v3.26.1
Shareholder Report
 6 Months Ended
Apr. 30, 2026
USD ($)
Holding
Shareholder Report [Line Items]  
Document Type N-CSRS
Amendment Flag false
Registrant Name JOHN HANCOCK INVESTMENT TRUST II
Entity Central Index Key 0000743861
Entity Investment Company Type N-1A
Document Period End Date Apr. 30, 2026
C000178763 [Member]  
Shareholder Report [Line Items]  
Fund Name Financial Industries Fund
Class Name Class R6
Trading Symbol JFDRX
Annual or Semi-Annual Statement [Text Block] This semiannual shareholder report contains important information about the John Hancock Financial Industries Fund (the fund) for the period of November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at jhinvestments.com/documents. You can also request this information by contacting us at 800-225-5291.
Additional Information Phone Number 800-225-5291
Additional Information Website jhinvestments.com/documents
Expenses [Text Block]
What were the fund costs during the last six months ?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Financial Industries Fund
(Class R6/JFDRX)		 $46 0.90%
Expenses Paid, Amount $ 46
Expense Ratio, Percent 0.90%
Net Assets $ 268,664,675
Holdings Count | Holding 42
Investment Company Portfolio Turnover 29.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $268,664,675
Total number of portfolio holdings 42
Portfolio turnover rate 29%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing a percentage of the total net assets of the fund.
Top Ten Holdings
Citizens Financial Group, Inc. 4.8%
Citigroup, Inc. 4.7%
Morgan Stanley 4.6%
Fifth Third Bancorp 4.0%
Columbia Banking System, Inc. 3.8%
NN Group NV 3.5%
Popular, Inc. 3.3%
The Hartford Insurance Group, Inc. 3.2%
JPMorgan Chase & Co. 3.2%
Sumitomo Mitsui Trust Group, Inc. 3.1%
Industry Composition
Banks 52.0%
Capital markets 22.9%
Insurance 14.4%
Financial services 3.7%
Consumer finance 3.3%
Industrial REITs 2.0%
Short-term investments and other 1.7%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Citizens Financial Group, Inc. 4.8%
Citigroup, Inc. 4.7%
Morgan Stanley 4.6%
Fifth Third Bancorp 4.0%
Columbia Banking System, Inc. 3.8%
NN Group NV 3.5%
Popular, Inc. 3.3%
The Hartford Insurance Group, Inc. 3.2%
JPMorgan Chase & Co. 3.2%
Sumitomo Mitsui Trust Group, Inc. 3.1%
C000173131 [Member]  
Shareholder Report [Line Items]  
Fund Name Financial Industries Fund
Class Name Class I
Trading Symbol JFIFX
Annual or Semi-Annual Statement [Text Block] This semiannual shareholder report contains important information about the John Hancock Financial Industries Fund (the fund) for the period of November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at jhinvestments.com/documents. You can also request this information by contacting us at 800-225-5291.
Additional Information Phone Number 800-225-5291
Additional Information Website jhinvestments.com/documents
Expenses [Text Block]
What were the fund costs during the last six months ?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Financial Industries Fund
(Class I/JFIFX)		 $51 1.00%
Expenses Paid, Amount $ 51
Expense Ratio, Percent 1.00%
Net Assets $ 268,664,675
Holdings Count | Holding 42
Investment Company Portfolio Turnover 29.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $268,664,675
Total number of portfolio holdings 42
Portfolio turnover rate 29%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing a percentage of the total net assets of the fund.
