485BPOS

1933 Act Registration No. 002-74747
1940 Act Registration No. 811-03313

As filed with the Securities and Exchange Commission on November 19, 2018

FORM N-1A

REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933

Pre-Effective Amendment No.	☐
Post-Effective Amendment No. 101	☒

and/or

REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY
ACT OF 1940

Amendment No. 101 ☒

FIRST AMERICAN FUNDS, INC.
(Exact Name of Registrant as Specified in Charter)

800 Nicollet Mall
Minneapolis, Minnesota 55402
(Address of Principal Executive Offices) (Zip Code)

(612) 303-7987
(Registrant’s Telephone Number, including Area Code)

Richard J. Ertel
U.S. Bancorp Asset Management, Inc.
800 Nicollet Mall, BC-MN-H04N
Minneapolis, Minnesota 55402-7020
(Name and Address of Agent for Service)

It is proposed that this filing will become effective (check appropriate box):

☒ immediately upon filing pursuant to paragraph (b) of Rule 485

☐
on (date) pursuant to paragraph (b) of Rule 485

☐
60 days after filing pursuant to paragraph (a)(1) of Rule 485

☐
on (date) pursuant to paragraph (a)(1) of Rule 485

☐
75 days after filing pursuant to paragraph (a)(2) of Rule 485

☐
on (date) pursuant to paragraph (a)(2) of Rule 485

Index to Exhibits

Exhibit Number	Name of Exhibit
101.INS	XBRL Instance Document
101.SCH	XBRL Taxonomy Extension Schema Document
101.CAL	XBRL Taxonomy Extension Calculation Linkbase
101.DEF	XBRL Taxonomy Extension Definition Linkbase
101.LAB	XBRL Taxonomy Extension Labels Linkbase
101.PRE	XBRL Taxonomy Extension Presentation Linkbase

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, as amended, and the Investment Company Act of 1940, as amended, the Registrant certifies that it meets all of the requirements for effectiveness of this Registration Statement under Rule 485(b) under the Securities Act and has duly caused this Post-Effective Amendment to its Registration Statement Nos. 002-74747 and 811-03313 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Minneapolis, State of Minnesota, on the 19th day of November, 2018.

FIRST AMERICAN FUNDS, INC.
By:	/s/ Eric J. Thole
	Eric J. Thole, President

Pursuant to the requirements of the Securities Act of 1933, as amended, this Amendment to the Registration Statement has been signed below by the following persons in the capacities indicated and on November 19, 2018.

SIGNATURE	TITLE
/s/ Eric J. Thole	President
Eric J. Thole
/s/ Jill M. Stevenson	Treasurer (principal financial/accounting officer)
Jill M. Stevenson
*	Director
David K. Baumgardner
*	Director
Mark E. Gaumond
*	Director
Roger A. Gibson
*	Director
Victoria J. Herget
*	Chair
Richard K. Riederer
*	Director
James M. Wade
* Richard J. Ertel, by signing his name hereto, does hereby sign this document on behalf of each of the above-named Directors of First American Funds, Inc. pursuant to the powers of attorney duly executed by such persons.
By: /s/ Richard J. Ertel	Attorney-in-Fact
Richard J. Ertel

XML

First American Government Obligations Fund | Class A

Government Obligations Fund

Investment Objective

Government Obligations Fund’s objective is to seek maximum current income to the extent consistent with the preservation of capital and maintenance of liquidity.

Fees and Expenses

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees	First American Government Obligations Fund Class A USD ($)
Maximum Sales Charge (Load)	none
Maximum Deferred Sales Charge (Load)	none
Annual Low Balance Account Fee (for accounts under $2,500)	$ 15

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses	First American Government Obligations Fund Class A
Management Fees	0.10%
Distribution and/or Service (12b-1) Fees	0.25%
Other Expenses: Shareholder Servicing Fee	0.25%
Other Expenses: Miscellaneous	0.17%
Total Annual Fund Operating Expenses	0.77%
Less Fee Waivers	(0.02%)	[1]
Net Expenses	0.75%	[1]

Example:

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
First American Government Obligations Fund | Class A | USD ($)	77	244	426	952

Principal Investment Strategies

Government Obligations Fund invests exclusively in short-term U.S. government securities, including repurchase agreements secured by U.S. government securities. U.S. government securities are bonds or other debt obligations issued or guaranteed as to principal and interest by the U.S. government or one of its agencies or instrumentalities. U.S. Treasury securities and some obligations of U.S. government agencies and instrumentalities are supported by the full faith and credit of the U.S. government. Other U.S. government securities are backed by the right of the issuer to borrow from the U.S. Treasury. Still others are supported only by the credit of the issuer or instrumentality.

Principal Risks

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the collateral and may experience losses if there is any delay in its ability to do so.

Fund Performance

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www.firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated.

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

Average Annual Total Returns	1 Year	5 Years	10 Years	Inception Date
First American Government Obligations Fund | Class A	0.21%	0.05%	0.20%	Sep. 24, 2001

First American Government Obligations Fund | Class D

Government Obligations Fund

Investment Objective

Government Obligations Fund’s objective is to seek maximum current income to the extent consistent with the preservation of capital and maintenance of liquidity.

Fees and Expenses

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees	First American Government Obligations Fund Class D
Maximum Sales Charge (Load)	none
Maximum Deferred Sales Charge (Load)	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses	First American Government Obligations Fund Class D
Management Fees	0.10%
Distribution and/or Service (12b-1) Fees	0.15%
Other Expenses: Shareholder Servicing Fee	0.25%
Other Expenses: Miscellaneous	0.14%
Total Annual Fund Operating Expenses	0.64%
Less Fee Waivers	(0.04%)	[1]
Net Expenses	0.60%	[1]

Example:

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
First American Government Obligations Fund | Class D | USD ($)	61	201	353	795

Principal Investment Strategies

Government Obligations Fund invests exclusively in short-term U.S. government securities, including repurchase agreements secured by U.S. government securities. U.S. government securities are bonds or other debt obligations issued or guaranteed as to principal and interest by the U.S. government or one of its agencies or instrumentalities. U.S. Treasury securities and some obligations of U.S. government agencies and instrumentalities are supported by the full faith and credit of the U.S. government. Other U.S. government securities are backed by the right of the issuer to borrow from the U.S. Treasury. Still others are supported only by the credit of the issuer or instrumentality.

Principal Risks

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the collateral and may experience losses if there is any delay in its ability to do so.

Fund Performance

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www. firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated.

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

Average Annual Total Returns	1 Year	5 Years	10 Years	Inception Date
First American Government Obligations Fund | Class D	0.33%	0.07%	0.23%	Jan. 21, 1995

First American Government Obligations Fund | Class P

Government Obligations Fund

Investment Objective

Government Obligations Fund’s objective is to seek maximum current income to the extent consistent with the preservation of capital and maintenance of liquidity.

Fees and Expenses

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees	First American Government Obligations Fund Class P
Maximum Sales Charge (Load)	none
Maximum Deferred Sales Charge (Load)	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses	First American Government Obligations Fund Class P
Management Fees	0.10%
Distribution and/or Service (12b-1) Fees	none
Other Expenses	0.13%
Total Annual Fund Operating Expenses	0.23%
Less Fee Waivers	(0.05%)	[1]
Net Expenses	0.18%	[1]

Example:

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
First American Government Obligations Fund | Class P | USD ($)	18	69	124	288

Principal Investment Strategies

Government Obligations Fund invests exclusively in short-term U.S. government securities, including repurchase agreements secured by U.S. government securities. U.S. government securities are bonds or other debt obligations issued or guaranteed as to principal and interest by the U.S. government or one of its agencies or instrumentalities. U.S. Treasury securities and some obligations of U.S. government agencies and instrumentalities are supported by the full faith and credit of the U.S. government. Other U.S. government securities are backed by the right of the issuer to borrow from the U.S. Treasury. Still others are supported only by the credit of the issuer or instrumentality.

Principal Risks

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the collateral and may experience losses if there is any delay in its ability to do so.

Fund Performance

The following bar chart and table provide some indication of the potential risks of investing in the fund by showing changes in the fund’s performance (for Class A shares). The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www. firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s Class A share performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated. The bar chart does not reflect sales loads as none are applicable to Class P shares. Performance information for Class P shares will be provided after such shares have one full calendar year of performance.

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

Average Annual Total Returns	1 Year	5 Years	10 Years	Inception Date
First American Government Obligations Fund | Class A	0.21%	0.05%	0.20%	Sep. 24, 2001

First American Government Obligations Fund | Class U

Government Obligations Fund

Investment Objective

Government Obligations Fund’s objective is to seek maximum current income to the extent consistent with the preservation of capital and maintenance of liquidity.

Fees and Expenses

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees	First American Government Obligations Fund Class U
Maximum Sales Charge (Load)	none
Maximum Deferred Sales Charge (Load)	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses	First American Government Obligations Fund Class U
Management Fees	0.10%
Distribution and/or Service (12b-1) Fees	none
Other Expenses	0.14%
Total Annual Fund Operating Expenses	0.24%
Less Fee Waivers	(0.12%)	[1]
Net Expenses	0.12%	[1]

Example:

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
First American Government Obligations Fund | Class U | USD ($)	12	65	123	294

Principal Investment Strategies

Government Obligations Fund invests exclusively in short-term U.S. government securities, including repurchase agreements secured by U.S. government securities. U.S. government securities are bonds or other debt obligations issued or guaranteed as to principal and interest by the U.S. government or one of its agencies or instrumentalities. U.S. Treasury securities and some obligations of U.S. government agencies and instrumentalities are supported by the full faith and credit of the U.S. government. Other U.S. government securities are backed by the right of the issuer to borrow from the U.S. Treasury. Still others are supported only by the credit of the issuer or instrumentality.

Principal Risks

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the collateral and may experience losses if there is any delay in its ability to do so.

