This semi-annual shareholder report contains important information about Blue Chip Fund (the "Fund") for the period of September 1, 2025 to February 28, 2026.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

You can find additional information about the Fund at www.PrincipalAM.com/prospectuses or you can request information by contacting us at 1-800-222-5852 or emailing prospectus@principalfunds.com.

Additional Information Phone Number

1-800-222-5852

Additional Information Email

<span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: justify; text-align-last: left; white-space-collapse: preserve-breaks;">prospectus@principalfunds.com</span>

Additional Information Website

Expenses [Text Block]

What were the Fund costs for the last six months?

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
Class A	$44	0.94%^{Footnote Reference*}

Footnote	Description
Footnote^*	Computed on an annualized basis.

Expenses Paid, Amount

$ 44

Expense Ratio, Percent

0.94%

^[1]

AssetsNet

$ 8,485,976,000

Holdings Count | Holding

InvestmentCompanyPortfolioTurnover

28.20%

Additional Fund Statistics [Text Block]

Fund Statistics

Net Assets (amount in thousands)$8,485,976
Total Number of Portfolio Holdings39
Portfolio Turnover Rate (annualized)28.2%

Holdings [Text Block]

Portfolio Allocation

Table Summary
Asset Weighting	Percent of Net Assets
Common Stocks	100.08%
Investment Companies	0.02%
Other Assets and Liabilities	(0.10)%
Total Net Assets	100.00%

Sector Allocation

Table Summary
Sector	Percent of Net Assets
Technology	33.07%
Communications	26.86%
Financial	21.79%
Industrial	8.77%
Consumer, Non-cyclical	6.36%
Consumer, Cyclical	2.55%
Basic Materials	0.68%
Money Market Funds	0.02%
Other Assets and Liabilities	(0.10)%
Total Net Assets	100.00%

FV823SARA-0

C000131724

Shareholder Report [Line Items]

Fund Name

Blue Chip Fund

Class Name

Class C

Trading Symbol

PBLCX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Blue Chip Fund (the "Fund") for the period of September 1, 2025 to February 28, 2026.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

You can find additional information about the Fund at www.PrincipalAM.com/prospectuses or you can request information by contacting us at 1-800-222-5852 or emailing prospectus@principalfunds.com.

Additional Information Phone Number

1-800-222-5852

Additional Information Email

Additional Information Website

Expenses [Text Block]

What were the Fund costs for the last six months?

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
Class C	$79	1.68%^{Footnote Reference*}

Footnote	Description
Footnote^*	Computed on an annualized basis.

Expenses Paid, Amount

$ 79

Expense Ratio, Percent

1.68%

^[2]

AssetsNet

$ 8,485,976,000

Holdings Count | Holding

InvestmentCompanyPortfolioTurnover

28.20%

Additional Fund Statistics [Text Block]

Fund Statistics

Net Assets (amount in thousands)$8,485,976
Total Number of Portfolio Holdings39
Portfolio Turnover Rate (annualized)28.2%

Holdings [Text Block]

Portfolio Allocation

Table Summary
Asset Weighting	Percent of Net Assets
Common Stocks	100.08%
Investment Companies	0.02%
Other Assets and Liabilities	(0.10)%
Total Net Assets	100.00%

Sector Allocation

Table Summary
Sector	Percent of Net Assets
Technology	33.07%
Communications	26.86%
Financial	21.79%
Industrial	8.77%
Consumer, Non-cyclical	6.36%
Consumer, Cyclical	2.55%
Basic Materials	0.68%
Money Market Funds	0.02%
Other Assets and Liabilities	(0.10)%
Total Net Assets	100.00%

FV823SARC-0

C000193661

Shareholder Report [Line Items]

Fund Name

Blue Chip Fund

Class Name

Class J

Trading Symbol

PBCJX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Blue Chip Fund (the "Fund") for the period of September 1, 2025 to February 28, 2026.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

You can find additional information about the Fund at www.PrincipalAM.com/prospectuses or you can request information by contacting us at 1-800-222-5852 or emailing prospectus@principalfunds.com.

Additional Information Phone Number

1-800-222-5852

Additional Information Email

Additional Information Website

Expenses [Text Block]

What were the Fund costs for the last six months?

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
Class J	$36	0.76%^{Footnote Reference*}

Footnote	Description
Footnote^*	Computed on an annualized basis.

Expenses Paid, Amount

$ 36

Expense Ratio, Percent

0.76%

^[3]

AssetsNet

$ 8,485,976,000

Holdings Count | Holding

InvestmentCompanyPortfolioTurnover

28.20%

Additional Fund Statistics [Text Block]

Fund Statistics

Net Assets (amount in thousands)$8,485,976
Total Number of Portfolio Holdings39
Portfolio Turnover Rate (annualized)28.2%

Holdings [Text Block]

Portfolio Allocation

Table Summary
Asset Weighting	Percent of Net Assets
Common Stocks	100.08%
Investment Companies	0.02%
Other Assets and Liabilities	(0.10)%
Total Net Assets	100.00%

Sector Allocation

Table Summary
Sector	Percent of Net Assets
Technology	33.07%
Communications	26.86%
Financial	21.79%
Industrial	8.77%
Consumer, Non-cyclical	6.36%
Consumer, Cyclical	2.55%
Basic Materials	0.68%
Money Market Funds	0.02%
Other Assets and Liabilities	(0.10)%
Total Net Assets	100.00%

FV823SARJ-0

C000115413

Shareholder Report [Line Items]

Fund Name

Blue Chip Fund

Class Name

Institutional

Trading Symbol

PBCKX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Blue Chip Fund (the "Fund") for the period of September 1, 2025 to February 28, 2026.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

You can find additional information about the Fund at www.PrincipalAM.com/prospectuses or you can request information by contacting us at 1-800-222-5852 or emailing prospectus@principalfunds.com.

Additional Information Phone Number

1-800-222-5852

Additional Information Email

Additional Information Website

Expenses [Text Block]

What were the Fund costs for the last six months?

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
Institutional	$31	0.66%^{Footnote Reference*}

Footnote	Description
Footnote^*	Computed on an annualized basis.

Expenses Paid, Amount

$ 31

Expense Ratio, Percent

0.66%

^[4]

AssetsNet

$ 8,485,976,000

Holdings Count | Holding

InvestmentCompanyPortfolioTurnover

28.20%

Additional Fund Statistics [Text Block]

Fund Statistics

Net Assets (amount in thousands)$8,485,976
Total Number of Portfolio Holdings39
Portfolio Turnover Rate (annualized)28.2%

Holdings [Text Block]

Portfolio Allocation

Table Summary
Asset Weighting	Percent of Net Assets
Common Stocks	100.08%
Investment Companies	0.02%
Other Assets and Liabilities	(0.10)%
Total Net Assets	100.00%

Sector Allocation

Table Summary
Sector	Percent of Net Assets
Technology	33.07%
Communications	26.86%
Financial	21.79%
Industrial	8.77%
Consumer, Non-cyclical	6.36%
Consumer, Cyclical	2.55%
Basic Materials	0.68%
Money Market Funds	0.02%
Other Assets and Liabilities	(0.10)%
Total Net Assets	100.00%

FV823SARI-0

C000167694

Shareholder Report [Line Items]

Fund Name

Blue Chip Fund

Class Name

R-3

Trading Symbol

PGBEX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Blue Chip Fund (the "Fund") for the period of September 1, 2025 to February 28, 2026.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

You can find additional information about the Fund at www.PrincipalAM.com/prospectuses or you can request information by contacting us at 1-800-222-5852 or emailing prospectus@principalfunds.com.

Additional Information Phone Number

1-800-222-5852

Additional Information Email

Additional Information Website

Expenses [Text Block]

What were the Fund costs for the last six months?

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
R-3	$54	1.14%^{Footnote Reference*}

Footnote	Description
Footnote^*	Computed on an annualized basis.

Expenses Paid, Amount

$ 54

Expense Ratio, Percent

1.14%

^[5]

AssetsNet

$ 8,485,976,000

Holdings Count | Holding

InvestmentCompanyPortfolioTurnover

28.20%

Additional Fund Statistics [Text Block]

Fund Statistics

Net Assets (amount in thousands)$8,485,976
Total Number of Portfolio Holdings39
Portfolio Turnover Rate (annualized)28.2%

Holdings [Text Block]

Portfolio Allocation

Table Summary
Asset Weighting	Percent of Net Assets
Common Stocks	100.08%
Investment Companies	0.02%
Other Assets and Liabilities	(0.10)%
Total Net Assets	100.00%

Sector Allocation

Table Summary
Sector	Percent of Net Assets
Technology	33.07%
Communications	26.86%
Financial	21.79%
Industrial	8.77%
Consumer, Non-cyclical	6.36%
Consumer, Cyclical	2.55%
Basic Materials	0.68%
Money Market Funds	0.02%
Other Assets and Liabilities	(0.10)%
Total Net Assets	100.00%

FV823SARR3-0

C000167696

Shareholder Report [Line Items]

Fund Name

Blue Chip Fund

Class Name

R-5

Trading Symbol

PGBGX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Blue Chip Fund (the "Fund") for the period of September 1, 2025 to February 28, 2026.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

You can find additional information about the Fund at www.PrincipalAM.com/prospectuses or you can request information by contacting us at 1-800-222-5852 or emailing prospectus@principalfunds.com.

Additional Information Phone Number

1-800-222-5852

Additional Information Email

Additional Information Website

Expenses [Text Block]

What were the Fund costs for the last six months?

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
R-5	$39	0.83%^{Footnote Reference*}

Footnote	Description
Footnote^*	Computed on an annualized basis.

Expenses Paid, Amount

$ 39

Expense Ratio, Percent

0.83%

^[6]

AssetsNet

$ 8,485,976,000

Holdings Count | Holding

InvestmentCompanyPortfolioTurnover

28.20%

Additional Fund Statistics [Text Block]

Fund Statistics

Net Assets (amount in thousands)$8,485,976
Total Number of Portfolio Holdings39
Portfolio Turnover Rate (annualized)28.2%

Holdings [Text Block]

Portfolio Allocation

Table Summary
Asset Weighting	Percent of Net Assets
Common Stocks	100.08%
Investment Companies	0.02%
Other Assets and Liabilities	(0.10)%
Total Net Assets	100.00%

Sector Allocation

Table Summary
Sector	Percent of Net Assets
Technology	33.07%
Communications	26.86%
Financial	21.79%
Industrial	8.77%
Consumer, Non-cyclical	6.36%
Consumer, Cyclical	2.55%
Basic Materials	0.68%
Money Market Funds	0.02%
Other Assets and Liabilities	(0.10)%
Total Net Assets	100.00%

FV823SARR5-0

C000176331

Shareholder Report [Line Items]

Fund Name

Blue Chip Fund

Class Name

R-6

Trading Symbol

PGBHX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Blue Chip Fund (the "Fund") for the period of September 1, 2025 to February 28, 2026.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

You can find additional information about the Fund at www.PrincipalAM.com/prospectuses or you can request information by contacting us at 1-800-222-5852 or emailing prospectus@principalfunds.com.