Top Ten Holdings
Citizens Financial Group, Inc. 4.8%
Citigroup, Inc. 4.7%
Morgan Stanley 4.6%
Fifth Third Bancorp 4.0%
Columbia Banking System, Inc. 3.8%
NN Group NV 3.5%
Popular, Inc. 3.3%
The Hartford Insurance Group, Inc. 3.2%
JPMorgan Chase & Co. 3.2%
Sumitomo Mitsui Trust Group, Inc. 3.1%
Industry Composition
Banks 52.0%
Capital markets 22.9%
Insurance 14.4%
Financial services 3.7%
Consumer finance 3.3%
Industrial REITs 2.0%
Short-term investments and other 1.7%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Citizens Financial Group, Inc. 4.8%
Citigroup, Inc. 4.7%
Morgan Stanley 4.6%
Fifth Third Bancorp 4.0%
Columbia Banking System, Inc. 3.8%
NN Group NV 3.5%
Popular, Inc. 3.3%
The Hartford Insurance Group, Inc. 3.2%
JPMorgan Chase & Co. 3.2%
Sumitomo Mitsui Trust Group, Inc. 3.1%
C000001811 [Member]  
Shareholder Report [Line Items]  
Fund Name Financial Industries Fund
Class Name Class C
Trading Symbol FIDCX
Annual or Semi-Annual Statement [Text Block] This semiannual shareholder report contains important information about the John Hancock Financial Industries Fund (the fund) for the period of November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at jhinvestments.com/documents. You can also request this information by contacting us at 800-225-5291.
Additional Information Phone Number 800-225-5291
Additional Information Website jhinvestments.com/documents
Expenses [Text Block]
What were the fund costs during the last six months ?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Financial Industries Fund
(Class C/FIDCX)		 $103 2.00%
Expenses Paid, Amount $ 103
Expense Ratio, Percent 2.00%
Net Assets $ 268,664,675
Holdings Count | Holding 42
Investment Company Portfolio Turnover 29.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $268,664,675
Total number of portfolio holdings 42
Portfolio turnover rate 29%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing a percentage of the total net assets of the fund.
Top Ten Holdings
Citizens Financial Group, Inc. 4.8%
Citigroup, Inc. 4.7%
Morgan Stanley 4.6%
Fifth Third Bancorp 4.0%
Columbia Banking System, Inc. 3.8%
NN Group NV 3.5%
Popular, Inc. 3.3%
The Hartford Insurance Group, Inc. 3.2%
JPMorgan Chase & Co. 3.2%
Sumitomo Mitsui Trust Group, Inc. 3.1%
Industry Composition
Banks 52.0%
Capital markets 22.9%
Insurance 14.4%
Financial services 3.7%
Consumer finance 3.3%
Industrial REITs 2.0%
Short-term investments and other 1.7%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Citizens Financial Group, Inc. 4.8%
Citigroup, Inc. 4.7%
Morgan Stanley 4.6%
Fifth Third Bancorp 4.0%
Columbia Banking System, Inc. 3.8%
NN Group NV 3.5%
Popular, Inc. 3.3%
The Hartford Insurance Group, Inc. 3.2%
JPMorgan Chase & Co. 3.2%
Sumitomo Mitsui Trust Group, Inc. 3.1%
C000001809 [Member]  
Shareholder Report [Line Items]  
Fund Name Financial Industries Fund
Class Name Class A
Trading Symbol FIDAX
Annual or Semi-Annual Statement [Text Block] This semiannual shareholder report contains important information about the John Hancock Financial Industries Fund (the fund) for the period of November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at jhinvestments.com/documents. You can also request this information by contacting us at 800-225-5291.
Additional Information Phone Number 800-225-5291
Additional Information Website jhinvestments.com/documents
Expenses [Text Block]
What were the fund costs during the last six months ?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Financial Industries Fund
(Class A/FIDAX)		 $64 1.24%
Expenses Paid, Amount $ 64
Expense Ratio, Percent 1.24%
Net Assets $ 268,664,675
Holdings Count | Holding 42
Investment Company Portfolio Turnover 29.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $268,664,675
Total number of portfolio holdings 42
Portfolio turnover rate 29%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing a percentage of the total net assets of the fund.