Fund Performance

The following bar chart and table provide some indication of the potential risks of investing in the fund by showing changes in the fund’s performance (for Class A shares). The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www. firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s Class A share performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated. The bar chart does not reflect sales loads as none are applicable to Class U shares . Performance information for Class U shares will be provided after such shares have one full calendar year of performance.

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

Average Annual Total Returns	1 Year	5 Years	10 Years	Inception Date
First American Government Obligations Fund | Class A	0.21%	0.05%	0.20%	Sep. 24, 2001

First American Government Obligations Fund | Class V

Government Obligations Fund

Investment Objective

Government Obligations Fund’s objective is to seek maximum current income to the extent consistent with the preservation of capital and maintenance of liquidity.

Fees and Expenses

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees	First American Government Obligations Fund Class V
Maximum Sales Charge (Load)	none
Maximum Deferred Sales Charge (Load)	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses	First American Government Obligations Fund Class V
Management Fees	0.10%
Distribution and/or Service (12b-1) Fees	none
Other Expenses: Shareholder Servicing Fee	0.10%
Other Expenses: Miscellaneous	0.14%
Total Annual Fund Operating Expenses	0.34%
Less Fee Waivers	(0.04%)	[1]
Net Expenses	0.30%	[1]

Example:

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
First American Government Obligations Fund | Class V | USD ($)	31	105	187	427

Principal Investment Strategies

Government Obligations Fund invests exclusively in short-term U.S. government securities, including repurchase agreements secured by U.S. government securities. U.S. government securities are bonds or other debt obligations issued or guaranteed as to principal and interest by the U.S. government or one of its agencies or instrumentalities. U.S. Treasury securities and some obligations of U.S. government agencies and instrumentalities are supported by the full faith and credit of the U.S. government. Other U.S. government securities are backed by the right of the issuer to borrow from the U.S. Treasury. Still others are supported only by the credit of the issuer or instrumentality.

Principal Risks

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the collateral and may experience losses if there is any delay in its ability to do so.

Fund Performance

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www. firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated.

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

Average Annual Total Returns	1 Year	5 Years	10 Years	Inception Date
First American Government Obligations Fund | Class V	0.63%	0.15%	0.32%	Mar. 31, 2006

First American Government Obligations Fund | Class X

Government Obligations Fund

Investment Objective

Government Obligations Fund’s objective is to seek maximum current income to the extent consistent with the preservation of capital and maintenance of liquidity.

Fees and Expenses

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees	First American Government Obligations Fund Class X
Maximum Sales Charge (Load)	none
Maximum Deferred Sales Charge (Load)	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses	First American Government Obligations Fund Class X
Management Fees	0.10%
Distribution and/or Service (12b-1) Fees	none
Other Expenses	0.14%
Total Annual Fund Operating Expenses	0.24%
Less Fee Waivers	(0.10%)	[1]
Net Expenses	0.14%	[1]

Example:

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
First American Government Obligations Fund | Class X | USD ($)	14	67	125	296

Principal Investment Strategies

Government Obligations Fund invests exclusively in short-term U.S. government securities, including repurchase agreements secured by U.S. government securities. U.S. government securities are bonds or other debt obligations issued or guaranteed as to principal and interest by the U.S. government or one of its agencies or instrumentalities. U.S. Treasury securities and some obligations of U.S. government agencies and instrumentalities are supported by the full faith and credit of the U.S. government. Other U.S. government securities are backed by the right of the issuer to borrow from the U.S. Treasury. Still others are supported only by the credit of the issuer or instrumentality.

Principal Risks

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the collateral and may experience losses if there is any delay in its ability to do so.

Fund Performance

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www. firstamericanfunds.com or by calling 800 677-3863.

The bar chart and the table show the fund’s performance for the most recent calendar year

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

Average Annual Total Returns	1 Year	Since Inception	Inception Date
First American Government Obligations Fund | Class X	0.79%	1.01%	Apr. 05, 2016

First American Government Obligations Fund | Class Y

Government Obligations Fund

Investment Objective

Government Obligations Fund’s objective is to seek maximum current income to the extent consistent with the preservation of capital and maintenance of liquidity.

Fees and Expenses

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees	First American Government Obligations Fund Class Y
Maximum Sales Charge (Load)	none
Maximum Deferred Sales Charge (Load)	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses	First American Government Obligations Fund Class Y
Management Fees	0.10%
Distribution and/or Service (12b-1) Fees	none
Other Expenses: Shareholder Servicing Fee	0.25%
Other Expenses: Miscellaneous	0.14%
Total Annual Fund Operating Expenses	0.49%
Less Fee Waivers	(0.04%)	[1]
Net Expenses	0.45%	[1]

Example:

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
First American Government Obligations Fund | Class Y | USD ($)	46	153	270	612

Principal Investment Strategies

Government Obligations Fund invests exclusively in short-term U.S. government securities, including repurchase agreements secured by U.S. government securities. U.S. government securities are bonds or other debt obligations issued or guaranteed as to principal and interest by the U.S. government or one of its agencies or instrumentalities. U.S. Treasury securities and some obligations of U.S. government agencies and instrumentalities are supported by the full faith and credit of the U.S. government. Other U.S. government securities are backed by the right of the issuer to borrow from the U.S. Treasury. Still others are supported only by the credit of the issuer or instrumentality.

Principal Risks

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the collateral and may experience losses if there is any delay in its ability to do so.

Fund Performance

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www.firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated.

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

Average Annual Total Returns	1 Year	5 Years	10 Years	Inception Date
First American Government Obligations Fund | Class Y	0.48%	0.10%	0.27%	Mar. 01, 1990

First American Government Obligations Fund | Class Z

Government Obligations Fund

Investment Objective

Government Obligations Fund’s objective is to seek maximum current income to the extent consistent with the preservation of capital and maintenance of liquidity.

Fees and Expenses

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees	First American Government Obligations Fund Class Z
Maximum Sales Charge (Load)	none
Maximum Deferred Sales Charge (Load)	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses	First American Government Obligations Fund Class Z
Management Fees	0.10%
Distribution and/or Service (12b-1) Fees	none
Other Expenses	0.14%
Total Annual Fund Operating Expenses	0.24%
Less Fee Waivers	(0.06%)	[1]
Net Expenses	0.18%	[1]

Example:

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
First American Government Obligations Fund | Class Z | USD ($)	18	71	129	300

Principal Investment Strategies

Government Obligations Fund invests exclusively in short-term U.S. government securities, including repurchase agreements secured by U.S. government securities. U.S. government securities are bonds or other debt obligations issued or guaranteed as to principal and interest by the U.S. government or one of its agencies or instrumentalities. U.S. Treasury securities and some obligations of U.S. government agencies and instrumentalities are supported by the full faith and credit of the U.S. government. Other U.S. government securities are backed by the right of the issuer to borrow from the U.S. Treasury. Still others are supported only by the credit of the issuer or instrumentality.

Principal Risks

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the collateral and may experience losses if there is any delay in its ability to do so.

Fund Performance

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www.firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated.

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

Average Annual Total Returns	1 Year	5 Years	10 Years	Inception Date
First American Government Obligations Fund | Class Z	0.75%	0.20%	0.36%	Dec. 01, 2003

[1] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.75%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[1] Total return for the period 1/1/18 through 9/30/18 was 0.74%.

[1] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.60%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[1] Total return for the period 1/1/18 through 9/30/18 was 0.85%.

[1] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.18%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[1] Total return for the period 1/1/18 through 9/30/18 was 0.74%.

[1] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that the total annual fund operating expenses, after waivers, do not exceed 0.12%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[1] Total return for the period 1/1/18 through 9/30/18 was 0.74%.

[1] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.30%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[1] Total return for the period 1/1/18 through 9/30/18 was 1.08%.

[1] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.14%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[1] Total return for the period 1/1/18 through 9/30/18 was 1.20%.

[1] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.45%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[1] Total return for the period 1/1/18 through 9/30/18 was 0.96%.

[1] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.18%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[1] Total return for the period 1/1/18 through 9/30/18 was 1.17%.

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First American Institutional Prime Obligations Fund | Class T

Institutional Prime Obligations Fund

Investment Objective

Institutional Prime Obligations Fund’s objective is to seek maximum current income to the extent consistent with the preservation of capital and maintenance of liquidity.

Fees and Expenses

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees	First American Institutional Prime Obligations Fund Class T
Maximum Sales Charge (Load)	none
Maximum Deferred Sales Charge (Load)	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses	First American Institutional Prime Obligations Fund Class T
Management Fees	0.10%
Distribution and/or Service (12b-1) Fees	none
Other Expenses: Shareholder Servicing Fee	0.20%
Other Expenses: Miscellaneous	0.20%
Total Annual Fund Operating Expenses	0.50%
Less Fee Waivers	(0.10%)	[1]
Net Expenses	0.40%	[1]

Example:

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
First American Institutional Prime Obligations Fund | Class T | USD ($)	41	150	270	619

Principal Investment Strategies

Institutional Prime Obligations Fund invests in high-quality short-term debt obligations, including:

● commercial paper;

● U.S. dollar-denominated obligations of domestic and foreign banks with total assets of at least $500 million (including fixed and variable rate certificates of deposit, time deposits, and bankers’ acceptances);

● non-convertible corporate debt securities;

● securities issued by the U.S. government or one of its agencies or instrumentalities;

● municipal securities, including variable rate demand notes, commercial paper, and municipal notes and other short-term municipal obligations;

● loan participation interests; and

● repurchase agreements.

The fund concentrates its investments in the banking industry. Therefore, under normal market conditions, the fund will invest more than 25% of its total assets in securities issued by companies in the banking industry. The fund may, however, invest 25% or less of its total assets in this industry as a temporary defensive measure.

The advisor will only purchase (and hold) securities that it determines present minimal credit risk. If a security is no longer determined to present minimal credit risk, the advisor will make every attempt to sell the security, unless it has determined that it would not be in the best interest of the fund to dispose of the security at that time and, where necessary, has obtained the approval of the fund’s board of directors to continue to hold the security.