Additional Information Phone Number

1-800-222-5852

Additional Information Email

Additional Information Website

Expenses [Text Block]

What were the Fund costs for the last six months?

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
R-6	$27	0.57%^{Footnote Reference*}

Footnote	Description
Footnote^*	Computed on an annualized basis.

Expenses Paid, Amount

$ 27

Expense Ratio, Percent

0.57%

^[7]

AssetsNet

$ 8,485,976,000

Holdings Count | Holding

InvestmentCompanyPortfolioTurnover

28.20%

Additional Fund Statistics [Text Block]

Fund Statistics

Net Assets (amount in thousands)$8,485,976
Total Number of Portfolio Holdings39
Portfolio Turnover Rate (annualized)28.2%

Holdings [Text Block]

Portfolio Allocation

Table Summary
Asset Weighting	Percent of Net Assets
Common Stocks	100.08%
Investment Companies	0.02%
Other Assets and Liabilities	(0.10)%
Total Net Assets	100.00%

Sector Allocation

Table Summary
Sector	Percent of Net Assets
Technology	33.07%
Communications	26.86%
Financial	21.79%
Industrial	8.77%
Consumer, Non-cyclical	6.36%
Consumer, Cyclical	2.55%
Basic Materials	0.68%
Money Market Funds	0.02%
Other Assets and Liabilities	(0.10)%
Total Net Assets	100.00%

FV823SARR6-0

C000085837

Shareholder Report [Line Items]

Fund Name

Bond Market Index Fund

Class Name

Class J

Trading Symbol

PBIJX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Bond Market Index Fund (the "Fund") for the period of September 1, 2025 to February 28, 2026.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

You can find additional information about the Fund at www.PrincipalAM.com/prospectuses or you can request information by contacting us at 1-800-222-5852 or emailing prospectus@principalfunds.com.

Additional Information Phone Number

1-800-222-5852

Additional Information Email

Additional Information Website

Expenses [Text Block]

What were the Fund costs for the last six months?

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
Class J	$20	0.40%^{Footnote Reference*}

Footnote	Description
Footnote^*	Computed on an annualized basis.

Expenses Paid, Amount

$ 20

Expense Ratio, Percent

0.40%

^[8]

AssetsNet

$ 2,831,002,000

Holdings Count | Holding

4,041

InvestmentCompanyPortfolioTurnover

42.10%

Additional Fund Statistics [Text Block]

Fund Statistics

Net Assets (amount in thousands)$2,831,002
Total Number of Portfolio Holdings4,041
Portfolio Turnover Rate (annualized)42.1%

Holdings [Text Block]

Portfolio Allocation

Table Summary
Asset Weighting	Percent of Net Assets
U.S. Government & Government Agency Obligations	71.12%
Bonds	27.17%
Investment Companies	2.89%
Municipal Bonds	0.10%
Other Assets and Liabilities	(1.28)%
Total Net Assets	100.00%

Sector Allocation

Table Summary
Sector	Percent of Net Assets
Government	49.35%
Mortgage Securities	25.07%
Financial	7.71%
Consumer, Non-cyclical	4.28%
Money Market Funds	2.42%
Communications	2.31%
Utilities	2.28%
Technology	1.88%
Industrial	1.84%
Energy	1.78%
Consumer, Cyclical	1.30%
Basic Materials	0.49%
Exchange-Traded Funds	0.47%
Revenue Bonds	0.05%
General Obligation Unlimited	0.04%
Insured	0.01%
Other Assets and Liabilities	(1.28)%
Total Net Assets	100.00%

FV824SARJ-0

C000082026

Shareholder Report [Line Items]

Fund Name

Bond Market Index Fund

Class Name

Institutional

Trading Symbol

PNIIX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Bond Market Index Fund (the "Fund") for the period of September 1, 2025 to February 28, 2026.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

You can find additional information about the Fund at www.PrincipalAM.com/prospectuses or you can request information by contacting us at 1-800-222-5852 or emailing prospectus@principalfunds.com.

Additional Information Phone Number

1-800-222-5852

Additional Information Email

Additional Information Website

Expenses [Text Block]

What were the Fund costs for the last six months?

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
Institutional	$6	0.12%^{Footnote Reference*}

Footnote	Description
Footnote^*	Computed on an annualized basis.

Expenses Paid, Amount

$ 6

Expense Ratio, Percent

0.12%

^[9]

AssetsNet

$ 2,831,002,000

Holdings Count | Holding

4,041

InvestmentCompanyPortfolioTurnover

42.10%

Additional Fund Statistics [Text Block]

Fund Statistics

Net Assets (amount in thousands)$2,831,002
Total Number of Portfolio Holdings4,041
Portfolio Turnover Rate (annualized)42.1%

Holdings [Text Block]

Portfolio Allocation

Table Summary
Asset Weighting	Percent of Net Assets
U.S. Government & Government Agency Obligations	71.12%
Bonds	27.17%
Investment Companies	2.89%
Municipal Bonds	0.10%
Other Assets and Liabilities	(1.28)%
Total Net Assets	100.00%

Sector Allocation

Table Summary
Sector	Percent of Net Assets
Government	49.35%
Mortgage Securities	25.07%
Financial	7.71%
Consumer, Non-cyclical	4.28%
Money Market Funds	2.42%
Communications	2.31%
Utilities	2.28%
Technology	1.88%
Industrial	1.84%
Energy	1.78%
Consumer, Cyclical	1.30%
Basic Materials	0.49%
Exchange-Traded Funds	0.47%
Revenue Bonds	0.05%
General Obligation Unlimited	0.04%
Insured	0.01%
Other Assets and Liabilities	(1.28)%
Total Net Assets	100.00%

FV824SARI-0

C000082029

Shareholder Report [Line Items]

Fund Name

Bond Market Index Fund

Class Name

R-3

Trading Symbol

PBOIX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Bond Market Index Fund (the "Fund") for the period of September 1, 2025 to February 28, 2026.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

You can find additional information about the Fund at www.PrincipalAM.com/prospectuses or you can request information by contacting us at 1-800-222-5852 or emailing prospectus@principalfunds.com.

Additional Information Phone Number

1-800-222-5852

Additional Information Email

Additional Information Website

Expenses [Text Block]

What were the Fund costs for the last six months?

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
R-3	$35	0.69%^{Footnote Reference*}

Footnote	Description
Footnote^*	Computed on an annualized basis.

Expenses Paid, Amount

$ 35

Expense Ratio, Percent

0.69%

^[10]

AssetsNet

$ 2,831,002,000

Holdings Count | Holding

4,041

InvestmentCompanyPortfolioTurnover

42.10%

Additional Fund Statistics [Text Block]

Fund Statistics

Net Assets (amount in thousands)$2,831,002
Total Number of Portfolio Holdings4,041
Portfolio Turnover Rate (annualized)42.1%

Holdings [Text Block]

Portfolio Allocation

Table Summary
Asset Weighting	Percent of Net Assets
U.S. Government & Government Agency Obligations	71.12%
Bonds	27.17%
Investment Companies	2.89%
Municipal Bonds	0.10%
Other Assets and Liabilities	(1.28)%
Total Net Assets	100.00%

Sector Allocation

Table Summary
Sector	Percent of Net Assets
Government	49.35%
Mortgage Securities	25.07%
Financial	7.71%
Consumer, Non-cyclical	4.28%
Money Market Funds	2.42%
Communications	2.31%
Utilities	2.28%
Technology	1.88%
Industrial	1.84%
Energy	1.78%
Consumer, Cyclical	1.30%
Basic Materials	0.49%
Exchange-Traded Funds	0.47%
Revenue Bonds	0.05%
General Obligation Unlimited	0.04%
Insured	0.01%
Other Assets and Liabilities	(1.28)%
Total Net Assets	100.00%

FV824SARR3-0

C000082031

Shareholder Report [Line Items]

Fund Name

Bond Market Index Fund

Class Name

R-5

Trading Symbol

PBIQX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Bond Market Index Fund (the "Fund") for the period of September 1, 2025 to February 28, 2026.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

You can find additional information about the Fund at www.PrincipalAM.com/prospectuses or you can request information by contacting us at 1-800-222-5852 or emailing prospectus@principalfunds.com.

Additional Information Phone Number

1-800-222-5852

Additional Information Email

Additional Information Website

Expenses [Text Block]

What were the Fund costs for the last six months?

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
R-5	$19	0.38%^{Footnote Reference*}

Footnote	Description
Footnote^*	Computed on an annualized basis.

Expenses Paid, Amount

$ 19

Expense Ratio, Percent

0.38%

^[11]

AssetsNet

$ 2,831,002,000

Holdings Count | Holding

4,041

InvestmentCompanyPortfolioTurnover

42.10%

Additional Fund Statistics [Text Block]

Fund Statistics

Net Assets (amount in thousands)$2,831,002
Total Number of Portfolio Holdings4,041
Portfolio Turnover Rate (annualized)42.1%

Holdings [Text Block]

Portfolio Allocation

Table Summary
Asset Weighting	Percent of Net Assets
U.S. Government & Government Agency Obligations	71.12%
Bonds	27.17%
Investment Companies	2.89%
Municipal Bonds	0.10%
Other Assets and Liabilities	(1.28)%
Total Net Assets	100.00%

Sector Allocation

Table Summary
Sector	Percent of Net Assets
Government	49.35%
Mortgage Securities	25.07%
Financial	7.71%
Consumer, Non-cyclical	4.28%
Money Market Funds	2.42%
Communications	2.31%
Utilities	2.28%
Technology	1.88%
Industrial	1.84%
Energy	1.78%
Consumer, Cyclical	1.30%
Basic Materials	0.49%
Exchange-Traded Funds	0.47%
Revenue Bonds	0.05%
General Obligation Unlimited	0.04%
Insured	0.01%
Other Assets and Liabilities	(1.28)%
Total Net Assets	100.00%

FV824SARR5-0

C000129138

Shareholder Report [Line Items]

Fund Name

Capital Securities Fund

Class Name

Class S

Trading Symbol

PCSFX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Capital Securities Fund (the "Fund") for the period of September 1, 2025 to February 28, 2026.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

You can find additional information about the Fund at www.PrincipalAM.com/prospectuses or you can request information by contacting us at 1-800-222-5852 or emailing prospectus@principalfunds.com.

