v3.25.1
Shareholder Report
 6 Months Ended
Mar. 31, 2025
USD ($)
Holding
Shareholder Report [Line Items]  
Document Type N-CSRS
Amendment Flag false
Registrant Name NexPoint Funds II
Entity Central Index Key 0000891079
Entity Investment Company Type N-1A
Document Period End Date Mar. 31, 2025
C000004396  
Shareholder Report [Line Items]  
Fund Name NexPoint Climate Tech Fund
Class Name Class A
Trading Symbol HSZAX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Class A of the NexPoint Climate Tech Fund (the "Fund") for the period from October 1, 2024 to March 31, 2025.
Shareholder Report Annual or Semi-Annual Semi-Annual Shareholder Report
Additional Information [Text Block] You can find additional information about the Fund at https://www.nexpoint.com/funds/climate-tech-fund/. You can also request this information by contacting us at 1-877-665-1287. 
Additional Information Phone Number 1-877-665-1287
Additional Information Website https://www.nexpoint.com/funds/climate-tech-fund/
Expenses [Text Block]

What were the Fund costs for the last six months?

(based on a hypothetical $10,000 investment) 

Fund Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
NexPoint Climate Tech Fund, Class A
$82
1.73%
Expenses Paid, Amount $ 82
Expense Ratio, Percent 1.73%
AssetsNet $ 5,274,000
Holdings Count | Holding 50
Advisory Fees Paid, Amount $ 0
InvestmentCompanyPortfolioTurnover 26.00%
Holdings [Text Block]

Asset WeightingsFootnote Reference*

Group By Sector Chart
Value
Value
Exchange Traded Funds
-3.0%
Warrants
0.0%
Rights
0.1%
Convertible Bonds
0.7%
Repurchase Agreements
1.3%
Cash Equivalents
1.7%
Master Limited Partnerships
3.6%
Preferred Stock
5.6%
Corporate Obligations
7.1%
Common Stock
60.0%
Footnote Description
Footnote*
 Percentages are calculated based on total net assets.

Top Ten Holdings

Holding Name
Percentage of Total Net AssetsFootnote Reference(A)
Atlantica Sustainable Infrastructure PLC
7.1%
RWE
7.0%
Clearway Energy, Inc., Cl C
6.9%
NextEra Energy, Inc., 6.93%
5.6%
Teck Resources, Ltd., Cl B
5.2%
Brookfield Renewable Partners L.P.
4.0%
Ecovyst, Inc.
3.9%
MP Materials Corp.
3.7%
Energy Transfer L.P.
3.6%
Darling Ingredients, Inc.
3.3%
Footnote Description
Footnote(A)
 Cash Equivalents are not shown in the top ten chart.
Updated Prospectus Phone Number 1-877-665-1287
Updated Prospectus Web Address https://www.nexpoint.com/funds/climate-tech-fund/
C000004398  
Shareholder Report [Line Items]  
Fund Name NexPoint Climate Tech Fund
Class Name Class C
Trading Symbol HSZCX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Class C of the NexPoint Climate Tech Fund (the "Fund") for the period from October 1, 2024 to March 31, 2025.
Shareholder Report Annual or Semi-Annual Semi-Annual Shareholder Report
Additional Information [Text Block] You can find additional information about the Fund at https://www.nexpoint.com/funds/climate-tech-fund/. You can also request this information by contacting us at 1-877-665-1287. 
Additional Information Phone Number 1-877-665-1287
Additional Information Website https://www.nexpoint.com/funds/climate-tech-fund/
Expenses [Text Block]

What were the Fund costs for the last six months?