Principal Risks

You could lose money by investing in the fund. Because the share price of the fund will fluctuate, when you sell your shares they may be worth more or less than what you originally paid for them. The fund may impose a fee upon sale of your shares or may temporarily suspend your ability to sell shares if the fund’s liquidity falls below required minimums because of market conditions or other factors. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Banking Industry Risk — An adverse development in the banking industry (domestic or foreign) may affect the value of the fund’s investments more than if the fund were not invested to such a degree in the banking industry. Banks may be particularly susceptible to certain economic factors such as interest rate changes, adverse developments in the real estate market, fiscal, regulatory and monetary policy and general economic cycles.

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Foreign Security Risk — Securities of foreign issuers, even when dollar denominated and publicly traded in the United States, may involve risks not associated with the securities of domestic issuers. Uncertainty surrounding the sovereign debt of several European Union countries, as well as the continued existence of the European Union itself, has disrupted and may continue to disrupt markets in the United States and around the world. If a country changes its currency or leaves the European Union or if the European Union dissolves, the world’s securities markets likely will be significantly disrupted.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security, or a liquidity provider defaults on its obligation to purchase the security when properly tendered by the fund.

Municipal Security Risk — The value of municipal securities owned by the fund may be adversely affected by future changes in federal income tax laws, including rate reductions or the imposition of a flat tax, and adverse changes in the financial conditions of municipal securities issuers.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the securities purchased and may experience losses if the proceeds from the sale of the securities are less than the full repurchase price.

Variable Rate Demand Note (VRDN) Risk — Investments in VRDNs involve credit risk with respect to the issuer or financial institution providing the fund with the credit and liquidity support for the unconditional put option.

Fund Performance

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www. firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated.

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

Average Annual Total Returns		1 Year	5 Years	10 Years	Inception Date
First American Institutional Prime Obligations Fund | Class T	[1]	0.77%	0.18%	0.38%	Sep. 24, 2001

First American Institutional Prime Obligations Fund | Class V

Institutional Prime Obligations Fund

Investment Objective

Institutional Prime Obligations Fund’s objective is to seek maximum current income to the extent consistent with the preservation of capital and maintenance of liquidity.

Fees and Expenses

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees	First American Institutional Prime Obligations Fund Class V
Maximum Sales Charge (Load)	none
Maximum Deferred Sales Charge (Load)	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses	First American Institutional Prime Obligations Fund Class V
Management Fees	0.10%
Distribution and/or Service (12b-1) Fees	none
Other Expenses: Shareholder Servicing Fee	0.10%
Other Expenses: Miscellaneous	0.20%
Total Annual Fund Operating Expenses	0.40%
Less Fee Waivers	(0.10%)	[1]
Net Expenses	0.30%	[1]

Example:

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
First American Institutional Prime Obligations Fund | Class V | USD ($)	31	118	214	495

Principal Investment Strategies

Institutional Prime Obligations Fund invests in high-quality short-term debt obligations, including:

● commercial paper;

● U.S. dollar-denominated obligations of domestic and foreign banks with total assets of at least $500 million (including fixed and variable rate certificates of deposit, time deposits, and bankers’ acceptances);

● non-convertible corporate debt securities;

● securities issued by the U.S. government or one of its agencies or instrumentalities;

● municipal securities, including variable rate demand notes, commercial paper, and municipal notes and other short-term municipal obligations;

● loan participation interests; and

● repurchase agreements.

The fund concentrates its investments in the banking industry. Therefore, under normal market conditions, the fund will invest more than 25% of its total assets in securities issued by companies in the banking industry. The fund may, however, invest 25% or less of its total assets in this industry as a temporary defensive measure.

The advisor will only purchase (and hold) securities that it determines present minimal credit risk. If a security is no longer determined to present minimal credit risk, the advisor will make every attempt to sell the security, unless it has determined that it would not be in the best interest of the fund to dispose of the security at that time and, where necessary, has obtained the approval of the fund’s board of directors to continue to hold the security.

Principal Risks

You could lose money by investing in the fund. Because the share price of the fund will fluctuate, when you sell your shares they may be worth more or less than what you originally paid for them. The fund may impose a fee upon sale of your shares or may temporarily suspend your ability to sell shares if the fund’s liquidity falls below required minimums because of market conditions or other factors. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Banking Industry Risk — An adverse development in the banking industry (domestic or foreign) may affect the value of the fund’s investments more than if the fund were not invested to such a degree in the banking industry. Banks may be particularly susceptible to certain economic factors such as interest rate changes, adverse developments in the real estate market, fiscal, regulatory and monetary policy and general economic cycles.

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Foreign Security Risk — Securities of foreign issuers, even when dollar denominated and publicly traded in the United States, may involve risks not associated with the securities of domestic issuers. Uncertainty surrounding the sovereign debt of several European Union countries, as well as the continued existence of the European Union itself, has disrupted and may continue to disrupt markets in the United States and around the world. If a country changes its currency or leaves the European Union or if the European Union dissolves, the world’s securities markets likely will be significantly disrupted.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security, or a liquidity provider defaults on its obligation to purchase the security when properly tendered by the fund.

Municipal Security Risk — The value of municipal securities owned by the fund may be adversely affected by future changes in federal income tax laws, including rate reductions or the imposition of a flat tax, and adverse changes in the financial conditions of municipal securities issuers.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the securities purchased and may experience losses if the proceeds from the sale of the securities are less than the full repurchase price.

Variable Rate Demand Note (VRDN) Risk — Investments in VRDNs involve credit risk with respect to the issuer or financial institution providing the fund with the credit and liquidity support for the unconditional put option.

Fund Performance

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www.firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated.

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

Average Annual Total Returns		1 Year	5 Years	10 Years	Inception Date
First American Institutional Prime Obligations Fund | Class V	[1]	0.86%	0.22%	0.42%	Mar. 31, 2006

First American Institutional Prime Obligations Fund | Class X

Institutional Prime Obligations Fund

Investment Objective

Institutional Prime Obligations Fund’s objective is to seek maximum current income to the extent consistent with the preservation of capital and maintenance of liquidity.

Fees and Expenses

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees	First American Institutional Prime Obligations Fund Class X
Maximum Sales Charge (Load)	none
Maximum Deferred Sales Charge (Load)	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses	First American Institutional Prime Obligations Fund Class X
Management Fees	0.10%
Distribution and/or Service (12b-1) Fees	none
Other Expenses	0.18%
Total Annual Fund Operating Expenses	0.28%
Less Fee Waivers	(0.14%)	[1]
Net Expenses	0.14%	[1]

Example:

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
First American Institutional Prime Obligations Fund | Class X | USD ($)	14	76	143	342

Principal Investment Strategies

Institutional Prime Obligations Fund invests in high-quality short-term debt obligations, including:

● commercial paper;

● U.S. dollar-denominated obligations of domestic and foreign banks with total assets of at least $500 million (including fixed and variable rate certificates of deposit, time deposits, and bankers’ acceptances);

● non-convertible corporate debt securities;

● securities issued by the U.S. government or one of its agencies or instrumentalities;

● municipal securities, including variable rate demand notes, commercial paper, and municipal notes and other short-term municipal obligations;

● loan participation interests; and

● repurchase agreements.

The fund concentrates its investments in the banking industry. Therefore, under normal market conditions, the fund will invest more than 25% of its total assets in securities issued by companies in the banking industry. The fund may, however, invest 25% or less of its total assets in this industry as a temporary defensive measure.

The advisor will only purchase (and hold) securities that it determines present minimal credit risk. If a security is no longer determined to present minimal credit risk, the advisor will make every attempt to sell the security, unless it has determined that it would not be in the best interest of the fund to dispose of the security at that time and, where necessary, has obtained the approval of the fund’s board of directors to continue to hold the security.

Principal Risks

You could lose money by investing in the fund. Because the share price of the fund will fluctuate, when you sell your shares they may be worth more or less than what you originally paid for them. The fund may impose a fee upon sale of your shares or may temporarily suspend your ability to sell shares if the fund’s liquidity falls below required minimums because of market conditions or other factors. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Banking Industry Risk — An adverse development in the banking industry (domestic or foreign) may affect the value of the fund’s investments more than if the fund were not invested to such a degree in the banking industry. Banks may be particularly susceptible to certain economic factors such as interest rate changes, adverse developments in the real estate market, fiscal, regulatory and monetary policy and general economic cycles.

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Foreign Security Risk — Securities of foreign issuers, even when dollar denominated and publicly traded in the United States, may involve risks not associated with the securities of domestic issuers. Uncertainty surrounding the sovereign debt of several European Union countries, as well as the continued existence of the European Union itself, has disrupted and may continue to disrupt markets in the United States and around the world. If a country changes its currency or leaves the European Union or if the European Union dissolves, the world’s securities markets likely will be significantly disrupted.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security, or a liquidity provider defaults on its obligation to purchase the security when properly tendered by the fund.

Municipal Security Risk — The value of municipal securities owned by the fund may be adversely affected by future changes in federal income tax laws, including rate reductions or the imposition of a flat tax, and adverse changes in the financial conditions of municipal securities issuers.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the securities purchased and may experience losses if the proceeds from the sale of the securities are less than the full repurchase price.

Variable Rate Demand Note (VRDN) Risk — Investments in VRDNs involve credit risk with respect to the issuer or financial institution providing the fund with the credit and liquidity support for the unconditional put option.

Fund Performance

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www.firstamericanfunds.com or by calling 800 677-3863.

The bar chart and table show the fund’s performance for the most recent calendar year.

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

Average Annual Total Returns	1 Year	Since Inception	Inception Date
First American Institutional Prime Obligations Fund | Class X	1.03%	1.30%	Apr. 05, 2016

First American Institutional Prime Obligations Fund | Class Y

Institutional Prime Obligations Fund

Investment Objective

Institutional Prime Obligations Fund’s objective is to seek maximum current income to the extent consistent with the preservation of capital and maintenance of liquidity.