Additional Information Phone Number

1-800-222-5852

Additional Information Email

Additional Information Website

Expenses [Text Block]

What were the Fund costs for the last six months?

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
Class S	$0	0.00%^{Footnote Reference*}

Footnote	Description
Footnote^*	Computed on an annualized basis.

Expenses Paid, Amount

$ 0

Expense Ratio, Percent

0.00%

^[12]

AssetsNet

$ 955,168,000

Holdings Count | Holding

186

InvestmentCompanyPortfolioTurnover

38.20%

Additional Fund Statistics [Text Block]

Fund Statistics

Net Assets (amount in thousands)$955,168
Total Number of Portfolio Holdings186
Portfolio Turnover Rate (annualized)38.2%

Holdings [Text Block]

Portfolio Allocation

Table Summary
Asset Weighting	Percent of Net Assets
Bonds	96.85%
Investment Companies	2.82%
Preferred Stocks	1.27%
Other Assets and Liabilities	(0.94)%
Total Net Assets	100.00%

Sector Allocation

Table Summary
Sector	Percent of Net Assets
Financial	80.95%
Energy	7.89%
Utilities	6.88%
Money Market Funds	2.67%
Government	1.54%
Consumer, Non-cyclical	0.74%
Exchange-Traded Funds	0.15%
Communications	0.12%
Other Assets and Liabilities	(0.94)%
Total Net Assets	100.00%

FV828SARS-0

C000085834

Shareholder Report [Line Items]

Fund Name

Diversified Real Asset Fund

Class Name

Class A

Trading Symbol

PRDAX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Diversified Real Asset Fund (the "Fund") for the period of September 1, 2025 to February 28, 2026.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

You can find additional information about the Fund at www.PrincipalAM.com/prospectuses or you can request information by contacting us at 1-800-222-5852 or emailing prospectus@principalfunds.com.

Additional Information Phone Number

1-800-222-5852

Additional Information Email

Additional Information Website

Expenses [Text Block]

What were the Fund costs for the last six months?

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
Class A	$65	1.20%^{Footnote Reference*}

Footnote	Description
Footnote^*	Computed on an annualized basis.

Expenses Paid, Amount

$ 65

Expense Ratio, Percent

1.20%

^[13]

AssetsNet

$ 2,661,658,000

Holdings Count | Holding

511

InvestmentCompanyPortfolioTurnover

82.90%

Additional Fund Statistics [Text Block]

Fund Statistics

Net Assets (amount in thousands)$2,661,658
Total Number of Portfolio Holdings511
Portfolio Turnover Rate (annualized)82.9%

Holdings [Text Block]

Portfolio Allocation

Table Summary
Asset Weighting	Percent of Net Assets
Common Stocks	78.71%
Investment Companies	11.24%
U.S. Government & Government Agency Obligations	10.69%
Senior Floating Rate Interests	0.02%
Preferred Stocks	0.01%
Other Assets and Liabilities^{Footnote Reference*}	(0.67)%
Total Net Assets	100.00%

Footnote	Description
Footnote^*	Includes derivatives

Sector Allocation

Table Summary
Sector	Percent of Net Assets
Financial	20.87%
Utilities	17.09%
Energy	14.90%
Basic Materials	11.38%
Government	10.69%
Industrial	10.43%
Exchange-Traded Funds	7.35%
Money Market Funds	3.69%
Consumer, Non-cyclical	3.45%
Consumer, Cyclical	0.41%
Communications	0.20%
Closed-End Funds	0.20%
Technology	0.01%
Other Assets and Liabilities^{Footnote Reference*}	(0.67)%
Total Net Assets	100.00%

Footnote	Description
Footnote^*	Includes derivatives

FV832SARA-0

C000085836

Shareholder Report [Line Items]

Fund Name

Diversified Real Asset Fund

Class Name

Institutional

Trading Symbol

PDRDX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Diversified Real Asset Fund (the "Fund") for the period of September 1, 2025 to February 28, 2026.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

You can find additional information about the Fund at www.PrincipalAM.com/prospectuses or you can request information by contacting us at 1-800-222-5852 or emailing prospectus@principalfunds.com.

Additional Information Phone Number

1-800-222-5852

Additional Information Email

Additional Information Website

Expenses [Text Block]

What were the Fund costs for the last six months?

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
Institutional	$45	0.83%^{Footnote Reference*}

Footnote	Description
Footnote^*	Computed on an annualized basis.

Expenses Paid, Amount

$ 45

Expense Ratio, Percent

0.83%

^[14]

AssetsNet

$ 2,661,658,000

Holdings Count | Holding

511

InvestmentCompanyPortfolioTurnover

82.90%

Additional Fund Statistics [Text Block]

Fund Statistics

Net Assets (amount in thousands)$2,661,658
Total Number of Portfolio Holdings511
Portfolio Turnover Rate (annualized)82.9%

Holdings [Text Block]

Portfolio Allocation

Table Summary
Asset Weighting	Percent of Net Assets
Common Stocks	78.71%
Investment Companies	11.24%
U.S. Government & Government Agency Obligations	10.69%
Senior Floating Rate Interests	0.02%
Preferred Stocks	0.01%
Other Assets and Liabilities^{Footnote Reference*}	(0.67)%
Total Net Assets	100.00%

Footnote	Description
Footnote^*	Includes derivatives

Sector Allocation

Table Summary
Sector	Percent of Net Assets
Financial	20.87%
Utilities	17.09%
Energy	14.90%
Basic Materials	11.38%
Government	10.69%
Industrial	10.43%
Exchange-Traded Funds	7.35%
Money Market Funds	3.69%
Consumer, Non-cyclical	3.45%
Consumer, Cyclical	0.41%
Communications	0.20%
Closed-End Funds	0.20%
Technology	0.01%
Other Assets and Liabilities^{Footnote Reference*}	(0.67)%
Total Net Assets	100.00%

Footnote	Description
Footnote^*	Includes derivatives

FV832SARI-0

C000167692

Shareholder Report [Line Items]

Fund Name

Diversified Real Asset Fund

Class Name

R-3

Trading Symbol

PGDRX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Diversified Real Asset Fund (the "Fund") for the period of September 1, 2025 to February 28, 2026.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

You can find additional information about the Fund at www.PrincipalAM.com/prospectuses or you can request information by contacting us at 1-800-222-5852 or emailing prospectus@principalfunds.com.

Additional Information Phone Number

1-800-222-5852

Additional Information Email

Additional Information Website

Expenses [Text Block]

What were the Fund costs for the last six months?

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
R-3	$74	1.36%^{Footnote Reference*}

Footnote	Description
Footnote^*	Computed on an annualized basis.

Expenses Paid, Amount

$ 74

Expense Ratio, Percent

1.36%

^[15]

AssetsNet

$ 2,661,658,000

Holdings Count | Holding

511

InvestmentCompanyPortfolioTurnover

82.90%

Additional Fund Statistics [Text Block]

Fund Statistics

Net Assets (amount in thousands)$2,661,658
Total Number of Portfolio Holdings511
Portfolio Turnover Rate (annualized)82.9%

Holdings [Text Block]

Portfolio Allocation

Table Summary
Asset Weighting	Percent of Net Assets
Common Stocks	78.71%
Investment Companies	11.24%
U.S. Government & Government Agency Obligations	10.69%
Senior Floating Rate Interests	0.02%
Preferred Stocks	0.01%
Other Assets and Liabilities^{Footnote Reference*}	(0.67)%
Total Net Assets	100.00%

Footnote	Description
Footnote^*	Includes derivatives

Sector Allocation

Table Summary
Sector	Percent of Net Assets
Financial	20.87%
Utilities	17.09%
Energy	14.90%
Basic Materials	11.38%
Government	10.69%
Industrial	10.43%
Exchange-Traded Funds	7.35%
Money Market Funds	3.69%
Consumer, Non-cyclical	3.45%
Consumer, Cyclical	0.41%
Communications	0.20%
Closed-End Funds	0.20%
Technology	0.01%
Other Assets and Liabilities^{Footnote Reference*}	(0.67)%
Total Net Assets	100.00%

Footnote	Description
Footnote^*	Includes derivatives

FV832SARR3-0

C000150253

Shareholder Report [Line Items]

Fund Name

Diversified Real Asset Fund

Class Name

R-6

Trading Symbol

PDARX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Diversified Real Asset Fund (the "Fund") for the period of September 1, 2025 to February 28, 2026.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

You can find additional information about the Fund at www.PrincipalAM.com/prospectuses or you can request information by contacting us at 1-800-222-5852 or emailing prospectus@principalfunds.com.

Additional Information Phone Number

1-800-222-5852

Additional Information Email

Additional Information Website

Expenses [Text Block]

What were the Fund costs for the last six months?

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
R-6	$43	0.79%^{Footnote Reference*}

Footnote	Description
Footnote^*	Computed on an annualized basis.

Expenses Paid, Amount

$ 43

Expense Ratio, Percent

0.79%

^[16]

AssetsNet

$ 2,661,658,000

Holdings Count | Holding

511

InvestmentCompanyPortfolioTurnover

82.90%

Additional Fund Statistics [Text Block]

Fund Statistics

Net Assets (amount in thousands)$2,661,658
Total Number of Portfolio Holdings511
Portfolio Turnover Rate (annualized)82.9%

Holdings [Text Block]

Portfolio Allocation

Table Summary
Asset Weighting	Percent of Net Assets
Common Stocks	78.71%
Investment Companies	11.24%
U.S. Government & Government Agency Obligations	10.69%
Senior Floating Rate Interests	0.02%
Preferred Stocks	0.01%
Other Assets and Liabilities^{Footnote Reference*}	(0.67)%
Total Net Assets	100.00%

Footnote	Description
Footnote^*	Includes derivatives

Sector Allocation

Table Summary
Sector	Percent of Net Assets
Financial	20.87%
Utilities	17.09%
Energy	14.90%
Basic Materials	11.38%
Government	10.69%
Industrial	10.43%
Exchange-Traded Funds	7.35%
Money Market Funds	3.69%
Consumer, Non-cyclical	3.45%
Consumer, Cyclical	0.41%
Communications	0.20%
Closed-End Funds	0.20%
Technology	0.01%
Other Assets and Liabilities^{Footnote Reference*}	(0.67)%
Total Net Assets	100.00%

Footnote	Description
Footnote^*	Includes derivatives

FV832SARR6-0

C000261435

Shareholder Report [Line Items]

Fund Name

Global Macro Fund

Class Name

R-6

Trading Symbol

PAFIX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Global Macro Fund (the "Fund") for the period of November 14, 2025 to February 28, 2026.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

You can find additional information about the Fund at www.PrincipalAM.com/prospectuses or you can request information by contacting us at 1-800-222-5852 or emailing prospectus@principalfunds.com.

