Related party transaction hurdle amount.

No definition available.

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Namespace Prefix:	ck0001474464_
Data Type:	dtr-types:perShareItemType
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Period Type:	duration

- Definition

Related party transaction incentive fee excess of hurdle amount percentage.

+ References

No definition available.

+ Details

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- Definition

Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Excludes Selling, General and Administrative Expense.

+ References

No definition available.

+ Details

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Balance Type:	debit
Period Type:	duration

- Definition

Amount due from parties in nontrade transactions, classified as other.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-04(5)(a)(5))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479617/946-210-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(3)(a)(4))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1

+ Details

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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 946
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07(2)(c)(2)(i))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483575/946-220-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07(2)(c)(2)(ii))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483575/946-220-S99-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07(2)(g)(3))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483575/946-220-S99-1

+ Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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Related Party Transactions and Arrangements - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands			2 Months Ended	3 Months Ended
	Oct. 30, 2020	Jul. 31, 2020	Mar. 31, 2017	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Winthrop Advisor and its Affiliates [Member]
Related Party Transaction [Line Items]
Fees paid to related parties				$ 300	$ 300
Liquidation Value [Member] \| Asset Management Fees and Compensation Reimbursements [Member]
Related Party Transaction [Line Items]
Fees paid to related parties	$ 83,000
Liquidation Value [Member] \| Advisor [Member] \| Post Liquidation Date Agreement Monthly Supplemental Fee [Member]
Related Party Transaction [Line Items]
Fees paid to related parties		$ 100,000
Liquidation Value [Member] \| Advisor [Member] \| Post Liquidation Date Agreement Quarterly Supplemental Fee [Member]
Related Party Transaction [Line Items]
Fees paid to related parties		$ 50,000
Liquidation Value [Member] \| Service Provider and Affiliates [Member]
Related Party Transaction [Line Items]
Incentive fee, percentage of excess of hurdle amount			10.00%
Hurdle amount (in dollars per share)			$ 110
Liquidation Value [Member] \| Winthrop Advisor and its Affiliates [Member] \| Asset Management Fees and Compensation Reimbursements [Member]
Related Party Transaction [Line Items]
Asset management fees and compensation reimbursements				$ 1,200		$ 1,200