Fees and Expenses

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees	First American Institutional Prime Obligations Fund Class Y
Maximum Sales Charge (Load)	none
Maximum Deferred Sales Charge (Load)	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses	First American Institutional Prime Obligations Fund Class Y
Management Fees	0.10%
Distribution and/or Service (12b-1) Fees	none
Other Expenses: Shareholder Servicing Fee	0.25%
Other Expenses: Miscellaneous	0.20%
Total Annual Fund Operating Expenses	0.55%
Less Fee Waivers	(0.10%)	[1]
Net Expenses	0.45%	[1]

Example:

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
First American Institutional Prime Obligations Fund | Class Y | USD ($)	46	166	297	680

Principal Investment Strategies

Institutional Prime Obligations Fund invests in high-quality short-term debt obligations, including:

● commercial paper;

● U.S. dollar-denominated obligations of domestic and foreign banks with total assets of at least $500 million (including fixed and variable rate certificates of deposit, time deposits, and bankers’ acceptances);

● non-convertible corporate debt securities;

● securities issued by the U.S. government or one of its agencies or instrumentalities;

● municipal securities, including variable rate demand notes, commercial paper, and municipal notes and other short-term municipal obligations;

● loan participation interests; and

● repurchase agreements.

The fund concentrates its investments in the banking industry. Therefore, under normal market conditions, the fund will invest more than 25% of its total assets in securities issued by companies in the banking industry. The fund may, however, invest 25% or less of its total assets in this industry as a temporary defensive measure.

The advisor will only purchase (and hold) securities that it determines present minimal credit risk. If a security is no longer determined to present minimal credit risk, the advisor will make every attempt to sell the security, unless it has determined that it would not be in the best interest of the fund to dispose of the security at that time and, where necessary, has obtained the approval of the fund’s board of directors to continue to hold the security.

Principal Risks

You could lose money by investing in the fund. Because the share price of the fund will fluctuate, when you sell your shares they may be worth more or less than what you originally paid for them. The fund may impose a fee upon sale of your shares or may temporarily suspend your ability to sell shares if the fund’s liquidity falls below required minimums because of market conditions or other factors. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Banking Industry Risk — An adverse development in the banking industry (domestic or foreign) may affect the value of the fund’s investments more than if the fund were not invested to such a degree in the banking industry. Banks may be particularly susceptible to certain economic factors such as interest rate changes, adverse developments in the real estate market, fiscal, regulatory and monetary policy and general economic cycles.

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Foreign Security Risk — Securities of foreign issuers, even when dollar denominated and publicly traded in the United States, may involve risks not associated with the securities of domestic issuers. Uncertainty surrounding the sovereign debt of several European Union countries, as well as the continued existence of the European Union itself, has disrupted and may continue to disrupt markets in the United States and around the world. If a country changes its currency or leaves the European Union or if the European Union dissolves, the world’s securities markets likely will be significantly disrupted.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security, or a liquidity provider defaults on its obligation to purchase the security when properly tendered by the fund.

Municipal Security Risk — The value of municipal securities owned by the fund may be adversely affected by future changes in federal income tax laws, including rate reductions or the imposition of a flat tax, and adverse changes in the financial conditions of municipal securities issuers.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the securities purchased and may experience losses if the proceeds from the sale of the securities are less than the full repurchase price.

Variable Rate Demand Note (VRDN) Risk — Investments in VRDNs involve credit risk with respect to the issuer or financial institution providing the fund with the credit and liquidity support for the unconditional put option.

Fund Performance

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www.firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated.

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

Average Annual Total Returns		1 Year	5 Years	10 Years	Inception Date
First American Institutional Prime Obligations Fund | Class Y	[1]	0.72%	0.16%	0.36%	Mar. 01, 1990

First American Institutional Prime Obligations Fund | Class Z

Institutional Prime Obligations Fund

Investment Objective

Institutional Prime Obligations Fund’s objective is to seek maximum current income to the extent consistent with the preservation of capital and maintenance of liquidity.

Fees and Expenses

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees	First American Institutional Prime Obligations Fund Class Z
Maximum Sales Charge (Load)	none
Maximum Deferred Sales Charge (Load)	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses	First American Institutional Prime Obligations Fund Class Z
Management Fees	0.10%
Distribution and/or Service (12b-1) Fees	none
Other Expenses	0.20%
Total Annual Fund Operating Expenses	0.30%
Less Fee Waivers	(0.10%)	[1]
Net Expenses	0.20%	[1]

Example:

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
First American Institutional Prime Obligations Fund | Class Z | USD ($)	20	86	159	371

Principal Investment Strategies

Institutional Prime Obligations Fund invests in high-quality short-term debt obligations, including:

● commercial paper;

● U.S. dollar-denominated obligations of domestic and foreign banks with total assets of at least $500 million (including fixed and variable rate certificates of deposit, time deposits, and bankers’ acceptances);

● non-convertible corporate debt securities;

● securities issued by the U.S. government or one of its agencies or instrumentalities;

● municipal securities, including variable rate demand notes, commercial paper, and municipal notes and other short-term municipal obligations;

● loan participation interests; and

● repurchase agreements.

The fund concentrates its investments in the banking industry. Therefore, under normal market conditions, the fund will invest more than 25% of its total assets in securities issued by companies in the banking industry. The fund may, however, invest 25% or less of its total assets in this industry as a temporary defensive measure.

The advisor will only purchase (and hold) securities that it determines present minimal credit risk. If a security is no longer determined to present minimal credit risk, the advisor will make every attempt to sell the security, unless it has determined that it would not be in the best interest of the fund to dispose of the security at that time and, where necessary, has obtained the approval of the fund’s board of directors to continue to hold the security.

Principal Risks

You could lose money by investing in the fund. Because the share price of the fund will fluctuate, when you sell your shares they may be worth more or less than what you originally paid for them. The fund may impose a fee upon sale of your shares or may temporarily suspend your ability to sell shares if the fund’s liquidity falls below required minimums because of market conditions or other factors. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Banking Industry Risk — An adverse development in the banking industry (domestic or foreign) may affect the value of the fund’s investments more than if the fund were not invested to such a degree in the banking industry. Banks may be particularly susceptible to certain economic factors such as interest rate changes, adverse developments in the real estate market, fiscal, regulatory and monetary policy and general economic cycles.

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Foreign Security Risk — Securities of foreign issuers, even when dollar denominated and publicly traded in the United States, may involve risks not associated with the securities of domestic issuers. Uncertainty surrounding the sovereign debt of several European Union countries, as well as the continued existence of the European Union itself, has disrupted and may continue to disrupt markets in the United States and around the world. If a country changes its currency or leaves the European Union or if the European Union dissolves, the world’s securities markets likely will be significantly disrupted.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security, or a liquidity provider defaults on its obligation to purchase the security when properly tendered by the fund.

Municipal Security Risk — The value of municipal securities owned by the fund may be adversely affected by future changes in federal income tax laws, including rate reductions or the imposition of a flat tax, and adverse changes in the financial conditions of municipal securities issuers.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the securities purchased and may experience losses if the proceeds from the sale of the securities are less than the full repurchase price.

Variable Rate Demand Note (VRDN) Risk — Investments in VRDNs involve credit risk with respect to the issuer or financial institution providing the fund with the credit and liquidity support for the unconditional put option.

Fund Performance

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www.firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated.

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

Average Annual Total Returns		1 Year	5 Years	10 Years	Inception Date
First American Institutional Prime Obligations Fund | Class Z	[1]	0.98%	0.27%	0.48%	Aug. 01, 2003

[1] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.40%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[1] Total return for the period 1/1/18 through 9/30/18 was 1.19%.

[1] Prior to October 14, 2016, the fund was named Prime Obligations Fund.

[1] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.30%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[1] Total return for the period 1/1/18 through 9/30/18 was 1.27%.

[1] Prior to October 14, 2016, the fund was named Prime Obligations Fund.

[1] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.14%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[1] Total return for the period 1/1/18 through 9/30/18 was 1.39%.

[1] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.45%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[1] Total return for the period 1/1/18 through 9/30/18 was 1.15%.

[1] Prior to October 14, 2016, the fund was named Prime Obligations Fund.

[1] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.20%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019, at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[1] Total return for the period 1/1/18 through 9/30/18 was 1.38%.

[1] Prior to October 14, 2016, the fund was named Prime Obligations Fund.

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First American Retail Tax Free Obligations Fund | Class A

Retail Tax Free Obligations Fund

Investment Objective

Retail Tax Free Obligations Fund’s objective is to seek maximum current income exempt from federal income taxes consistent with the preservation of capital and maintenance of liquidity.

Fees and Expenses

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees	First American Retail Tax Free Obligations Fund Class A USD ($)
Maximum Sales Charge (Load)	none
Maximum Deferred Sales Charge (Load)	none
Annual Low Balance Account Fee (for accounts under $2,500)	$ 15

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses	First American Retail Tax Free Obligations Fund Class A
Management Fees	0.10%
Distribution and/or Service (12b-1) Fees	0.25%
Other Expenses: Shareholder Servicing Fee	0.25%
Other Expenses: Miscellaneous	0.27%
Total Annual Fund Operating Expenses	0.87%
Less Fee Waivers	(0.12%)	[1]
Net Expenses	0.75%	[1]

Example:

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
First American Retail Tax Free Obligations Fund | Class A | USD ($)	77	266	470	1,061

Principal Investment Strategies

Under normal market conditions, Retail Tax Free Obligations Fund invests at least 80% of its total assets in high-quality, short-term municipal securities that pay interest that is exempt from federal income tax, including the federal alternative minimum tax. The municipal securities in which the fund invests include variable rate demand notes (VRDNs) and tender option bonds (TOBs), which are floating rate instruments that provide the fund with the option to put or tender the VRDN or TOB back to the issuer at par. VRDNs and TOBs typically have some form of external credit or liquidity support. The fund also may invest in other municipal securities, including commercial paper, municipal notes and other short-term municipal obligations.