(based on a hypothetical $10,000 investment) 

Fund Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
NexPoint Climate Tech Fund, Class C
$117
2.47%
Expenses Paid, Amount $ 117
Expense Ratio, Percent 2.47%
AssetsNet $ 5,274,000
Holdings Count | Holding 50
Advisory Fees Paid, Amount $ 0
InvestmentCompanyPortfolioTurnover 26.00%
Holdings [Text Block]

Asset WeightingsFootnote Reference*

Group By Sector Chart
Value
Value
Exchange Traded Funds
-3.0%
Warrants
0.0%
Rights
0.1%
Convertible Bonds
0.7%
Repurchase Agreements
1.3%
Cash Equivalents
1.7%
Master Limited Partnerships
3.6%
Preferred Stock
5.6%
Corporate Obligations
7.1%
Common Stock
60.0%
Footnote Description
Footnote*
 Percentages are calculated based on total net assets.

Top Ten Holdings

Holding Name
Percentage of Total Net AssetsFootnote Reference(A)
Atlantica Sustainable Infrastructure PLC
7.1%
RWE
7.0%
Clearway Energy, Inc., Cl C
6.9%
NextEra Energy, Inc., 6.93%
5.6%
Teck Resources, Ltd., Cl B
5.2%
Brookfield Renewable Partners L.P.
4.0%
Ecovyst, Inc.
3.9%
MP Materials Corp.
3.7%
Energy Transfer L.P.
3.6%
Darling Ingredients, Inc.
3.3%
Footnote Description
Footnote(A)
 Cash Equivalents are not shown in the top ten chart.
Updated Prospectus Phone Number 1-877-665-1287
Updated Prospectus Web Address https://www.nexpoint.com/funds/climate-tech-fund/
C000004399  
Shareholder Report [Line Items]  
Fund Name NexPoint Climate Tech Fund
Class Name Class Y
Trading Symbol HSZYX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Class Y of the NexPoint Climate Tech Fund (the "Fund") for the period from October 1, 2024 to March 31, 2025.
Shareholder Report Annual or Semi-Annual Semi-Annual Shareholder Report
Additional Information [Text Block] You can find additional information about the Fund at https://www.nexpoint.com/funds/climate-tech-fund/. You can also request this information by contacting us at 1-877-665-1287. 
Additional Information Phone Number 1-877-665-1287
Additional Information Website https://www.nexpoint.com/funds/climate-tech-fund/
Expenses [Text Block]

What were the Fund costs for the last six months?

(based on a hypothetical $10,000 investment) 

Fund Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
NexPoint Climate Tech Fund, Class Y
$70
1.48%
Expenses Paid, Amount $ 70
Expense Ratio, Percent 1.48%
AssetsNet $ 5,274,000
Holdings Count | Holding 50
Advisory Fees Paid, Amount $ 0
InvestmentCompanyPortfolioTurnover 26.00%
Holdings [Text Block]

Asset WeightingsFootnote Reference*

Group By Sector Chart
Value
Value
Exchange Traded Funds
-3.0%
Warrants
0.0%
Rights
0.1%
Convertible Bonds
0.7%
Repurchase Agreements
1.3%
Cash Equivalents
1.7%
Master Limited Partnerships
3.6%
Preferred Stock
5.6%
Corporate Obligations
7.1%
Common Stock
60.0%
Footnote Description
Footnote*
 Percentages are calculated based on total net assets.

Top Ten Holdings

Holding Name
Percentage of Total Net AssetsFootnote Reference(A)
Atlantica Sustainable Infrastructure PLC
7.1%
RWE
7.0%
Clearway Energy, Inc., Cl C
6.9%
NextEra Energy, Inc., 6.93%
5.6%
Teck Resources, Ltd., Cl B
5.2%
Brookfield Renewable Partners L.P.
4.0%
Ecovyst, Inc.
3.9%
MP Materials Corp.
3.7%
Energy Transfer L.P.
3.6%
Darling Ingredients, Inc.
3.3%
Footnote Description
Footnote(A)
 Cash Equivalents are not shown in the top ten chart.
Updated Prospectus Phone Number 1-877-665-1287
Updated Prospectus Web Address https://www.nexpoint.com/funds/climate-tech-fund/