020 USD ($)	Jun. 30, 2021 USD ($)	Sep. 30, 2021 USD ($) Segment property	Nov. 30, 2020	Nov. 25, 2020
Schedule Of Organization And Basis Of Presentation [Line Items]
Date of incorporation															Feb. 02, 2016
State of incorporation															MD
Number of reportable segment \| Segment															1
Stock issued during period, new issues, value								$ 24,712,255	$ 17,706,780	$ 10,991,523	$ 4,621,878	$ 7,116,579	$ 11,039,819
Stock issued during period, new issues, shares \| shares	8,445,731	6,387,089
Investment in Operating Partnership by subsidiary of Sponsor, Rodin Global Property Trust OP Holdings, LLC (the "OP")														$ 1,000	$ 1,000
Primary offering termination date				Jul. 31, 2020
Number of real estate properties owned \| property	18							18							18
Equity investment	100.00%							100.00%							100.00%
Station DST [Member]
Schedule Of Organization And Basis Of Presentation [Line Items]
Equity investment	15.00%							15.00%							15.00%	15.00%	15.00%
Station DST [Member] \| Irving, Texas [Member]
Schedule Of Organization And Basis Of Presentation [Line Items]
Equity investment	15.00%							15.00%							15.00%
Keller JV [Member] \| Carrolton, Texas [Member]
Schedule Of Organization And Basis Of Presentation [Line Items]
Equity investment	80.26%							80.26%							80.26%
Valencia DST [Member]
Schedule Of Organization And Basis Of Presentation [Line Items]
Equity investment	9.91%							9.91%							9.91%
DST Properties [Member]
Schedule Of Organization And Basis Of Presentation [Line Items]
Number of real estate properties owned \| property	7							7							7
Keller Property [Member] \| Irving, Texas [Member]
Schedule Of Organization And Basis Of Presentation [Line Items]
Percentage of majority interest															97.00%
Keller Property [Member] \| Keller JV [Member] \| Irving, Texas [Member]
Schedule Of Organization And Basis Of Presentation [Line Items]
Equity investment	80.26%							80.26%							80.26%
Keller Property [Member] \| Keller JV [Member] \| Carrolton, Texas [Member]
Schedule Of Organization And Basis Of Presentation [Line Items]
Percentage of majority interest															97.00%
Summerfield Property [Member] \| Summerfield DST [Member] \| Landover, MD [Member]
Schedule Of Organization And Basis Of Presentation [Line Items]
Percentage of controlling interest															25.00%
Valencia Property [Member] \| Valencia DST [Member] \| Valencia, California [Member]
Schedule Of Organization And Basis Of Presentation [Line Items]
Percentage of controlling interest															9.91%
Maximum [Member] \| Distribution Reinvestment Plan [Member]
Schedule Of Organization And Basis Of Presentation [Line Items]
Common stock, shares authorized amount			$ 250,000,000	$ 50,000,000.0		$ 250,000,000	$ 250,000,000
Maximum [Member] \| Offering [Member]
Schedule Of Organization And Basis Of Presentation [Line Items]
Common stock, shares authorized amount						1,250,000,000	1,250,000,000
Maximum [Member] \| Primary Offering [Member]
Schedule Of Organization And Basis Of Presentation [Line Items]
Common stock, shares authorized amount			1,000,000,000			1,000,000,000.0	1,000,000,000.0
Maximum [Member] \| Follow On Offering
Schedule Of Organization And Basis Of Presentation [Line Items]
Common stock, shares authorized amount			$ 1,000,000,000
Percentage of assets invested in real estate-related securities			20.00%
Minimum [Member] \| Follow On Offering
Schedule Of Organization And Basis Of Presentation [Line Items]
Percentage of assets invested in properties and real estate-related debt			80.00%
Class A [Member]
Schedule Of Organization And Basis Of Presentation [Line Items]
Stock issued during period, new issues, value							$ 200,001
Stock issued during period, new issues, shares \| shares							8,180
Class I [Member]
Schedule Of Organization And Basis Of Presentation [Line Items]
Stock issued during period, new issues, value					$ 2,000,000.0			$ 7,759	$ 5,995	$ 2,818	$ 137
Stock issued during period, new issues, shares \| shares	1,824,875	160,013						775,827	599,495	281,800	13,736
Class I [Member] \| Primary Offering [Member]
Schedule Of Organization And Basis Of Presentation [Line Items]
Stock issued during period, new issues, value						$ 2,000,000.0