Municipal securities are issued by state and local governments, and certain U.S. territorial possessions, to finance public infrastructure projects such as streets and highways, schools, water and sewer systems, hospitals, and airports. They also may be issued to refinance outstanding obligations as well as to obtain funds for general operating expenses and for loans to other public institutions and facilities. There are two principal classifications of municipal securities:

● general obligation bonds, which are backed by the full faith, credit, and taxing power of the issuer; and

● revenue bonds, which are payable only from the revenues generated by a specific project or from another specific revenue source.

Under normal market conditions, up to 20% of the fund’s total assets may be invested in taxable money market securities and municipal securities subject to the alternative minimum tax, although the fund does not currently intend to invest in municipal securities subject to the alternative minimum tax. Under abnormal market conditions, the fund may invest more than 20% of its total assets in such taxable securities, as conditions dictate. This may prevent the fund from achieving its goal of providing maximum current income exempt from federal income taxes.

Because the fund refers to tax-free investments in its name, it has a fundamental investment policy that it will normally invest its assets so that at least 80% of the income that it distributes will be exempt from federal regular income tax, including the federal alternative minimum tax. This policy may not be changed without shareholder approval.

Principal Risks

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. The fund may impose a fee upon sale of your shares or may temporarily suspend your ability to sell shares if the fund’s liquidity falls below required minimums because of market conditions or other factors. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security, or a liquidity provider defaults on its obligation to purchase the security when properly tendered by the fund.

Municipal Security Risk — The value of municipal securities owned by the fund may be adversely affected by future changes in federal income tax laws, including rate reductions or the imposition of a flat tax, and adverse changes in the financial conditions of municipal securities issuers.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Tax Risk — In order to be tax-exempt, municipal securities generally must meet certain regulatory requirements. If a municipal security fails to meet these requirements, the interest received by the fund from its investment in the security and distributed to shareholders may be taxable.

Variable Rate Demand Note (VRDN) and Tender Option Bond (TOB) Risk — Investments in VRDNs and TOBs involve credit risk with respect to the issuer or financial institution providing the fund with the credit and liquidity support for the put or tender option.

Fund Performance

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www.firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated.

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

Average Annual Total Returns		1 Year	5 Years	10 Years	Inception Date
First American Retail Tax Free Obligations Fund | Class A	[1]	0.12%	0.03%	0.15%	Sep. 24, 2001

First American Retail Tax Free Obligations Fund | Class V

Retail Tax Free Obligations Fund

Investment Objective

Retail Tax Free Obligations Fund’s objective is to seek maximum current income exempt from federal income taxes consistent with the preservation of capital and maintenance of liquidity.

Fees and Expenses

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees	First American Retail Tax Free Obligations Fund Class V
Maximum Sales Charge (Load)	none
Maximum Deferred Sales Charge (Load)	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses	First American Retail Tax Free Obligations Fund Class V
Management Fees	0.10%
Distribution and/or Service (12b-1) Fees	none
Other Expenses: Shareholder Servicing Fee	0.10%
Other Expenses: Miscellaneous	0.22%
Total Annual Fund Operating Expenses	0.42%
Less Fee Waivers	(0.12%)	[1]
Net Expenses	0.30%	[1]

Example:

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
First American Retail Tax Free Obligations Fund | Class V | USD ($)	31	123	223	518

Principal Investment Strategies

Under normal market conditions, Retail Tax Free Obligations Fund invests at least 80% of its total assets in high-quality, short-term municipal securities that pay interest that is exempt from federal income tax, including the federal alternative minimum tax. The municipal securities in which the fund invests include variable rate demand notes (VRDNs) and tender option bonds (TOBs), which are floating rate instruments that provide the fund with the option to put or tender the VRDN or TOB back to the issuer at par. VRDNs and TOBs typically have some form of external credit or liquidity support. The fund also may invest in other municipal securities, including commercial paper, municipal notes and other short-term municipal obligations.

Municipal securities are issued by state and local governments, and certain U.S. territorial possessions, to finance public infrastructure projects such as streets and highways, schools, water and sewer systems, hospitals, and airports. They also may be issued to refinance outstanding obligations as well as to obtain funds for general operating expenses and for loans to other public institutions and facilities. There are two principal classifications of municipal securities:

● general obligation bonds, which are backed by the full faith, credit, and taxing power of the issuer; and

● revenue bonds, which are payable only from the revenues generated by a specific project or from another specific revenue source.

Under normal market conditions, up to 20% of the fund’s total assets may be invested in taxable money market securities and municipal securities subject to the alternative minimum tax, although the fund does not currently intend to invest in municipal securities subject to the alternative minimum tax. Under abnormal market conditions, the fund may invest more than 20% of its total assets in such taxable securities, as conditions dictate. This may prevent the fund from achieving its goal of providing maximum current income exempt from federal income taxes.

Because the fund refers to tax-free investments in its name, it has a fundamental investment policy that it will normally invest its assets so that at least 80% of the income that it distributes will be exempt from federal regular income tax, including the federal alternative minimum tax. This policy may not be changed without shareholder approval.

Principal Risks

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. The fund may impose a fee upon sale of your shares or may temporarily suspend your ability to sell shares if the fund’s liquidity falls below required minimums because of market conditions or other factors. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security, or a liquidity provider defaults on its obligation to purchase the security when properly tendered by the fund.

Municipal Security Risk — The value of municipal securities owned by the fund may be adversely affected by future changes in federal income tax laws, including rate reductions or the imposition of a flat tax, and adverse changes in the financial conditions of municipal securities issuers.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Tax Risk — In order to be tax-exempt, municipal securities generally must meet certain regulatory requirements. If a municipal security fails to meet these requirements, the interest received by the fund from its investment in the security and distributed to shareholders may be taxable.

Variable Rate Demand Note (VRDN) and Tender Option Bond (TOB) Risk — Investments in VRDNs and TOBs involve credit risk with respect to the issuer or financial institution providing the fund with the credit and liquidity support for the put or tender option.

Fund Performance

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www. firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated.

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

Average Annual Total Returns		1 Year	5 Years	10 Years	Inception Date
First American Retail Tax Free Obligations Fund | Class V	[1]	0.56%	0.15%	0.27%	Mar. 31, 2006

First American Retail Tax Free Obligations Fund | Class Y

Retail Tax Free Obligations Fund

Investment Objective

Retail Tax Free Obligations Fund’s objective is to seek maximum current income exempt from federal income taxes consistent with the preservation of capital and maintenance of liquidity.

Fees and Expenses

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees	First American Retail Tax Free Obligations Fund Class Y
Maximum Sales Charge (Load)	none
Maximum Deferred Sales Charge (Load)	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses	First American Retail Tax Free Obligations Fund Class Y
Management Fees	0.10%
Distribution and/or Service (12b-1) Fees	none
Other Expenses: Shareholder Servicing Fee	0.25%
Other Expenses: Miscellaneous	0.22%
Total Annual Fund Operating Expenses	0.57%
Less Fee Waivers	(0.12%)	[1]
Net Expenses	0.45%	[1]

Example:

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
First American Retail Tax Free Obligations Fund | Class Y | USD ($)	46	171	306	702

Principal Investment Strategies

Under normal market conditions, Retail Tax Free Obligations Fund invests at least 80% of its total assets in high-quality, short-term municipal securities that pay interest that is exempt from federal income tax, including the federal alternative minimum tax. The municipal securities in which the fund invests include variable rate demand notes (VRDNs) and tender option bonds (TOBs) , which are floating rate instruments that provide the fund with the option to put or tender the VRDN or TOB back to the issuer at par. VRDNs and TOBs typically have some form of external credit or liquidity support. The fund also may invest in other municipal securities, including commercial paper, municipal notes and other short-term municipal obligations.

Municipal securities are issued by state and local governments, and certain U.S. territorial possessions, to finance public infrastructure projects such as streets and highways, schools, water and sewer systems, hospitals, and airports. They also may be issued to refinance outstanding obligations as well as to obtain funds for general operating expenses and for loans to other public institutions and facilities. There are two principal classifications of municipal securities:

● general obligation bonds, which are backed by the full faith, credit, and taxing power of the issuer; and

● revenue bonds, which are payable only from the revenues generated by a specific project or from another specific revenue source.

Under normal market conditions, up to 20% of the fund’s total assets may be invested in taxable money market securities and municipal securities subject to the alternative minimum tax, although the fund does not currently intend to invest in municipal securities subject to the alternative minimum tax. Under abnormal market conditions, the fund may invest more than 20% of its total assets in such taxable securities, as conditions dictate. This may prevent the fund from achieving its goal of providing maximum current income exempt from federal income taxes.

Because the fund refers to tax-free investments in its name, it has a fundamental investment policy that it will normally invest its assets so that at least 80% of the income that it distributes will be exempt from federal regular income tax, including the federal alternative minimum tax. This policy may not be changed without shareholder approval.

Principal Risks

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. The fund may impose a fee upon sale of your shares or may temporarily suspend your ability to sell shares if the fund’s liquidity falls below required minimums because of market conditions or other factors. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security, or a liquidity provider defaults on its obligation to purchase the security when properly tendered by the fund.

Municipal Security Risk — The value of municipal securities owned by the fund may be adversely affected by future changes in federal income tax laws, including rate reductions or the imposition of a flat tax, and adverse changes in the financial conditions of municipal securities issuers.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Tax Risk — In order to be tax-exempt, municipal securities generally must meet certain regulatory requirements. If a municipal security fails to meet these requirements, the interest received by the fund from its investment in the security and distributed to shareholders may be taxable.

Variable Rate Demand Note (VRDN) and Tender Option Bond (TOB) Risk — Investments in VRDNs and TOBs involve credit risk with respect to the issuer or financial institution providing the fund with the credit and liquidity support for the put or tender option.

Fund Performance

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www.firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated.