Additional Information Phone Number

1-800-222-5852

Additional Information Email

Additional Information Website

Expenses [Text Block]

What were the Fund costs for the last six months?

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
R-6	$24^{Footnote Reference*}	0.79%^{Footnote Reference†}

Footnote	Description
Footnote^*	Expenses are for the period from November 14, 2025, date operations commenced, through February 28, 2026. Expenses for the full reporting period would be higher.
Footnote^†	Computed on an annualized basis.

Expenses Paid, Amount

$ 24

^[17]

Expense Ratio, Percent

0.79%

^[18]

Expenses Short Period Footnote [Text Block]

Expenses are for the period from November 14, 2025, date operations commenced, through February 28, 2026. Expenses for the full reporting period would be higher.

AssetsNet

$ 160,215,000

Holdings Count | Holding

136

InvestmentCompanyPortfolioTurnover

0.00%

Additional Fund Statistics [Text Block]

Fund Statistics

Net Assets (amount in thousands)$160,215
Total Number of Portfolio Holdings136
Portfolio Turnover Rate (annualized)0.0%

Holdings [Text Block]

Portfolio Allocation

Table Summary
Asset Weighting	Percent of Net Assets
Investment Companies	84.68%
Other Assets and Liabilities^{Footnote Reference*}	15.32%
Total Net Assets	100.00%

Footnote	Description
Footnote^*	Includes derivatives

Geographic Allocation

Table Summary
Top Locations	Percent of Net Assets
Other Locations^{Footnote Reference*}	84.68%
Other Assets and Liabilities^{Footnote Reference†}	15.32%
Total Net Assets	100.00%

Footnote	Description
Footnote^*	Includes locations other than the top twenty and/or Investment Companies
Footnote^†	Includes derivatives

FV960SARR6-0

C000104712

Shareholder Report [Line Items]

Fund Name

Global Multi-Strategy Fund

Class Name

Class A

Trading Symbol

PMSAX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Global Multi-Strategy Fund (the "Fund") for the period of September 1, 2025 to February 28, 2026.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

You can find additional information about the Fund at www.PrincipalAM.com/prospectuses or you can request information by contacting us at 1-800-222-5852 or emailing prospectus@principalfunds.com.

Additional Information Phone Number

1-800-222-5852

Additional Information Email

Additional Information Website

Expenses [Text Block]

What were the Fund costs for the last six months?

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
Class A	$89	1.73%^{Footnote Reference*}

Footnote	Description
Footnote^*	Computed on an annualized basis.

Expenses Paid, Amount

$ 89

Expense Ratio, Percent

1.73%

^[19]

AssetsNet

$ 527,262,000

Holdings Count | Holding

2,135

InvestmentCompanyPortfolioTurnover

180.80%

Additional Fund Statistics [Text Block]

Fund Statistics

Net Assets (amount in thousands)$527,262
Total Number of Portfolio Holdings2,135
Portfolio Turnover Rate (annualized)180.8%

Holdings [Text Block]

Portfolio Allocation

Table Summary
Asset Weighting	Percent of Net Assets
Common Stocks	37.19%
Bonds	29.03%
Investment Companies	25.24%
U.S. Government & Government Agency Obligations	2.02%
Senior Floating Rate Interests	0.56%
Convertible Bonds	0.46%
Preferred Stocks	0.10%
Convertible Preferred Stocks	0.02%
Purchased Options	0.02%
Other Assets and Liabilities^{Footnote Reference*}^{Footnote Reference†}	5.36%
Total Net Assets	100.00%

Footnote	Description
Footnote^*	Includes derivatives
Footnote^†	Includes short sales

Geographic Allocation

Table Summary
Top Locations	Percent of Net Assets
United States	36.37%
Japan	6.74%
Canada	2.57%
Cayman Islands	1.84%
United Kingdom	1.65%
Netherlands	1.59%
Mexico	1.21%
Ireland	0.93%
South Africa	0.91%
Romania	0.84%
Israel	0.70%
Switzerland	0.64%
Brazil	0.63%
Germany	0.57%
Supranational	0.57%
Egypt	0.52%
Colombia	0.52%
Australia	0.50%
Peru	0.49%
Hong Kong	0.48%
Other Locations^{Footnote Reference*}	34.37%
Other Assets and Liabilities^{Footnote Reference†}^{Footnote Reference‡}	5.36%
Total Net Assets	100.00%

Footnote	Description
Footnote^*	Includes locations other than the top twenty and/or Investment Companies
Footnote^†	Includes derivatives
Footnote^‡	Includes short sales

FV838SARA-0

C000104714

Shareholder Report [Line Items]

Fund Name

Global Multi-Strategy Fund

Class Name

Institutional

Trading Symbol

PSMIX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Global Multi-Strategy Fund (the "Fund") for the period of September 1, 2025 to February 28, 2026.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

You can find additional information about the Fund at www.PrincipalAM.com/prospectuses or you can request information by contacting us at 1-800-222-5852 or emailing prospectus@principalfunds.com.

Additional Information Phone Number

1-800-222-5852

Additional Information Email

Additional Information Website

Expenses [Text Block]

What were the Fund costs for the last six months?

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
Institutional	$73	1.41%^{Footnote Reference*}

Footnote	Description
Footnote^*	Computed on an annualized basis.

Expenses Paid, Amount

$ 73

Expense Ratio, Percent

1.41%

^[20]

AssetsNet

$ 527,262,000

Holdings Count | Holding

2,135

InvestmentCompanyPortfolioTurnover

180.80%

Additional Fund Statistics [Text Block]

Fund Statistics

Net Assets (amount in thousands)$527,262
Total Number of Portfolio Holdings2,135
Portfolio Turnover Rate (annualized)180.8%

Holdings [Text Block]

Portfolio Allocation

Table Summary
Asset Weighting	Percent of Net Assets
Common Stocks	37.19%
Bonds	29.03%
Investment Companies	25.24%
U.S. Government & Government Agency Obligations	2.02%
Senior Floating Rate Interests	0.56%
Convertible Bonds	0.46%
Preferred Stocks	0.10%
Convertible Preferred Stocks	0.02%
Purchased Options	0.02%
Other Assets and Liabilities^{Footnote Reference*}^{Footnote Reference†}	5.36%
Total Net Assets	100.00%

Footnote	Description
Footnote^*	Includes derivatives
Footnote^†	Includes short sales

Geographic Allocation

Table Summary
Top Locations	Percent of Net Assets
United States	36.37%
Japan	6.74%
Canada	2.57%
Cayman Islands	1.84%
United Kingdom	1.65%
Netherlands	1.59%
Mexico	1.21%
Ireland	0.93%
South Africa	0.91%
Romania	0.84%
Israel	0.70%
Switzerland	0.64%
Brazil	0.63%
Germany	0.57%
Supranational	0.57%
Egypt	0.52%
Colombia	0.52%
Australia	0.50%
Peru	0.49%
Hong Kong	0.48%
Other Locations^{Footnote Reference*}	34.37%
Other Assets and Liabilities^{Footnote Reference†}^{Footnote Reference‡}	5.36%
Total Net Assets	100.00%

Footnote	Description
Footnote^*	Includes locations other than the top twenty and/or Investment Companies
Footnote^†	Includes derivatives
Footnote^‡	Includes short sales

FV838SARI-0

C000190071

Shareholder Report [Line Items]

Fund Name

Global Multi-Strategy Fund

Class Name

R-6

Trading Symbol

PGLSX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Global Multi-Strategy Fund (the "Fund") for the period of September 1, 2025 to February 28, 2026.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

You can find additional information about the Fund at www.PrincipalAM.com/prospectuses or you can request information by contacting us at 1-800-222-5852 or emailing prospectus@principalfunds.com.

Additional Information Phone Number

1-800-222-5852

Additional Information Email

Additional Information Website

Expenses [Text Block]

What were the Fund costs for the last six months?

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
R-6	$66	1.28%^{Footnote Reference*}

Footnote	Description
Footnote^*	Computed on an annualized basis.

Expenses Paid, Amount

$ 66

Expense Ratio, Percent

1.28%

^[21]

AssetsNet

$ 527,262,000

Holdings Count | Holding

2,135

InvestmentCompanyPortfolioTurnover

180.80%

Additional Fund Statistics [Text Block]

Fund Statistics

Net Assets (amount in thousands)$527,262
Total Number of Portfolio Holdings2,135
Portfolio Turnover Rate (annualized)180.8%

Holdings [Text Block]

Portfolio Allocation

Table Summary
Asset Weighting	Percent of Net Assets
Common Stocks	37.19%
Bonds	29.03%
Investment Companies	25.24%
U.S. Government & Government Agency Obligations	2.02%
Senior Floating Rate Interests	0.56%
Convertible Bonds	0.46%
Preferred Stocks	0.10%
Convertible Preferred Stocks	0.02%
Purchased Options	0.02%
Other Assets and Liabilities^{Footnote Reference*}^{Footnote Reference†}	5.36%
Total Net Assets	100.00%

Footnote	Description
Footnote^*	Includes derivatives
Footnote^†	Includes short sales

Geographic Allocation

Table Summary
Top Locations	Percent of Net Assets
United States	36.37%
Japan	6.74%
Canada	2.57%
Cayman Islands	1.84%
United Kingdom	1.65%
Netherlands	1.59%
Mexico	1.21%
Ireland	0.93%
South Africa	0.91%
Romania	0.84%
Israel	0.70%
Switzerland	0.64%
Brazil	0.63%
Germany	0.57%
Supranational	0.57%
Egypt	0.52%
Colombia	0.52%
Australia	0.50%
Peru	0.49%
Hong Kong	0.48%
Other Locations^{Footnote Reference*}	34.37%
Other Assets and Liabilities^{Footnote Reference†}^{Footnote Reference‡}	5.36%
Total Net Assets	100.00%

Footnote	Description
Footnote^*	Includes locations other than the top twenty and/or Investment Companies
Footnote^†	Includes derivatives
Footnote^‡	Includes short sales

FV838SARR6-0

C000237990

Shareholder Report [Line Items]

Fund Name

Global Listed Infrastructure Fund

Class Name

Institutional

Trading Symbol

PGSLX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Global Listed Infrastructure Fund (the "Fund") for the period of September 1, 2025 to February 28, 2026.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

You can find additional information about the Fund at www.PrincipalAM.com/prospectuses or you can request information by contacting us at 1-800-222-5852 or emailing prospectus@principalfunds.com.

