Above-Market Lease Intangible

No definition available.

Name:	cik0001645873_AboveMarketLeaseIntangible
Namespace Prefix:	cik0001645873_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Asset Acquisition, Consideration Transferred, Shares

+ References

No definition available.

+ Details

Name:	cik0001645873_AssetAcquisitionConsiderationTransferredEquityInterestIssuedAndIssuableNumberOfShares
Namespace Prefix:	cik0001645873_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Asset Acquisition, Consideration Transferred, Equity Interest Issued and Issuable, Price Per Share

+ References

No definition available.

+ Details

Name:	cik0001645873_AssetAcquisitionConsiderationTransferredEquityInterestIssuedAndIssuablePricePerShare
Namespace Prefix:	cik0001645873_
Data Type:	dtr-types1:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount before accumulated depreciation of fixtures and equipment. Includes, but is not limited to, machinery, equipment, and engines.

+ References

No definition available.

+ Details

Name:	us-gaap_FixturesAndEquipmentGross
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Carrying amount as of the balance sheet date of building structures held as inventory including any additions, improvements, or renovations to those structures.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(6)(a))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1

+ Details

Name:	us-gaap_InventoryBuildingsAndImprovements
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount before accumulated depletion of real estate held for productive use, excluding land held for sale.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(13))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1

+ Details

Name:	us-gaap_Land
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- 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

Amount of real estate investment property which may include the following: (1) land available-for-sale; (2) land available-for-development; (3) investments in building and building improvements; (4) tenant allowances; (5) developments in-process; (6) rental properties; and (7) other real estate investments.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(1)(d))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1

+ Details

Name:	us-gaap_RealEstateInvestmentPropertyAtCost
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 976
-SubTopic 310
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482856/976-310-50-1

+ Details

Name:	us-gaap_RealEstateLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

This element represents those amounts set aside for the repair and replacement of real or personal property in the foreseen future. Such amount may be funded from sales revenue (for example; timeshare sales) or operating revenues; in a lump sum or installments (such as monthly); as per internal policy (for example: hotel operators), as required by contractual agreement (for example: sales contract); or by the terms of debt agreements.

+ References

No definition available.

+ Details

Name:	us-gaap_ReplacementReserveEscrow
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Value of shares of stock issued during the period as part of a transaction to acquire assets that do not qualify as a business combination.

+ References

No definition available.

+ Details

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

- Definition

Carrying amount as of the balance sheet date of improvements having a life longer than one year that were made for the benefit of one or more tenants.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 944
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(1)(d))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1

+ Details

Name:	us-gaap_TenantImprovements
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	us-gaap_AssetAcquisitionAxis=cik0001645873_SummitSteelAndManufacturingIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=cik0001645873_AcquisitionsFor2023Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=cik0001645873_PlasticProductsPrincetonMNMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=cik0001645873_StealthManufacturingSavageMNMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=cik0001645873_LindsayGapPAMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=cik0001645873_SummitSteelReadingPAMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=cik0001645873_PBCLinearRoscoeILMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=cik0001645873_CameronToolLansingMIMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=cik0001645873_SJElectroSystemsDetroitLakesMNMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=cik0001645873_SJElectroSystemsPlymouthMNMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=cik0001645873_SJElectroSystemsAshlandOHMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=cik0001645873_TitanAlleytonTXMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=cik0001645873_VistechPiquaOHMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=cik0001645873_SixAxisAndrewsSCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=cik0001645873_SJElectroSystemsLLCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=cik0001645873_AcquisitionsFor2022Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=cik0001645873_LindsayPrecastLLCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=cik0001645873_LindsayFranklintonMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=cik0001645873_SummitSteelAndManufacturingIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