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

Average Annual Total Returns		1 Year	5 Years	10 Years	Inception Date
First American Retail Tax Free Obligations Fund | Class Y	[1]	0.41%	0.10%	0.22%	Jan. 09, 1995

First American Retail Tax Free Obligations Fund | Class Z

Retail Tax Free Obligations Fund

Investment Objective

Retail Tax Free Obligations Fund’s objective is to seek maximum current income exempt from federal income taxes consistent with the preservation of capital and maintenance of liquidity.

Fees and Expenses

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees	First American Retail Tax Free Obligations Fund Class Z
Maximum Sales Charge (Load)	none
Maximum Deferred Sales Charge (Load)	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses	First American Retail Tax Free Obligations Fund Class Z
Management Fees	0.10%
Distribution and/or Service (12b-1) Fees	none
Other Expenses	0.22%
Total Annual Fund Operating Expenses	0.32%
Less Fee Waivers	(0.12%)	[1]
Net Expenses	0.20%	[1]

Example:

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
First American Retail Tax Free Obligations Fund | Class Z | USD ($)	20	91	168	394

Principal Investment Strategies

Under normal market conditions, Retail Tax Free Obligations Fund invests at least 80% of its total assets in high-quality, short-term municipal securities that pay interest that is exempt from federal income tax, including the federal alternative minimum tax. The municipal securities in which the fund invests include variable rate demand notes (VRDNs) and tender option bonds (TOBs), which are floating rate instruments that provide the fund with the option to put or tender the VRDN or TOB back to the issuer at par. VRDNs and TOBs typically have some form of external credit or liquidity support. The fund also may invest in other municipal securities, including commercial paper, municipal notes and other short-term municipal obligations.

Municipal securities are issued by state and local governments, and certain U.S. territorial possessions, to finance public infrastructure projects such as streets and highways, schools, water and sewer systems, hospitals, and airports. They also may be issued to refinance outstanding obligations as well as to obtain funds for general operating expenses and for loans to other public institutions and facilities. There are two principal classifications of municipal securities:

● general obligation bonds, which are backed by the full faith, credit, and taxing power of the issuer; and

● revenue bonds, which are payable only from the revenues generated by a specific project or from another specific revenue source.

Under normal market conditions, up to 20% of the fund’s total assets may be invested in taxable money market securities and municipal securities subject to the alternative minimum tax, although the fund does not currently intend to invest in municipal securities subject to the alternative minimum tax. Under abnormal market conditions, the fund may invest more than 20% of its total assets in such taxable securities, as conditions dictate. This may prevent the fund from achieving its goal of providing maximum current income exempt from federal income taxes.

Because the fund refers to tax-free investments in its name, it has a fundamental investment policy that it will normally invest its assets so that at least 80% of the income that it distributes will be exempt from federal regular income tax, including the federal alternative minimum tax. This policy may not be changed without shareholder approval.

Principal Risks

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. The fund may impose a fee upon sale of your shares or may temporarily suspend your ability to sell shares if the fund’s liquidity falls below required minimums because of market conditions or other factors. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security, or a liquidity provider defaults on its obligation to purchase the security when properly tendered by the fund.

Municipal Security Risk — The value of municipal securities owned by the fund may be adversely affected by future changes in federal income tax laws, including rate reductions or the imposition of a flat tax, and adverse changes in the financial conditions of municipal securities issuers.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Tax Risk — In order to be tax-exempt, municipal securities generally must meet certain regulatory requirements. If a municipal security fails to meet these requirements, the interest received by the fund from its investment in the security and distributed to shareholders may be taxable.

Variable Rate Demand Note (VRDN) and Tender Option Bond (TOB) Risk — Investments in VRDNs and TOBs involve credit risk with respect to the issuer or financial institution providing the fund with the credit and liquidity support for the put or tender option.

Fund Performance

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www. firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated.

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

Average Annual Total Returns		1 Year	5 Years	10 Years	Inception Date
First American Retail Tax Free Obligations Fund | Class Z	[1]	0.66%	0.18%	0.30%	Dec. 01, 2003

[1] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.75%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[1] Total return for the period 1/1/18 through 9/30/18 was 0.45%.

[1] Prior to October 14, 2016, the fund was named Tax Free Obligations Fund.

[1] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.30%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[1] Total return for the period 1/1/18 through 9/30/18 was 0.79%.

[1] Prior to October 14, 2016, the fund was named Tax Free Obligations Fund.

[1] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.45%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[1] Total return for the period 1/1/18 through 9/30/18 was 0.68%.

[1] Prior to October 14, 2016, the fund was named Tax Free Obligations Fund.

[1] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.20%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019, at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[1] Total return for the period 1/1/18 through 9/30/18 was 0.87%.

[1] Prior to October 14, 2016, the fund was named Tax Free Obligations Fund.

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First American Treasury Obligations Fund | Class A

Treasury Obligations Fund

Investment Objective

Treasury Obligations Fund’s objective is to seek maximum current income consistent with the preservation of capital and maintenance of liquidity.

Fees and Expenses

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees	First American Treasury Obligations Fund Class A USD ($)
Maximum Sales Charge (Load)	none
Maximum Deferred Sales Charge (Load)	none
Annual Low Balance Account Fee (for accounts under $2,500)	$ 15

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses	First American Treasury Obligations Fund Class A
Management Fees	0.10%
Distribution and/or Service (12b-1) Fees	0.25%
Other Expenses: Shareholder Servicing Fee	0.25%
Other Expenses: Miscellaneous	0.19%
Total Annual Fund Operating Expenses	0.79%
Less Fee Waivers	(0.04%)	[1]
Net Expenses	0.75%	[1]

Example:

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
First American Treasury Obligations Fund | Class A | USD ($)	77	248	435	974

Principal Investment Strategies

Under normal market conditions, Treasury Obligations Fund invests exclusively in short-term U.S. Treasury obligations, including repurchase agreements secured by U.S. Treasury obligations. The U.S. Treasury obligations in which the fund invests include U.S. Treasury bonds, notes, and bills. These types of Treasury securities are essentially the same except for differences in interest rates, maturities, and dates of issuance. U.S. Treasury obligations are backed by the full faith and credit of the U.S. government.

Principal Risks

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the collateral and may experience losses if there is any delay in its ability to do so.

Fund Performance

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www.firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated.

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

Average Annual Total Returns	1 Year	5 Years	10 Years	Inception Date
First American Treasury Obligations Fund | Class A	0.21%	0.04%	0.13%	Sep. 24, 2001

First American Treasury Obligations Fund | Class D

Treasury Obligations Fund

Investment Objective

Treasury Obligations Fund’s objective is to seek maximum current income consistent with the preservation of capital and maintenance of liquidity.

Fees and Expenses

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees	First American Treasury Obligations Fund Class D
Maximum Sales Charge (Load)	none
Maximum Deferred Sales Charge (Load)	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses	First American Treasury Obligations Fund Class D
Management Fees	0.10%
Distribution and/or Service (12b-1) Fees	0.15%
Other Expenses: Shareholder Servicing Fee	0.25%
Other Expenses: Miscellaneous	0.14%
Total Annual Fund Operating Expenses	0.64%
Less Fee Waivers	(0.04%)	[1]
Net Expenses	0.60%	[1]

Example:

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
First American Treasury Obligations Fund | Class D | USD ($)	61	201	353	795

Principal Investment Strategies

Under normal market conditions, Treasury Obligations Fund invests exclusively in short-term U.S. Treasury obligations, including repurchase agreements secured by U.S. Treasury obligations. The U.S. Treasury obligations in which the fund invests include U.S. Treasury bonds, notes, and bills. These types of Treasury securities are essentially the same except for differences in interest rates, maturities, and dates of issuance. U.S. Treasury obligations are backed by the full faith and credit of the U.S. government.

Principal Risks

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the collateral and may experience losses if there is any delay in its ability to do so.

Fund Performance

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www. firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated.

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

Average Annual Total Returns	1 Year	5 Years	10 Years	Inception Date
First American Treasury Obligations Fund | Class D	0.33%	0.07%	0.16%	Oct. 04, 1993

First American Treasury Obligations Fund | Class P

Treasury Obligations Fund

Investment Objective

Treasury Obligations Fund’s objective is to seek maximum current income consistent with the preservation of capital and maintenance of liquidity.

Fees and Expenses

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees	First American Treasury Obligations Fund Class P
Maximum Sales Charge (Load)	none
Maximum Deferred Sales Charge (Load)	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses	First American Treasury Obligations Fund Class P
Management Fees	0.10%
Distribution and/or Service (12b-1) Fees	none
Other Expenses	0.12%
Total Annual Fund Operating Expenses	0.22%
Less Fee Waivers	(0.04%)	[1]
Net Expenses	0.18%	[1]

Example:

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
First American Treasury Obligations Fund | Class P | USD ($)	18	67	120	276

Principal Investment Strategies

Under normal market conditions, Treasury Obligations Fund invests exclusively in short-term U.S. Treasury obligations, including repurchase agreements secured by U.S. Treasury obligations. The U.S. Treasury obligations in which the fund invests include U.S. Treasury bonds, notes, and bills. These types of Treasury securities are essentially the same except for differences in interest rates, maturities, and dates of issuance. U.S. Treasury obligations are backed by the full faith and credit of the U.S. government.

Principal Risks

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the collateral and may experience losses if there is any delay in its ability to do so.

Fund Performance

The following bar chart and table provide some indication of the potential risks of investing in the fund by showing changes in the fund’s performance (for Class A shares). The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www.firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s Class A share performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated. The bar chart does not reflect sales loads as none are applicable to Class P shares. Performance information for Class P shares will be provided after such shares have one full calendar year of performance.

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

Average Annual Total Returns	1 Year	5 Years	10 Years	Inception Date
First American Treasury Obligations Fund | Class A	0.21%	0.04%	0.13%	Sep. 24, 2001

First American Treasury Obligations Fund | Class V

Treasury Obligations Fund

Investment Objective

Treasury Obligations Fund’s objective is to seek maximum current income consistent with the preservation of capital and maintenance of liquidity.