Top Ten Holdings
Citizens Financial Group, Inc. 4.8%
Citigroup, Inc. 4.7%
Morgan Stanley 4.6%
Fifth Third Bancorp 4.0%
Columbia Banking System, Inc. 3.8%
NN Group NV 3.5%
Popular, Inc. 3.3%
The Hartford Insurance Group, Inc. 3.2%
JPMorgan Chase & Co. 3.2%
Sumitomo Mitsui Trust Group, Inc. 3.1%
Industry Composition
Banks 52.0%
Capital markets 22.9%
Insurance 14.4%
Financial services 3.7%
Consumer finance 3.3%
Industrial REITs 2.0%
Short-term investments and other 1.7%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Citizens Financial Group, Inc. 4.8%
Citigroup, Inc. 4.7%
Morgan Stanley 4.6%
Fifth Third Bancorp 4.0%
Columbia Banking System, Inc. 3.8%
NN Group NV 3.5%
Popular, Inc. 3.3%
The Hartford Insurance Group, Inc. 3.2%
JPMorgan Chase & Co. 3.2%
Sumitomo Mitsui Trust Group, Inc. 3.1%
C000001813 [Member]  
Shareholder Report [Line Items]  
Fund Name Regional Bank Fund
Class Name Class A
Trading Symbol FRBAX
Annual or Semi-Annual Statement [Text Block] This semiannual shareholder report contains important information about the John Hancock Regional Bank Fund (the fund) for the period of November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at jhinvestments.com/documents. You can also request this information by contacting us at 800-225-5291.
Additional Information Phone Number 800-225-5291
Additional Information Website jhinvestments.com/documents
Expenses [Text Block]
What were the fund costs during the last six months ?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Regional Bank Fund
(Class A/FRBAX)		 $64 1.19%
Expenses Paid, Amount $ 64
Expense Ratio, Percent 1.19%
Net Assets $ 873,859,174
Holdings Count | Holding 99
Investment Company Portfolio Turnover 2.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $873,859,174
Total number of portfolio holdings 99
Portfolio turnover rate 2%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing a percentage of the total net assets of the fund.
Top Ten Holdings
Pinnacle Financial Partners, Inc. 3.4%
Fifth Third Bancorp 3.1%
Huntington Bancshares, Inc. 3.1%
Citizens Financial Group, Inc. 3.0%
M&T Bank Corp. 3.0%
Regions Financial Corp. 2.6%
WSFS Financial Corp. 2.4%
Popular, Inc. 2.3%
U.S. Bancorp 2.3%
East West Bancorp, Inc. 2.2%
Industry Composition
Banks 99.8%
Short-term investments and other 0.2%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Pinnacle Financial Partners, Inc. 3.4%
Fifth Third Bancorp 3.1%
Huntington Bancshares, Inc. 3.1%
Citizens Financial Group, Inc. 3.0%
M&T Bank Corp. 3.0%
Regions Financial Corp. 2.6%
WSFS Financial Corp. 2.4%
Popular, Inc. 2.3%
U.S. Bancorp 2.3%
East West Bancorp, Inc. 2.2%
C000001815 [Member]  
Shareholder Report [Line Items]  
Fund Name Regional Bank Fund
Class Name Class C
Trading Symbol FRBCX
Annual or Semi-Annual Statement [Text Block] This semiannual shareholder report contains important information about the John Hancock Regional Bank Fund (the fund) for the period of November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at jhinvestments.com/documents. You can also request this information by contacting us at 800-225-5291.
Additional Information Phone Number 800-225-5291
Additional Information Website jhinvestments.com/documents
Expenses [Text Block]
What were the fund costs during the last six months ?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Regional Bank Fund
(Class C/FRBCX)		 $105 1.94%
Expenses Paid, Amount $ 105
Expense Ratio, Percent 1.94%
Net Assets $ 873,859,174
Holdings Count | Holding 99
Investment Company Portfolio Turnover 2.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $873,859,174
Total number of portfolio holdings 99
Portfolio turnover rate 2%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing a percentage of the total net assets of the fund.
Top Ten Holdings
Pinnacle Financial Partners, Inc. 3.4%
Fifth Third Bancorp 3.1%
Huntington Bancshares, Inc. 3.1%
Citizens Financial Group, Inc. 3.0%
M&T Bank Corp. 3.0%
Regions Financial Corp. 2.6%
WSFS Financial Corp. 2.4%
Popular, Inc. 2.3%
U.S. Bancorp 2.3%
East West Bancorp, Inc. 2.2%
Industry Composition
Banks 99.8%
Short-term investments and other 0.2%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Pinnacle Financial Partners, Inc. 3.4%
Fifth Third Bancorp 3.1%
Huntington Bancshares, Inc. 3.1%
Citizens Financial Group, Inc. 3.0%
M&T Bank Corp. 3.0%
Regions Financial Corp. 2.6%
WSFS Financial Corp. 2.4%
Popular, Inc. 2.3%
U.S. Bancorp 2.3%
East West Bancorp, Inc. 2.2%
C000173132 [Member]  
Shareholder Report [Line Items]  
Fund Name Regional Bank Fund
Class Name Class I
Trading Symbol JRBFX
Annual or Semi-Annual Statement [Text Block] This semiannual shareholder report contains important information about the John Hancock Regional Bank Fund (the fund) for the period of November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at jhinvestments.com/documents. You can also request this information by contacting us at 800-225-5291.
