Subsequent Events - Additional Information (Details) - Subsequent Events - USD ($) $ / shares in Units, $ in Thousands	Apr. 25, 2022	Apr. 01, 2022
Subsequent Event [Line Items]
Dividends payable, amount per share	$ 0.38
Dividends payable, date declared	Apr. 25, 2022
Dividends payable, date to be paid	Jun. 30, 2022
Dividends payable, date of record	Jun. 15, 2022
Purchase Price		$ 143,400
DST purchase amount, OP Units		26,558
DST purchase amount, OP Units value		$ 2,600
DST purchase amount, cash		$ 71,100
DST purchase amount per share		$ 98.30

Business combination consideration transferred units of partnership interests issued and issuable.

No definition available.

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Namespace Prefix:	nxrt_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Business combination consideration transferred units of partnership interests value issued and issuable.

+ References

No definition available.

+ Details

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Namespace Prefix:	nxrt_
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- Definition

Units of partner issued business acquisition share price.

+ References

No definition available.

+ Details

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- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 30
-Paragraph 8
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-Section 30
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Balance Type:	credit
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- Definition

Date the declared dividend will be paid, in YYYY-MM-DD format.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=123431023&loc=d3e4304-108586

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

The per share amount of a dividend declared, but not paid, as of the financial reporting date.

+ References

+ Details

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Period Type:	instant

- Definition

Date the dividend to be paid was declared, in YYYY-MM-DD format.

+ References

+ Details

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- Definition

Date the holder must own the stock to be entitled to the dividend, in YYYY-MM-DD format.

+ References

No definition available.

+ Details

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)(1)
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+ Details

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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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