REAL ESTATE INVESTMENTS, NET - Acquisition (Details)		9 Months Ended
REAL ESTATE INVESTMENTS, NET - Acquisition (Details)	Apr. 13, 2023 USD ($) property $ / shares shares	Sep. 30, 2023 USD ($) property	Jul. 11, 2023 USD ($)	Jul. 03, 2023 USD ($)	May 11, 2023 USD ($)	May 05, 2023 USD ($)	May 03, 2023 USD ($)	Apr. 20, 2023 USD ($)	Mar. 31, 2023 USD ($)	Jan. 26, 2023 USD ($)	Dec. 31, 2022 USD ($)	Sep. 30, 2022 USD ($)	Apr. 19, 2022 property
Real Estate [Line Items]
Number of real estate properties \| property		44
Land		$ 106,263,557									$ 103,657,237
Equipment		4,429,000									4,429,000
Tenant origination and absorption costs		15,929,385									19,499,749
Acquisition Price		528,658,026									$ 457,453,085
Summit Steel and Manufacturing, Inc. \| Common Stock
Real Estate [Line Items]
Stock issued during period, value, purchase of assets		5,175,284
Acquisitions for 2023
Real Estate [Line Items]
Land		12,605,145
Buildings and Improvements		115,079,713
Tenant origination and absorption costs		553,780
Below- Market Lease Intangibles		(285,139)
Acquisition Price		$ 127,953,499
Plastic Products, Princeton, MN
Real Estate [Line Items]
Land										$ 421,997
Buildings and Improvements										5,696,414
Tenant origination and absorption costs										553,780
Below- Market Lease Intangibles										(285,139)
Acquisition Price										$ 6,387,052
Stealth Manufacturing, Savage, MN
Real Estate [Line Items]
Land									$ 770,752
Buildings and Improvements									4,755,558
Tenant origination and absorption costs									0
Below- Market Lease Intangibles									0
Acquisition Price									$ 5,526,310
Lindsay Gap, PA
Real Estate [Line Items]
Land	$ 2,125,604
Buildings and Improvements	14,454,440
Tenant origination and absorption costs	0
Below- Market Lease Intangibles	0
Acquisition Price	16,580,044
Summit Steel, Reading, PA
Real Estate [Line Items]
Land	1,517,782
Buildings and Improvements	9,879,309
Tenant origination and absorption costs	0
Below- Market Lease Intangibles	0
Acquisition Price	$ 11,397,091
PBC Linear, Roscoe, IL
Real Estate [Line Items]
Land								$ 699,198
Buildings and Improvements								19,324,780
Tenant origination and absorption costs								0
Below- Market Lease Intangibles								0
Acquisition Price								$ 20,023,978
Cameron Tool, Lansing, MI
Real Estate [Line Items]
Land							$ 246,355
Buildings and Improvements							5,530,235
Tenant origination and absorption costs							0
Below- Market Lease Intangibles							0
Acquisition Price							$ 5,776,590
S J Electro Systems Detroit Lakes, MN
Real Estate [Line Items]
Land						$ 1,736,976
Buildings and Improvements						4,577,081
Tenant origination and absorption costs						0
Below- Market Lease Intangibles						0
Acquisition Price						6,314,057
S J Electro Systems Plymouth, MN
Real Estate [Line Items]
Land						627,903
Buildings and Improvements						1,597,732
Tenant origination and absorption costs						0
Below- Market Lease Intangibles						0
Acquisition Price						2,225,635
S J Electro Systems Ashland, TX
Real Estate [Line Items]
Land						251,233
Buildings and Improvements						7,303,978
Tenant origination and absorption costs						0
Below- Market Lease Intangibles						0
Acquisition Price						$ 7,555,211
Titan, Alleyton, TX
Real Estate [Line Items]
Land					$ 2,056,161
Buildings and Improvements					15,090,342
Tenant origination and absorption costs					0
Below- Market Lease Intangibles					0
Acquisition Price					$ 17,146,503
Vistech, Piqua, OH
Real Estate [Line Items]
Land				$ 922,310
Buildings and Improvements				12,628,622
Tenant origination and absorption costs				0
Below- Market Lease Intangibles				0
Acquisition Price				$ 13,550,932
SixAxis, Andrews, SC
Real Estate [Line Items]
Land			$ 1,228,874
Buildings and Improvements			14,241,222
Tenant origination and absorption costs			0
Below- Market Lease Intangibles			0
Acquisition Price			$ 15,470,096
SJE
Real Estate [Line Items]
Number of real estate properties \| property		3
Acquisitions for 2022
Real Estate [Line Items]
Acquisition Price												$ 162,313,032
Lindsay Precast, LLC
Real Estate [Line Items]
Number of real estate properties \| property	1	9											8
Lindsay, Franklinton, NC \| North Carolina
Real Estate [Line Items]
Replacement reserve escrow		$ 1,800,000
Summit Steel and Manufacturing, Inc. \| Summit Steel and Manufacturing, Inc. \| Common Stock
Real Estate [Line Items]
Equity interest issued and issuable, number of shares (in shares) \| shares	287,516
Equity interest issued and issuable (in usd per share) \| $ / shares	$ 18.00