Additional Information Phone Number

1-800-222-5852

Additional Information Email

Additional Information Website

Expenses [Text Block]

What were the Fund costs for the last six months?

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
Institutional	$35	0.65%^{Footnote Reference*}

Footnote	Description
Footnote^*	Computed on an annualized basis.

Expenses Paid, Amount

$ 35

Expense Ratio, Percent

0.65%

^[22]

AssetsNet

$ 126,043,000

Holdings Count | Holding

InvestmentCompanyPortfolioTurnover

35.60%

Additional Fund Statistics [Text Block]

Fund Statistics

Net Assets (amount in thousands)$126,043
Total Number of Portfolio Holdings41
Portfolio Turnover Rate (annualized)35.6%

Holdings [Text Block]

Portfolio Allocation

Table Summary
Asset Weighting	Percent of Net Assets
Common Stocks	98.42%
Investment Companies	2.18%
Other Assets and Liabilities	(0.60)%
Total Net Assets	100.00%

Geographic Allocation

Table Summary
Top Locations	Percent of Net Assets
United States	55.18%
Canada	9.72%
United Kingdom	6.92%
Brazil	5.09%
Australia	4.96%
China	3.98%
Spain	2.98%
Belgium	2.70%
France	1.93%
Hong Kong	1.68%
India	1.17%
Indonesia	1.07%
Italy	1.04%
Other Locations^{Footnote Reference*}	2.18%
Other Assets and Liabilities	(0.60)%
Total Net Assets	100.00%

Footnote	Description
Footnote^*	Includes locations other than the top twenty and/or Investment Companies

FV944SARI-0

C000082035

Shareholder Report [Line Items]

Fund Name

International Equity Index Fund

Class Name

Institutional

Trading Symbol

PIDIX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about International Equity Index Fund (the "Fund") for the period of September 1, 2025 to February 28, 2026.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

You can find additional information about the Fund at www.PrincipalAM.com/prospectuses or you can request information by contacting us at 1-800-222-5852 or emailing prospectus@principalfunds.com.

Additional Information Phone Number

1-800-222-5852

Additional Information Email

Additional Information Website

Expenses [Text Block]

What were the Fund costs for the last six months?

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
Institutional	$15	0.28%^{Footnote Reference*}

Footnote	Description
Footnote^*	Computed on an annualized basis.

Expenses Paid, Amount

$ 15

Expense Ratio, Percent

0.28%

^[23]

AssetsNet

$ 1,407,425,000

Holdings Count | Holding

695

InvestmentCompanyPortfolioTurnover

89.10%

Additional Fund Statistics [Text Block]

Fund Statistics

Net Assets (amount in thousands)$1,407,425
Total Number of Portfolio Holdings695
Portfolio Turnover Rate (annualized)89.1%

Holdings [Text Block]

Portfolio Allocation

Table Summary
Asset Weighting	Percent of Net Assets
Common Stocks	97.44%
Investment Companies	2.18%
Preferred Stocks	0.28%
Other Assets and Liabilities^{Footnote Reference*}	0.10%
Total Net Assets	100.00%

Footnote	Description
Footnote^*	Includes derivatives

Geographic Allocation

Table Summary
Top Locations	Percent of Net Assets
Japan	22.70%
United Kingdom	13.87%
Switzerland	9.86%
France	9.75%
Germany	8.92%
Australia	6.46%
Netherlands	5.34%
Sweden	3.66%
Spain	3.53%
Italy	3.00%
Hong Kong	2.07%
Singapore	1.54%
Denmark	1.52%
Finland	1.13%
Israel	1.01%
Belgium	0.87%
Ireland	0.69%
Norway	0.62%
Austria	0.30%
Luxembourg	0.23%
Other Locations^{Footnote Reference*}	2.83%
Other Assets and Liabilities^{Footnote Reference†}	0.10%
Total Net Assets	100.00%

Footnote	Description
Footnote^*	Includes locations other than the top twenty and/or Investment Companies
Footnote^†	Includes derivatives

FV845SARI-0

C000082032

Shareholder Report [Line Items]

Fund Name

International Equity Index Fund

Class Name

R-3

Trading Symbol

PIIOX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about International Equity Index Fund (the "Fund") for the period of September 1, 2025 to February 28, 2026.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

You can find additional information about the Fund at www.PrincipalAM.com/prospectuses or you can request information by contacting us at 1-800-222-5852 or emailing prospectus@principalfunds.com.

Additional Information Phone Number

1-800-222-5852

Additional Information Email

Additional Information Website

Expenses [Text Block]

What were the Fund costs for the last six months?

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
R-3	$45	0.84%^{Footnote Reference*}

Footnote	Description
Footnote^*	Computed on an annualized basis.

Expenses Paid, Amount

$ 45

Expense Ratio, Percent

0.84%

^[24]

AssetsNet

$ 1,407,425,000

Holdings Count | Holding

695

InvestmentCompanyPortfolioTurnover

89.10%

Additional Fund Statistics [Text Block]

Fund Statistics

Net Assets (amount in thousands)$1,407,425
Total Number of Portfolio Holdings695
Portfolio Turnover Rate (annualized)89.1%

Holdings [Text Block]

Portfolio Allocation

Table Summary
Asset Weighting	Percent of Net Assets
Common Stocks	97.44%
Investment Companies	2.18%
Preferred Stocks	0.28%
Other Assets and Liabilities^{Footnote Reference*}	0.10%
Total Net Assets	100.00%

Footnote	Description
Footnote^*	Includes derivatives

Geographic Allocation

Table Summary
Top Locations	Percent of Net Assets
Japan	22.70%
United Kingdom	13.87%
Switzerland	9.86%
France	9.75%
Germany	8.92%
Australia	6.46%
Netherlands	5.34%
Sweden	3.66%
Spain	3.53%
Italy	3.00%
Hong Kong	2.07%
Singapore	1.54%
Denmark	1.52%
Finland	1.13%
Israel	1.01%
Belgium	0.87%
Ireland	0.69%
Norway	0.62%
Austria	0.30%
Luxembourg	0.23%
Other Locations^{Footnote Reference*}	2.83%
Other Assets and Liabilities^{Footnote Reference†}	0.10%
Total Net Assets	100.00%

Footnote	Description
Footnote^*	Includes locations other than the top twenty and/or Investment Companies
Footnote^†	Includes derivatives

FV845SARR3-0

C000082034

Shareholder Report [Line Items]

Fund Name

International Equity Index Fund

Class Name

R-5

Trading Symbol

PIIQX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about International Equity Index Fund (the "Fund") for the period of September 1, 2025 to February 28, 2026.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

You can find additional information about the Fund at www.PrincipalAM.com/prospectuses or you can request information by contacting us at 1-800-222-5852 or emailing prospectus@principalfunds.com.

Additional Information Phone Number

1-800-222-5852

Additional Information Email

Additional Information Website

Expenses [Text Block]

What were the Fund costs for the last six months?

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
R-5	$29	0.53%^{Footnote Reference*}

Footnote	Description
Footnote^*	Computed on an annualized basis.

Expenses Paid, Amount

$ 29

Expense Ratio, Percent

0.53%

^[25]

AssetsNet

$ 1,407,425,000

Holdings Count | Holding

695

InvestmentCompanyPortfolioTurnover

89.10%

Additional Fund Statistics [Text Block]

Fund Statistics

Net Assets (amount in thousands)$1,407,425
Total Number of Portfolio Holdings695
Portfolio Turnover Rate (annualized)89.1%

Holdings [Text Block]

Portfolio Allocation

Table Summary
Asset Weighting	Percent of Net Assets
Common Stocks	97.44%
Investment Companies	2.18%
Preferred Stocks	0.28%
Other Assets and Liabilities^{Footnote Reference*}	0.10%
Total Net Assets	100.00%

Footnote	Description
Footnote^*	Includes derivatives

Geographic Allocation

Table Summary
Top Locations	Percent of Net Assets
Japan	22.70%
United Kingdom	13.87%
Switzerland	9.86%
France	9.75%
Germany	8.92%
Australia	6.46%
Netherlands	5.34%
Sweden	3.66%
Spain	3.53%
Italy	3.00%
Hong Kong	2.07%
Singapore	1.54%
Denmark	1.52%
Finland	1.13%
Israel	1.01%
Belgium	0.87%
Ireland	0.69%
Norway	0.62%
Austria	0.30%
Luxembourg	0.23%
Other Locations^{Footnote Reference*}	2.83%
Other Assets and Liabilities^{Footnote Reference†}	0.10%
Total Net Assets	100.00%

Footnote	Description
Footnote^*	Includes locations other than the top twenty and/or Investment Companies
Footnote^†	Includes derivatives

FV845SARR5-0

C000176329

Shareholder Report [Line Items]

Fund Name

International Equity Index Fund

Class Name

R-6

Trading Symbol

PFIEX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about International Equity Index Fund (the "Fund") for the period of September 1, 2025 to February 28, 2026.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

You can find additional information about the Fund at www.PrincipalAM.com/prospectuses or you can request information by contacting us at 1-800-222-5852 or emailing prospectus@principalfunds.com.

Additional Information Phone Number

1-800-222-5852

Additional Information Email

Additional Information Website

Expenses [Text Block]

What were the Fund costs for the last six months?

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
R-6	$14	0.26%^{Footnote Reference*}

Footnote	Description
Footnote^*	Computed on an annualized basis.