Fees and Expenses

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees	First American Treasury Obligations Fund Class V
Maximum Sales Charge (Load)	none
Maximum Deferred Sales Charge (Load)	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses	First American Treasury Obligations Fund Class V
Management Fees	0.10%
Distribution and/or Service (12b-1) Fees	none
Other Expenses: Shareholder Servicing Fee	0.10%
Other Expenses: Miscellaneous	0.14%
Total Annual Fund Operating Expenses	0.34%
Less Fee Waivers	(0.04%)	[1]
Net Expenses	0.30%	[1]

Example:

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
First American Treasury Obligations Fund | Class V | USD ($)	31	105	187	427

Principal Investment Strategies

Under normal market conditions, Treasury Obligations Fund invests exclusively in short-term U.S. Treasury obligations, including repurchase agreements secured by U.S. Treasury obligations. The U.S. Treasury obligations in which the fund invests include U.S. Treasury bonds, notes, and bills. These types of Treasury securities are essentially the same except for differences in interest rates, maturities, and dates of issuance. U.S. Treasury obligations are backed by the full faith and credit of the U.S. government.

Principal Risks

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the collateral and may experience losses if there is any delay in its ability to do so.

Fund Performance

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www.firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated.

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

Average Annual Total Returns	1 Year	5 Years	10 Years	Inception Date
First American Treasury Obligations Fund | Class V	0.63%	0.14%	0.23%	Mar. 31, 2006

First American Treasury Obligations Fund | Class X

Treasury Obligations Fund

Investment Objective

Treasury Obligations Fund’s objective is to seek maximum current income consistent with the preservation of capital and maintenance of liquidity.

Fees and Expenses

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees	First American Treasury Obligations Fund Class X
Maximum Sales Charge (Load)	none
Maximum Deferred Sales Charge (Load)	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses	First American Treasury Obligations Fund Class X
Management Fees	0.10%
Distribution and/or Service (12b-1) Fees	none
Other Expenses	0.14%
Total Annual Fund Operating Expenses	0.24%
Less Fee Waivers	(0.10%)	[1]
Net Expenses	0.14%	[1]

Example:

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
First American Treasury Obligations Fund | Class X | USD ($)	14	67	125	296

Principal Investment Strategies

Under normal market conditions, Treasury Obligations Fund invests exclusively in short-term U.S. Treasury obligations, including repurchase agreements secured by U.S. Treasury obligations. The U.S. Treasury obligations in which the fund invests include U.S. Treasury bonds, notes, and bills. These types of Treasury securities are essentially the same except for differences in interest rates, maturities, and dates of issuance. U.S. Treasury obligations are backed by the full faith and credit of the U.S. government.

Principal Risks

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the collateral and may experience losses if there is any delay in its ability to do so.

Fund Performance

The following bar chart and table provide some indication of the potential risks of investing in the fund by showing changes in the fund’s performance (for Class A shares). The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www.firstamericanfunds.com or by calling 800 677-3863.

The bar chart and table show the fund’s performance for the most recent calendar year.

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

Average Annual Total Returns	1 Year	Since Inception	Inception Date
First American Treasury Obligations Fund | Class X	0.79%	0.98%	Apr. 05, 2016

First American Treasury Obligations Fund | Class Y

Treasury Obligations Fund

Investment Objective

Treasury Obligations Fund’s objective is to seek maximum current income consistent with the preservation of capital and maintenance of liquidity.

Fees and Expenses

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees	First American Treasury Obligations Fund Class Y
Maximum Sales Charge (Load)	none
Maximum Deferred Sales Charge (Load)	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses	First American Treasury Obligations Fund Class Y
Management Fees	0.10%
Distribution and/or Service (12b-1) Fees	none
Other Expenses: Shareholder Servicing Fee	0.25%
Other Expenses: Miscellaneous	0.14%
Total Annual Fund Operating Expenses	0.49%
Less Fee Waivers	(0.04%)	[1]
Net Expenses	0.45%	[1]

Example:

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
First American Treasury Obligations Fund | Class Y | USD ($)	46	153	270	612

Principal Investment Strategies

Under normal market conditions, Treasury Obligations Fund invests exclusively in short-term U.S. Treasury obligations, including repurchase agreements secured by U.S. Treasury obligations. The U.S. Treasury obligations in which the fund invests include U.S. Treasury bonds, notes, and bills. These types of Treasury securities are essentially the same except for differences in interest rates, maturities, and dates of issuance. U.S. Treasury obligations are backed by the full faith and credit of the U.S. government.

Principal Risks

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the collateral and may experience losses if there is any delay in its ability to do so.

Fund Performance

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www.firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated.

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

Average Annual Total Returns	1 Year	5 Years	10 Years	Inception Date
First American Treasury Obligations Fund | Class Y	0.48%	0.10%	0.19%	Jan. 24, 1995

First American Treasury Obligations Fund | Class Z

Treasury Obligations Fund

Investment Objective

Treasury Obligations Fund’s objective is to seek maximum current income consistent with the preservation of capital and maintenance of liquidity.

Fees and Expenses

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees	First American Treasury Obligations Fund Class Z
Maximum Sales Charge (Load)	none
Maximum Deferred Sales Charge (Load)	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses	First American Treasury Obligations Fund Class Z
Management Fees	0.10%
Distribution and/or Service (12b-1) Fees	none
Other Expenses	0.14%
Total Annual Fund Operating Expenses	0.24%
Less Fee Waivers	(0.06%)	[1]
Net Expenses	0.18%	[1]

Example:

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
First American Treasury Obligations Fund | Class Z | USD ($)	18	71	129	300

Principal Investment Strategies

Under normal market conditions, Treasury Obligations Fund invests exclusively in short-term U.S. Treasury obligations, including repurchase agreements secured by U.S. Treasury obligations. The U.S. Treasury obligations in which the fund invests include U.S. Treasury bonds, notes, and bills. These types of Treasury securities are essentially the same except for differences in interest rates, maturities, and dates of issuance. U.S. Treasury obligations are backed by the full faith and credit of the U.S. government.

Principal Risks

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the collateral and may experience losses if there is any delay in its ability to do so.

Fund Performance

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www. firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated.

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

Average Annual Total Returns	1 Year	5 Years	10 Years	Inception Date
First American Treasury Obligations Fund | Class Z	0.75%	0.19%	0.27%	Dec. 01, 2003

[1] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.75%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[1] Total return for the period 1/1/18 through 9/30/18 was 0.74%.

[1] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.60%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[1] Total return for the period 1/1/18 through 9/30/18 was 0.85%.

[1] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.18%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019, at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[1] Total return for the period 1/1/18 through 9/30/18 was 0.74%.

[1] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.30%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[1] Total return for the period 1/1/18 through 9/30/18 was 1.08%.

[1] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.14%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[1] Total return for the period 1/1/18 through 9/30/18 was 1.20%.

[1] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.45%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[1] Total return for the period 1/1/18 through 9/30/18 was 0.97%

[1] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.18%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019, at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[1] Total return for the period 1/1/18 through 9/30/18 was 1.17%.

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First American U.S. Treasury Money Market Fund | Class A

U.S. Treasury Money Market Fund

Investment Objective

U.S. Treasury Money Market Fund’s objective is to seek maximum current income consistent with the preservation of capital and maintenance of liquidity.

Fees and Expenses

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees	First American U.S. Treasury Money Market Fund Class A USD ($)
Maximum Sales Charge (Load)	none
Maximum Deferred Sales Charge (Load)	none
Annual Low Balance Account Fee (for accounts under $2,500)	$ 15

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses	First American U.S. Treasury Money Market Fund Class A
Management Fees	0.10%
Distribution and/or Service (12b-1) Fees	0.25%
Other Expenses: Shareholder Servicing Fee	0.25%
Other Expenses: Miscellaneous	0.22%
Total Annual Fund Operating Expenses	0.82%
Less Fee Waivers	(0.07%)	[1]
Net Expenses	0.75%	[1]

Example:

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
First American U.S. Treasury Money Market Fund | Class A | USD ($)	77	255	448	1,007

Principal Investment Strategies

U.S. Treasury Money Market Fund invests exclusively in direct obligations of the U.S. Treasury and other money market funds that invest exclusively in such obligations. The U.S. Treasury obligations in which the fund invests include U.S. Treasury bonds, notes, and bills. These types of Treasury securities are essentially the same except for differences in interest rates, maturities, and dates of issuance. U.S. Treasury obligations are backed by the full faith and credit of the U.S. government.

Principal Risks

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Additional Expenses — If the fund invests in other money market funds, you will bear both your proportionate share of the expenses in the fund (including management and advisory fees) and, indirectly, the expenses of such other money market fund.

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Fund Performance

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www.firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated.

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

Average Annual Total Returns	1 Year	5 Years	10 Years	Inception Date
First American U.S. Treasury Money Market Fund | Class A	0.17%	0.04%	0.12%	Oct. 25, 2004

First American U.S. Treasury Money Market Fund | Class D

U.S. Treasury Money Market Fund

Investment Objective

U.S. Treasury Money Market Fund’s objective is to seek maximum current income consistent with the preservation of capital and maintenance of liquidity.

Fees and Expenses

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees	First American U.S. Treasury Money Market Fund Class D
Maximum Sales Charge (Load)	none
Maximum Deferred Sales Charge (Load)	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses	First American U.S. Treasury Money Market Fund Class D
Management Fees	0.10%
Distribution and/or Service (12b-1) Fees	0.15%
Other Expenses: Shareholder Servicing Fee	0.25%
Other Expenses: Miscellaneous	0.17%
Total Annual Fund Operating Expenses	0.67%
Less Fee Waivers	(0.07%)	[1]
Net Expenses	0.60%	[1]

Example:

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
First American U.S. Treasury Money Market Fund | Class D | USD ($)	61	207	366	828

Principal Investment Strategies

U.S. Treasury Money Market Fund invests exclusively in direct obligations of the U.S. Treasury and other money market funds that invest exclusively in such obligations. The U.S. Treasury obligations in which the fund invests include U.S. Treasury bonds, notes, and bills. These types of Treasury securities are essentially the same except for differences in interest rates, maturities, and dates of issuance. U.S. Treasury obligations are backed by the full faith and credit of the U.S. government.