Additional Information Phone Number 800-225-5291
Additional Information Website jhinvestments.com/documents
Expenses [Text Block]
What were the fund costs during the last six months ?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Regional Bank Fund
(Class I/JRBFX)		 $51 0.94%
Expenses Paid, Amount $ 51
Expense Ratio, Percent 0.94%
Net Assets $ 873,859,174
Holdings Count | Holding 99
Investment Company Portfolio Turnover 2.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $873,859,174
Total number of portfolio holdings 99
Portfolio turnover rate 2%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing a percentage of the total net assets of the fund.
Top Ten Holdings
Pinnacle Financial Partners, Inc. 3.4%
Fifth Third Bancorp 3.1%
Huntington Bancshares, Inc. 3.1%
Citizens Financial Group, Inc. 3.0%
M&T Bank Corp. 3.0%
Regions Financial Corp. 2.6%
WSFS Financial Corp. 2.4%
Popular, Inc. 2.3%
U.S. Bancorp 2.3%
East West Bancorp, Inc. 2.2%
Industry Composition
Banks 99.8%
Short-term investments and other 0.2%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Pinnacle Financial Partners, Inc. 3.4%
Fifth Third Bancorp 3.1%
Huntington Bancshares, Inc. 3.1%
Citizens Financial Group, Inc. 3.0%
M&T Bank Corp. 3.0%
Regions Financial Corp. 2.6%
WSFS Financial Corp. 2.4%
Popular, Inc. 2.3%
U.S. Bancorp 2.3%
East West Bancorp, Inc. 2.2%
C000178764 [Member]  
Shareholder Report [Line Items]  
Fund Name Regional Bank Fund
Class Name Class R6
Trading Symbol JRGRX
Annual or Semi-Annual Statement [Text Block] This semiannual shareholder report contains important information about the John Hancock Regional Bank Fund (the fund) for the period of November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at jhinvestments.com/documents. You can also request this information by contacting us at 800-225-5291.
Additional Information Phone Number 800-225-5291
Additional Information Website jhinvestments.com/documents
Expenses [Text Block]
What were the fund costs during the last six months ?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Regional Bank Fund
(Class R6/JRGRX)		 $45 0.84%
Expenses Paid, Amount $ 45
Expense Ratio, Percent 0.84%
Net Assets $ 873,859,174
Holdings Count | Holding 99
Investment Company Portfolio Turnover 2.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $873,859,174
Total number of portfolio holdings 99
Portfolio turnover rate 2%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing a percentage of the total net assets of the fund.
Top Ten Holdings
Pinnacle Financial Partners, Inc. 3.4%
Fifth Third Bancorp 3.1%
Huntington Bancshares, Inc. 3.1%
Citizens Financial Group, Inc. 3.0%
M&T Bank Corp. 3.0%
Regions Financial Corp. 2.6%
WSFS Financial Corp. 2.4%
Popular, Inc. 2.3%
U.S. Bancorp 2.3%
East West Bancorp, Inc. 2.2%
Industry Composition
Banks 99.8%
Short-term investments and other 0.2%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Pinnacle Financial Partners, Inc. 3.4%
Fifth Third Bancorp 3.1%
Huntington Bancshares, Inc. 3.1%
Citizens Financial Group, Inc. 3.0%
M&T Bank Corp. 3.0%
Regions Financial Corp. 2.6%
WSFS Financial Corp. 2.4%
Popular, Inc. 2.3%
U.S. Bancorp 2.3%
East West Bancorp, Inc. 2.2%