Expenses Paid, Amount

$ 14

Expense Ratio, Percent

0.26%

^[26]

AssetsNet

$ 1,407,425,000

Holdings Count | Holding

695

InvestmentCompanyPortfolioTurnover

89.10%

Additional Fund Statistics [Text Block]

Fund Statistics

Net Assets (amount in thousands)$1,407,425
Total Number of Portfolio Holdings695
Portfolio Turnover Rate (annualized)89.1%

Holdings [Text Block]

Portfolio Allocation

Table Summary
Asset Weighting	Percent of Net Assets
Common Stocks	97.44%
Investment Companies	2.18%
Preferred Stocks	0.28%
Other Assets and Liabilities^{Footnote Reference*}	0.10%
Total Net Assets	100.00%

Footnote	Description
Footnote^*	Includes derivatives

Geographic Allocation

Table Summary
Top Locations	Percent of Net Assets
Japan	22.70%
United Kingdom	13.87%
Switzerland	9.86%
France	9.75%
Germany	8.92%
Australia	6.46%
Netherlands	5.34%
Sweden	3.66%
Spain	3.53%
Italy	3.00%
Hong Kong	2.07%
Singapore	1.54%
Denmark	1.52%
Finland	1.13%
Israel	1.01%
Belgium	0.87%
Ireland	0.69%
Norway	0.62%
Austria	0.30%
Luxembourg	0.23%
Other Locations^{Footnote Reference*}	2.83%
Other Assets and Liabilities^{Footnote Reference†}	0.10%
Total Net Assets	100.00%

Footnote	Description
Footnote^*	Includes locations other than the top twenty and/or Investment Companies
Footnote^†	Includes derivatives

FV845SARR6-0

C000150254

Shareholder Report [Line Items]

Fund Name

International Small Company Fund

Class Name

Institutional

Trading Symbol

PISMX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about International Small Company Fund (the "Fund") for the period of September 1, 2025 to February 28, 2026.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

You can find additional information about the Fund at www.PrincipalAM.com/prospectuses or you can request information by contacting us at 1-800-222-5852 or emailing prospectus@principalfunds.com.

Additional Information Phone Number

1-800-222-5852

Additional Information Email

Additional Information Website

Expenses [Text Block]

What were the Fund costs for the last six months?

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
Institutional	$58	1.10%^{Footnote Reference*}

Footnote	Description
Footnote^*	Computed on an annualized basis.

Expenses Paid, Amount

$ 58

Expense Ratio, Percent

1.10%

^[27]

AssetsNet

$ 459,937,000

Holdings Count | Holding

108

InvestmentCompanyPortfolioTurnover

56.70%

Additional Fund Statistics [Text Block]

Fund Statistics

Net Assets (amount in thousands)$459,937
Total Number of Portfolio Holdings108
Portfolio Turnover Rate (annualized)56.7%

Holdings [Text Block]

Portfolio Allocation

Table Summary
Asset Weighting	Percent of Net Assets
Common Stocks	98.45%
Investment Companies	2.64%
Other Assets and Liabilities	(1.09)%
Total Net Assets	100.00%

Geographic Allocation

Table Summary
Top Locations	Percent of Net Assets
Japan	35.71%
Canada	16.37%
United Kingdom	11.83%
Australia	5.29%
Germany	5.08%
France	4.03%
Netherlands	2.95%
Denmark	2.90%
Israel	2.77%
Italy	2.20%
Spain	1.95%
Sweden	1.62%
Portugal	1.07%
Switzerland	1.06%
Singapore	0.97%
Austria	0.97%
Macao	0.90%
Finland	0.78%
Other Locations^{Footnote Reference*}	2.64%
Other Assets and Liabilities	(1.09)%
Total Net Assets	100.00%

Footnote	Description
Footnote^*	Includes locations other than the top twenty and/or Investment Companies

FV847SARI-0

C000176332

Shareholder Report [Line Items]

Fund Name

International Small Company Fund

Class Name

R-6

Trading Symbol

PFISX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about International Small Company Fund (the "Fund") for the period of September 1, 2025 to February 28, 2026.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

You can find additional information about the Fund at www.PrincipalAM.com/prospectuses or you can request information by contacting us at 1-800-222-5852 or emailing prospectus@principalfunds.com.

Additional Information Phone Number

1-800-222-5852

Additional Information Email

Additional Information Website

Expenses [Text Block]

What were the Fund costs for the last six months?

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
R-6	$56	1.06%^{Footnote Reference*}

Footnote	Description
Footnote^*	Computed on an annualized basis.

Expenses Paid, Amount

$ 56

Expense Ratio, Percent

1.06%

^[28]

AssetsNet

$ 459,937,000

Holdings Count | Holding

108

InvestmentCompanyPortfolioTurnover

56.70%

Additional Fund Statistics [Text Block]

Fund Statistics

Net Assets (amount in thousands)$459,937
Total Number of Portfolio Holdings108
Portfolio Turnover Rate (annualized)56.7%

Holdings [Text Block]

Portfolio Allocation

Table Summary
Asset Weighting	Percent of Net Assets
Common Stocks	98.45%
Investment Companies	2.64%
Other Assets and Liabilities	(1.09)%
Total Net Assets	100.00%

Geographic Allocation

Table Summary
Top Locations	Percent of Net Assets
Japan	35.71%
Canada	16.37%
United Kingdom	11.83%
Australia	5.29%
Germany	5.08%
France	4.03%
Netherlands	2.95%
Denmark	2.90%
Israel	2.77%
Italy	2.20%
Spain	1.95%
Sweden	1.62%
Portugal	1.07%
Switzerland	1.06%
Singapore	0.97%
Austria	0.97%
Macao	0.90%
Finland	0.78%
Other Locations^{Footnote Reference*}	2.64%
Other Assets and Liabilities	(1.09)%
Total Net Assets	100.00%

Footnote	Description
Footnote^*	Includes locations other than the top twenty and/or Investment Companies

FV847SARR6-0

C000115414

Shareholder Report [Line Items]

Fund Name

Opportunistic Municipal Fund

Class Name

Class A

Trading Symbol

PMOAX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Opportunistic Municipal Fund (the "Fund") for the period of September 1, 2025 to February 28, 2026.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

You can find additional information about the Fund at www.PrincipalAM.com/prospectuses or you can request information by contacting us at 1-800-222-5852 or emailing prospectus@principalfunds.com.

Additional Information Phone Number

1-800-222-5852

Additional Information Email

Additional Information Website

Expenses [Text Block]

What were the Fund costs for the last six months?

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
Class A	$55	1.08%^{Footnote Reference*}

Footnote	Description
Footnote^*	Computed on an annualized basis.

Expenses Paid, Amount

$ 55

Expense Ratio, Percent

1.08%

^[29]

AssetsNet

$ 186,003,000

Holdings Count | Holding

172

InvestmentCompanyPortfolioTurnover

37.30%

Additional Fund Statistics [Text Block]

Fund Statistics

Net Assets (amount in thousands)$186,003
Total Number of Portfolio Holdings172
Portfolio Turnover Rate (annualized)37.3%

Holdings [Text Block]

Portfolio Allocation

Table Summary
Asset Weighting	Percent of Net Assets
Municipal Bonds	106.90%
Investment Companies	0.83%
Common Stocks	0.03%
Other Assets and Liabilities^{Footnote Reference*}	(7.76)%
Total Net Assets	100.00%

Footnote	Description
Footnote^*	Includes inverse floating rate obligations

State Allocation

Table Summary
Top States/Territories	Percent of Net Assets
New York	18.04%
Florida	12.78%
California	10.32%
Alabama	6.72%
Texas	6.67%
Illinois	5.89%
Pennsylvania	4.96%
Wisconsin	4.87%
Utah	4.64%
Georgia	4.42%
Ohio	3.45%
Louisiana	2.78%
Puerto Rico	2.43%
Arkansas	2.25%
Arizona	1.91%
Nevada	1.12%
New Hampshire	1.10%
Virginia	1.02%
Tennessee	0.97%
Connecticut	0.92%
Other States^{Footnote Reference*}	10.50%
Other Assets and Liabilities^{Footnote Reference†}	(7.76)%
Total Net Assets	100.00%

Footnote	Description
Footnote^*	Includes states other than the top twenty and/or Investment Companies
Footnote^†	Includes inverse floating rate obligations

FV885SARA-0

C000153266

Shareholder Report [Line Items]

Fund Name

Opportunistic Municipal Fund

Class Name

Institutional

Trading Symbol

POMFX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Opportunistic Municipal Fund (the "Fund") for the period of September 1, 2025 to February 28, 2026.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

You can find additional information about the Fund at www.PrincipalAM.com/prospectuses or you can request information by contacting us at 1-800-222-5852 or emailing prospectus@principalfunds.com.

Additional Information Phone Number

1-800-222-5852

Additional Information Email

Additional Information Website

Expenses [Text Block]

What were the Fund costs for the last six months?

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
Institutional	$41	0.80%^{Footnote Reference*}

Footnote	Description
Footnote^*	Computed on an annualized basis.

Expenses Paid, Amount

$ 41

Expense Ratio, Percent

0.80%

^[30]

AssetsNet

$ 186,003,000

Holdings Count | Holding

172

InvestmentCompanyPortfolioTurnover

37.30%

Additional Fund Statistics [Text Block]

Fund Statistics

Net Assets (amount in thousands)$186,003
Total Number of Portfolio Holdings172
Portfolio Turnover Rate (annualized)37.3%

Holdings [Text Block]

Portfolio Allocation

Table Summary
Asset Weighting	Percent of Net Assets
Municipal Bonds	106.90%
Investment Companies	0.83%
Common Stocks	0.03%
Other Assets and Liabilities^{Footnote Reference*}	(7.76)%
Total Net Assets	100.00%

Footnote	Description
Footnote^*	Includes inverse floating rate obligations

State Allocation

Table Summary
Top States/Territories	Percent of Net Assets
New York	18.04%
Florida	12.78%
California	10.32%
Alabama	6.72%
Texas	6.67%
Illinois	5.89%
Pennsylvania	4.96%
Wisconsin	4.87%
Utah	4.64%
Georgia	4.42%
Ohio	3.45%
Louisiana	2.78%
Puerto Rico	2.43%
Arkansas	2.25%
Arizona	1.91%
Nevada	1.12%
New Hampshire	1.10%
Virginia	1.02%
Tennessee	0.97%
Connecticut	0.92%
Other States^{Footnote Reference*}	10.50%
Other Assets and Liabilities^{Footnote Reference†}	(7.76)%
Total Net Assets	100.00%

Footnote	Description
Footnote^*	Includes states other than the top twenty and/or Investment Companies
Footnote^†	Includes inverse floating rate obligations

FV885SARI-0

C000101659

Shareholder Report [Line Items]

Fund Name

Small-MidCap Dividend Income Fund

Class Name

Class A

Trading Symbol

PMDAX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Small-MidCap Dividend Income Fund (the "Fund") for the period of September 1, 2025 to February 28, 2026.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

You can find additional information about the Fund at www.PrincipalAM.com/prospectuses or you can request information by contacting us at 1-800-222-5852 or emailing prospectus@principalfunds.com.

Additional Information Phone Number

1-800-222-5852

Additional Information Email

Additional Information Website

Expenses [Text Block]

What were the Fund costs for the last six months?

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
Class A	$59	1.12%^{Footnote Reference*}

Footnote	Description
Footnote^*	Computed on an annualized basis.

Expenses Paid, Amount

$ 59

Expense Ratio, Percent

1.12%

^[31]

AssetsNet

$ 1,665,290,000

Holdings Count | Holding

InvestmentCompanyPortfolioTurnover

28.30%

Additional Fund Statistics [Text Block]

Fund Statistics

Net Assets (amount in thousands)$1,665,290
Total Number of Portfolio Holdings75
Portfolio Turnover Rate (annualized)28.3%

Holdings [Text Block]

Portfolio Allocation

Table Summary
Asset Weighting	Percent of Net Assets
Common Stocks	98.56%
Investment Companies	2.26%
Other Assets and Liabilities	(0.82)%
Total Net Assets	100.00%

Sector Allocation

Table Summary
Sector	Percent of Net Assets
Financial	25.58%
Industrial	24.33%
Consumer, Non-cyclical	12.50%
Consumer, Cyclical	11.62%
Technology	9.29%
Energy	5.61%
Utilities	5.03%
Basic Materials	2.55%
Money Market Funds	2.26%
Communications	2.05%
Other Assets and Liabilities	(0.82)%
Total Net Assets	100.00%

FV898SARA-0

C000115416

Shareholder Report [Line Items]

Fund Name

Small-MidCap Dividend Income Fund

Class Name

Class C

Trading Symbol

PMDDX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Small-MidCap Dividend Income Fund (the "Fund") for the period of September 1, 2025 to February 28, 2026.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

You can find additional information about the Fund at www.PrincipalAM.com/prospectuses or you can request information by contacting us at 1-800-222-5852 or emailing prospectus@principalfunds.com.

Additional Information Phone Number

1-800-222-5852

Additional Information Email

Additional Information Website

Expenses [Text Block]

What were the Fund costs for the last six months?

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
Class C	$98	1.87%^{Footnote Reference*}

Footnote	Description
Footnote^*	Computed on an annualized basis.

Expenses Paid, Amount

$ 98

Expense Ratio, Percent

1.87%

^[32]

AssetsNet

$ 1,665,290,000

Holdings Count | Holding

InvestmentCompanyPortfolioTurnover

28.30%

Additional Fund Statistics [Text Block]

Fund Statistics

Net Assets (amount in thousands)$1,665,290
Total Number of Portfolio Holdings75
Portfolio Turnover Rate (annualized)28.3%

Holdings [Text Block]

Portfolio Allocation

Table Summary
Asset Weighting	Percent of Net Assets
Common Stocks	98.56%
Investment Companies	2.26%
Other Assets and Liabilities	(0.82)%
Total Net Assets	100.00%

Sector Allocation

Table Summary
Sector	Percent of Net Assets
Financial	25.58%
Industrial	24.33%
Consumer, Non-cyclical	12.50%
Consumer, Cyclical	11.62%
Technology	9.29%
Energy	5.61%
Utilities	5.03%
Basic Materials	2.55%
Money Market Funds	2.26%
Communications	2.05%
Other Assets and Liabilities	(0.82)%
Total Net Assets	100.00%

FV898SARC-0

C000101661

Shareholder Report [Line Items]

Fund Name

Small-MidCap Dividend Income Fund

Class Name

Institutional

Trading Symbol

PMDIX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Small-MidCap Dividend Income Fund (the "Fund") for the period of September 1, 2025 to February 28, 2026.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

You can find additional information about the Fund at www.PrincipalAM.com/prospectuses or you can request information by contacting us at 1-800-222-5852 or emailing prospectus@principalfunds.com.

Additional Information Phone Number

1-800-222-5852

Additional Information Email

Additional Information Website

Expenses [Text Block]

What were the Fund costs for the last six months?

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
Institutional	$45	0.85%^{Footnote Reference*}

Footnote	Description
Footnote^*	Computed on an annualized basis.

Expenses Paid, Amount

$ 45

Expense Ratio, Percent

0.85%

^[33]

AssetsNet

$ 1,665,290,000

Holdings Count | Holding

InvestmentCompanyPortfolioTurnover

28.30%

Additional Fund Statistics [Text Block]

Fund Statistics

Net Assets (amount in thousands)$1,665,290
Total Number of Portfolio Holdings75
Portfolio Turnover Rate (annualized)28.3%

Holdings [Text Block]

Portfolio Allocation

Table Summary
Asset Weighting	Percent of Net Assets
Common Stocks	98.56%
Investment Companies	2.26%
Other Assets and Liabilities	(0.82)%
Total Net Assets	100.00%

Sector Allocation

Table Summary
Sector	Percent of Net Assets
Financial	25.58%
Industrial	24.33%
Consumer, Non-cyclical	12.50%
Consumer, Cyclical	11.62%
Technology	9.29%
Energy	5.61%
Utilities	5.03%
Basic Materials	2.55%
Money Market Funds	2.26%
Communications	2.05%
Other Assets and Liabilities	(0.82)%
Total Net Assets	100.00%

FV898SARI-0

C000176330

Shareholder Report [Line Items]

Fund Name

Small-MidCap Dividend Income Fund

Class Name

R-6

Trading Symbol

PMDHX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Small-MidCap Dividend Income Fund (the "Fund") for the period of September 1, 2025 to February 28, 2026.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

You can find additional information about the Fund at www.PrincipalAM.com/prospectuses or you can request information by contacting us at 1-800-222-5852 or emailing prospectus@principalfunds.com.

Additional Information Phone Number

1-800-222-5852

Additional Information Email

Additional Information Website

Expenses [Text Block]

What were the Fund costs for the last six months?

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
R-6	$41	0.78%^{Footnote Reference*}

Footnote	Description
Footnote^*	Computed on an annualized basis.

Expenses Paid, Amount

$ 41

Expense Ratio, Percent

0.78%

^[34]

AssetsNet

$ 1,665,290,000

Holdings Count | Holding

InvestmentCompanyPortfolioTurnover

28.30%

Additional Fund Statistics [Text Block]

Fund Statistics

Net Assets (amount in thousands)$1,665,290
Total Number of Portfolio Holdings75
Portfolio Turnover Rate (annualized)28.3%

Holdings [Text Block]

Portfolio Allocation

Table Summary
Asset Weighting	Percent of Net Assets
Common Stocks	98.56%
Investment Companies	2.26%
Other Assets and Liabilities	(0.82)%
Total Net Assets	100.00%

Sector Allocation

Table Summary
Sector	Percent of Net Assets
Financial	25.58%
Industrial	24.33%
Consumer, Non-cyclical	12.50%
Consumer, Cyclical	11.62%
Technology	9.29%
Energy	5.61%
Utilities	5.03%
Basic Materials	2.55%
Money Market Funds	2.26%
Communications	2.05%
Other Assets and Liabilities	(0.82)%
Total Net Assets	100.00%

FV898SARR6-0

C000019597

Shareholder Report [Line Items]

Fund Name

Spectrum Preferred and Capital Securities Income Fund

Class Name

Class A

Trading Symbol

PPSAX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Spectrum Preferred and Capital Securities Income Fund (the "Fund") for the period of September 1, 2025 to February 28, 2026.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

You can find additional information about the Fund at www.PrincipalAM.com/prospectuses or you can request information by contacting us at 1-800-222-5852 or emailing prospectus@principalfunds.com.

Additional Information Phone Number

1-800-222-5852

Additional Information Email

Additional Information Website

Expenses [Text Block]

What were the Fund costs for the last six months?

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
Class A	$53	1.05%^{Footnote Reference*}

Footnote	Description
Footnote^*	Computed on an annualized basis.

Expenses Paid, Amount

$ 53

Expense Ratio, Percent

1.05%

^[35]

AssetsNet

$ 5,177,627,000

Holdings Count | Holding

321

InvestmentCompanyPortfolioTurnover

50.90%

Additional Fund Statistics [Text Block]

Fund Statistics

Net Assets (amount in thousands)$5,177,627
Total Number of Portfolio Holdings321
Portfolio Turnover Rate (annualized)50.9%

Holdings [Text Block]

Portfolio Allocation

Table Summary
Asset Weighting	Percent of Net Assets
Bonds	87.20%
Preferred Stocks	10.56%
Investment Companies	2.83%
Convertible Preferred Stocks	0.06%
Other Assets and Liabilities	(0.65)%
Total Net Assets	100.00%

Sector Allocation

Table Summary
Sector	Percent of Net Assets
Financial	82.42%
Utilities	7.25%
Energy	5.37%
Money Market Funds	2.07%
Communications	1.40%
Government	1.17%
Exchange-Traded Funds	0.76%
Consumer, Non-cyclical	0.21%
Other Assets and Liabilities	(0.65)%
Total Net Assets	100.00%

FV887SARA-0

C000038790

Shareholder Report [Line Items]

Fund Name

Spectrum Preferred and Capital Securities Income Fund

Class Name

Class C

Trading Symbol

PRFCX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Spectrum Preferred and Capital Securities Income Fund (the "Fund") for the period of September 1, 2025 to February 28, 2026.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

You can find additional information about the Fund at www.PrincipalAM.com/prospectuses or you can request information by contacting us at 1-800-222-5852 or emailing prospectus@principalfunds.com.

Additional Information Phone Number

1-800-222-5852

Additional Information Email

Additional Information Website

Expenses [Text Block]

What were the Fund costs for the last six months?

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
Class C	$92	1.82%^{Footnote Reference*}

Footnote	Description
Footnote^*	Computed on an annualized basis.

Expenses Paid, Amount

$ 92

Expense Ratio, Percent

1.82%

^[36]

AssetsNet

$ 5,177,627,000

Holdings Count | Holding

321

InvestmentCompanyPortfolioTurnover

50.90%

Additional Fund Statistics [Text Block]

Fund Statistics

Net Assets (amount in thousands)$5,177,627
Total Number of Portfolio Holdings321
Portfolio Turnover Rate (annualized)50.9%

Holdings [Text Block]

Portfolio Allocation

Table Summary
Asset Weighting	Percent of Net Assets
Bonds	87.20%
Preferred Stocks	10.56%
Investment Companies	2.83%
Convertible Preferred Stocks	0.06%
Other Assets and Liabilities	(0.65)%
Total Net Assets	100.00%

Sector Allocation

Table Summary
Sector	Percent of Net Assets
Financial	82.42%
Utilities	7.25%
Energy	5.37%
Money Market Funds	2.07%
Communications	1.40%
Government	1.17%
Exchange-Traded Funds	0.76%
Consumer, Non-cyclical	0.21%
Other Assets and Liabilities	(0.65)%
Total Net Assets	100.00%

FV887SARC-0

C000019596

Shareholder Report [Line Items]

Fund Name

Spectrum Preferred and Capital Securities Income Fund

Class Name

Class J

Trading Symbol

PPSJX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Spectrum Preferred and Capital Securities Income Fund (the "Fund") for the period of September 1, 2025 to February 28, 2026.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

You can find additional information about the Fund at www.PrincipalAM.com/prospectuses or you can request information by contacting us at 1-800-222-5852 or emailing prospectus@principalfunds.com.

Additional Information Phone Number

1-800-222-5852

Additional Information Email

Additional Information Website

Expenses [Text Block]

What were the Fund costs for the last six months?

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
Class J	$51	1.01%^{Footnote Reference*}

Footnote	Description
Footnote^*	Computed on an annualized basis.

Expenses Paid, Amount

$ 51

Expense Ratio, Percent

1.01%

^[37]

AssetsNet

$ 5,177,627,000

Holdings Count | Holding

321

InvestmentCompanyPortfolioTurnover

50.90%

Additional Fund Statistics [Text Block]

Fund Statistics

Net Assets (amount in thousands)$5,177,627
Total Number of Portfolio Holdings321
Portfolio Turnover Rate (annualized)50.9%

Holdings [Text Block]

Portfolio Allocation

Table Summary
Asset Weighting	Percent of Net Assets
Bonds	87.20%
Preferred Stocks	10.56%
Investment Companies	2.83%
Convertible Preferred Stocks	0.06%
Other Assets and Liabilities	(0.65)%
Total Net Assets	100.00%

Sector Allocation

Table Summary
Sector	Percent of Net Assets
Financial	82.42%
Utilities	7.25%
Energy	5.37%
Money Market Funds	2.07%
Communications	1.40%
Government	1.17%
Exchange-Traded Funds	0.76%
Consumer, Non-cyclical	0.21%
Other Assets and Liabilities	(0.65)%
Total Net Assets	100.00%

FV887SARJ-0

C000019595

Shareholder Report [Line Items]

Fund Name

Spectrum Preferred and Capital Securities Income Fund

Class Name

Institutional

Trading Symbol

PPSIX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Spectrum Preferred and Capital Securities Income Fund (the "Fund") for the period of September 1, 2025 to February 28, 2026.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

You can find additional information about the Fund at www.PrincipalAM.com/prospectuses or you can request information by contacting us at 1-800-222-5852 or emailing prospectus@principalfunds.com.

Additional Information Phone Number

1-800-222-5852

Additional Information Email

Additional Information Website

Expenses [Text Block]

What were the Fund costs for the last six months?

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
Institutional	$41	0.81%^{Footnote Reference*}

Footnote	Description
Footnote^*	Computed on an annualized basis.

Expenses Paid, Amount

$ 41

Expense Ratio, Percent

0.81%

^[38]

AssetsNet

$ 5,177,627,000

Holdings Count | Holding

321

InvestmentCompanyPortfolioTurnover

50.90%

Additional Fund Statistics [Text Block]

Fund Statistics

Net Assets (amount in thousands)$5,177,627
Total Number of Portfolio Holdings321
Portfolio Turnover Rate (annualized)50.9%

Holdings [Text Block]

Portfolio Allocation

Table Summary
Asset Weighting	Percent of Net Assets
Bonds	87.20%
Preferred Stocks	10.56%
Investment Companies	2.83%
Convertible Preferred Stocks	0.06%
Other Assets and Liabilities	(0.65)%
Total Net Assets	100.00%

Sector Allocation

Table Summary
Sector	Percent of Net Assets
Financial	82.42%
Utilities	7.25%
Energy	5.37%
Money Market Funds	2.07%
Communications	1.40%
Government	1.17%
Exchange-Traded Funds	0.76%
Consumer, Non-cyclical	0.21%
Other Assets and Liabilities	(0.65)%
Total Net Assets	100.00%

FV887SARI-0

C000019591

Shareholder Report [Line Items]

Fund Name

Spectrum Preferred and Capital Securities Income Fund

Class Name

R-3

Trading Symbol

PNARX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Spectrum Preferred and Capital Securities Income Fund (the "Fund") for the period of September 1, 2025 to February 28, 2026.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

You can find additional information about the Fund at www.PrincipalAM.com/prospectuses or you can request information by contacting us at 1-800-222-5852 or emailing prospectus@principalfunds.com.

Additional Information Phone Number

1-800-222-5852

Additional Information Email

Additional Information Website

Expenses [Text Block]

What were the Fund costs for the last six months?

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
R-3	$64	1.27%^{Footnote Reference*}

Footnote	Description
Footnote^*	Computed on an annualized basis.

Expenses Paid, Amount

$ 64

Expense Ratio, Percent

1.27%

^[39]

AssetsNet

$ 5,177,627,000

Holdings Count | Holding

321

InvestmentCompanyPortfolioTurnover

50.90%

Additional Fund Statistics [Text Block]

Fund Statistics

Net Assets (amount in thousands)$5,177,627
Total Number of Portfolio Holdings321
Portfolio Turnover Rate (annualized)50.9%

Holdings [Text Block]

Portfolio Allocation

Table Summary
Asset Weighting	Percent of Net Assets
Bonds	87.20%
Preferred Stocks	10.56%
Investment Companies	2.83%
Convertible Preferred Stocks	0.06%
Other Assets and Liabilities	(0.65)%
Total Net Assets	100.00%

Sector Allocation

Table Summary
Sector	Percent of Net Assets
Financial	82.42%
Utilities	7.25%
Energy	5.37%
Money Market Funds	2.07%
Communications	1.40%
Government	1.17%
Exchange-Traded Funds	0.76%
Consumer, Non-cyclical	0.21%
Other Assets and Liabilities	(0.65)%
Total Net Assets	100.00%

FV887SARR3-0

C000019592

Shareholder Report [Line Items]

Fund Name

Spectrum Preferred and Capital Securities Income Fund

Class Name

R-5

Trading Symbol

PPARX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Spectrum Preferred and Capital Securities Income Fund (the "Fund") for the period of September 1, 2025 to February 28, 2026.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

You can find additional information about the Fund at www.PrincipalAM.com/prospectuses or you can request information by contacting us at 1-800-222-5852 or emailing prospectus@principalfunds.com.

Additional Information Phone Number

1-800-222-5852

Additional Information Email

Additional Information Website

Expenses [Text Block]

What were the Fund costs for the last six months?

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
R-5	$49	0.96%^{Footnote Reference*}

Footnote	Description
Footnote^*	Computed on an annualized basis.

Expenses Paid, Amount

$ 49

Expense Ratio, Percent

0.96%

^[40]

AssetsNet

$ 5,177,627,000

Holdings Count | Holding

321

InvestmentCompanyPortfolioTurnover

50.90%

Additional Fund Statistics [Text Block]

Fund Statistics

Net Assets (amount in thousands)$5,177,627
Total Number of Portfolio Holdings321
Portfolio Turnover Rate (annualized)50.9%

Holdings [Text Block]

Portfolio Allocation

Table Summary
Asset Weighting	Percent of Net Assets
Bonds	87.20%
Preferred Stocks	10.56%
Investment Companies	2.83%
Convertible Preferred Stocks	0.06%
Other Assets and Liabilities	(0.65)%
Total Net Assets	100.00%

Sector Allocation

Table Summary
Sector	Percent of Net Assets
Financial	82.42%
Utilities	7.25%
Energy	5.37%
Money Market Funds	2.07%
Communications	1.40%
Government	1.17%
Exchange-Traded Funds	0.76%
Consumer, Non-cyclical	0.21%
Other Assets and Liabilities	(0.65)%
Total Net Assets	100.00%

FV887SARR5-0

C000176328

Shareholder Report [Line Items]

Fund Name

Spectrum Preferred and Capital Securities Income Fund

Class Name

R-6

Trading Symbol

PPREX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Spectrum Preferred and Capital Securities Income Fund (the "Fund") for the period of September 1, 2025 to February 28, 2026.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

You can find additional information about the Fund at www.PrincipalAM.com/prospectuses or you can request information by contacting us at 1-800-222-5852 or emailing prospectus@principalfunds.com.

Additional Information Phone Number

1-800-222-5852

Additional Information Email

Additional Information Website

Expenses [Text Block]

What were the Fund costs for the last six months?

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
R-6	$36	0.71%^{Footnote Reference*}

Footnote	Description
Footnote^*	Computed on an annualized basis.

Expenses Paid, Amount

$ 36

Expense Ratio, Percent

0.71%

^[41]

AssetsNet

$ 5,177,627,000

Holdings Count | Holding

321

InvestmentCompanyPortfolioTurnover

50.90%

Additional Fund Statistics [Text Block]

Fund Statistics

Net Assets (amount in thousands)$5,177,627
Total Number of Portfolio Holdings321
Portfolio Turnover Rate (annualized)50.9%

Holdings [Text Block]

Portfolio Allocation

Table Summary
Asset Weighting	Percent of Net Assets
Bonds	87.20%
Preferred Stocks	10.56%
Investment Companies	2.83%
Convertible Preferred Stocks	0.06%
Other Assets and Liabilities	(0.65)%
Total Net Assets	100.00%

Sector Allocation

Table Summary
Sector	Percent of Net Assets
Financial	82.42%
Utilities	7.25%
Energy	5.37%
Money Market Funds	2.07%
Communications	1.40%
Government	1.17%
Exchange-Traded Funds	0.76%
Consumer, Non-cyclical	0.21%
Other Assets and Liabilities	(0.65)%
Total Net Assets	100.00%

FV887SARR6-0

[1]	Computed on an annualized basis.
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[17]	Expenses are for the period from November 14, 2025, date operations commenced, through February 28, 2026. Expenses for the full reporting period would be higher.
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