Principal Risks

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Additional Expenses — If the fund invests in other money market funds, you will bear both your proportionate share of the expenses in the fund (including management and advisory fees) and, indirectly, the expenses of such other money market fund.

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Fund Performance

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www. firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated.

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

Average Annual Total Returns	1 Year	5 Years	10 Years	Inception Date
First American U.S. Treasury Money Market Fund | Class D	0.29%	0.06%	0.14%	Oct. 25, 2004

First American U.S. Treasury Money Market Fund | Class V

U.S. Treasury Money Market Fund

Investment Objective

U.S. Treasury Money Market Fund’s objective is to seek maximum current income consistent with the preservation of capital and maintenance of liquidity.

Fees and Expenses

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees	First American U.S. Treasury Money Market Fund Class V
Maximum Sales Charge (Load)	none
Maximum Deferred Sales Charge (Load)	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses	First American U.S. Treasury Money Market Fund Class V
Management Fees	0.10%
Distribution and/or Service (12b-1) Fees	none
Other Expenses: Shareholder Servicing Fee	0.10%
Other Expenses: Miscellaneous	0.17%
Total Annual Fund Operating Expenses	0.37%
Less Fee Waivers	(0.07%)	[1]
Net Expenses	0.30%	[1]

Example:

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
First American U.S. Treasury Money Market Fund | Class V | USD ($)	31	112	201	461

Principal Investment Strategies

U.S. Treasury Money Market Fund invests exclusively in direct obligations of the U.S. Treasury and other money market funds that invest exclusively in such obligations. The U.S. Treasury obligations in which the fund invests include U.S. Treasury bonds, notes, and bills. These types of Treasury securities are essentially the same except for differences in interest rates, maturities, and dates of issuance. U.S. Treasury obligations are backed by the full faith and credit of the U.S. government.

Principal Risks

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Additional Expenses — If the fund invests in other money market funds, you will bear both your proportionate share of the expenses in the fund (including management and advisory fees) and, indirectly, the expenses of such other money market fund.

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Fund Performance

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www.firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated.

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

Average Annual Total Returns	1 Year	5 Years	10 Years	Inception Date
First American U.S. Treasury Money Market Fund | Class V	0.58%	0.12%	0.20%	Mar. 31, 2006

First American U.S. Treasury Money Market Fund | Class Y

U.S. Treasury Money Market Fund

Investment Objective

U.S. Treasury Money Market Fund’s objective is to seek maximum current income consistent with the preservation of capital and maintenance of liquidity.

Fees and Expenses

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees	First American U.S. Treasury Money Market Fund Class Y
Maximum Sales Charge (Load)	none
Maximum Deferred Sales Charge (Load)	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses	First American U.S. Treasury Money Market Fund Class Y
Management Fees	0.10%
Distribution and/or Service (12b-1) Fees	none
Other Expenses: Shareholder Servicing Fee	0.25%
Other Expenses: Miscellaneous	0.17%
Total Annual Fund Operating Expenses	0.52%
Less Fee Waivers	(0.07%)	[1]
Net Expenses	0.45%	[1]

Example:

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
First American U.S. Treasury Money Market Fund | Class Y | USD ($)	46	160	284	646

Principal Investment Strategies

U.S. Treasury Money Market Fund invests exclusively in direct obligations of the U.S. Treasury and other money market funds that invest exclusively in such obligations. The U.S. Treasury obligations in which the fund invests include U.S. Treasury bonds, notes, and bills. These types of Treasury securities are essentially the same except for differences in interest rates, maturities, and dates of issuance. U.S. Treasury obligations are backed by the full faith and credit of the U.S. government.

Principal Risks

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Additional Expenses — If the fund invests in other money market funds, you will bear both your proportionate share of the expenses in the fund (including management and advisory fees) and, indirectly, the expenses of such other money market fund.

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Fund Performance

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www.firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated.

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

Average Annual Total Returns	1 Year	5 Years	10 Years	Inception Date
First American U.S. Treasury Money Market Fund | Class Y	0.43%	0.09%	0.17%	Oct. 25, 2004

First American U.S. Treasury Money Market Fund | Class Z

U.S. Treasury Money Market Fund

Investment Objective

U.S. Treasury Money Market Fund’s objective is to seek maximum current income consistent with the preservation of capital and maintenance of liquidity.

Fees and Expenses

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees	First American U.S. Treasury Money Market Fund Class Z
Maximum Sales Charge (Load)	none
Maximum Deferred Sales Charge (Load)	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses	First American U.S. Treasury Money Market Fund Class Z
Management Fees	0.10%
Distribution and/or Service (12b-1) Fees	none
Other Expenses	0.17%
Total Annual Fund Operating Expenses	0.27%
Less Fee Waivers	(0.07%)	[1]
Net Expenses	0.20%	[1]

Example:

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
First American U.S. Treasury Money Market Fund | Class Z | USD ($)	20	80	145	336

Principal Investment Strategies

U.S. Treasury Money Market Fund invests exclusively in direct obligations of the U.S. Treasury and other money market funds that invest exclusively in such obligations. The U.S. Treasury obligations in which the fund invests include U.S. Treasury bonds, notes, and bills. These types of Treasury securities are essentially the same except for differences in interest rates, maturities, and dates of issuance. U.S. Treasury obligations are backed by the full faith and credit of the U.S. government.

Principal Risks

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Additional Expenses — If the fund invests in other money market funds, you will bear both your proportionate share of the expenses in the fund (including management and advisory fees) and, indirectly, the expenses of such other money market fund.

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Fund Performance

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www.firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated.

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

Average Annual Total Returns	1 Year	5 Years	10 Years	Inception Date
First American U.S. Treasury Money Market Fund | Class Z	0.68%	0.16%	0.24%	Oct. 25, 2004

[1] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.75%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[1] Total return for the period 1/1/18 through 9/30/18 was 0.73%.

[1] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.60%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[1] Total return for the period 1/1/18 through 9/30/18 was 0.84%.

[1] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.30%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[1] Total return for the period 1/1/18 through 9/30/18 was 1.07%.

[1] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.45%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[1] Total return for the period 1/1/18 through 9/30/18 was 0.96%.

[1] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.20%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019, at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[1] Total return for the period 1/1/18 through 9/30/18 was 1.14%.

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First American Retail Prime Obligations Fund | Class A

Retail Prime Obligations Fund

Investment Objective

Retail Prime Obligations Fund’s objective is to seek maximum current income to the extent consistent with the preservation of capital and maintenance of liquidity.

Fees and Expenses

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees	First American Retail Prime Obligations Fund Class A USD ($)
Maximum Sales Charge (Load)	none
Maximum Deferred Sales Charge (Load)	none
Annual Low Balance Account Fee (for accounts under $2,500)	$ 15

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses	First American Retail Prime Obligations Fund Class A
Management Fees	0.10%
Distribution and/or Service (12b-1) Fees	0.25%
Other Expenses: Shareholder Servicing Fee	0.25%
Other Expenses: Miscellaneous	0.20%
Total Annual Fund Operating Expenses	0.80%
Less Fee Waivers	(0.05%)	[1]
Net Expenses	0.75%	[1]

Example:

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
First American Retail Prime Obligations Fund | Class A | USD ($)	77	250	439	985

Principal Investment Strategies

Retail Prime Obligations Fund invests in high-quality short-term debt obligations, including:

● commercial paper;

● U.S. dollar-denominated obligations of domestic and foreign banks with total assets of at least $500 million (including fixed and variable rate certificates of deposit, time deposits, and bankers’ acceptances);

● non-convertible corporate debt securities;

● securities issued by the U.S. government or one of its agencies or instrumentalities;

● municipal securities, including variable rate demand notes, commercial paper, and municipal notes and other short-term municipal obligations;

● loan participation interests; and

● repurchase agreements.

The fund concentrates its investments in the banking industry. Therefore, under normal market conditions, the fund will invest more than 25% of its total assets in securities issued by companies in the banking industry. The fund may, however, invest 25% or less of its total assets in this industry as a temporary defensive measure.

The advisor will only purchase (and hold) securities that it determines present minimal credit risk. If a security is no longer determined to present minimal credit risk, the advisor will make every attempt to sell the security, unless it has determined that it would not be in the best interest of the fund to dispose of the security at that time and, where necessary, has obtained the approval of the fund’s board of directors to continue to hold the security.

Principal Risks

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. The fund may impose a fee upon sale of your shares or may temporarily suspend your ability to sell shares if the fund’s liquidity falls below required minimums because of market conditions or other factors. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Banking Industry Risk — An adverse development in the banking industry (domestic or foreign) may affect the value of the fund’s investments more than if the fund were not invested to such a degree in the banking industry. Banks may be particularly susceptible to certain economic factors such as interest rate changes, adverse developments in the real estate market, fiscal, regulatory and monetary policy and general economic cycles.

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Foreign Security Risk — Securities of foreign issuers, even when dollar denominated and publicly traded in the United States, may involve risks not associated with the securities of domestic issuers. Uncertainty surrounding the sovereign debt of several European Union countries, as well as the continued existence of the European Union itself, has disrupted and may continue to disrupt markets in the United States and around the world. If a country changes its currency or leaves the European Union or if the European Union dissolves, the world’s securities markets likely will be significantly disrupted.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security, or a liquidity provider defaults on its obligation to purchase the security when properly tendered by the fund.

Municipal Security Risk — The value of municipal securities owned by the fund may be adversely affected by future changes in federal income tax laws, including rate reductions or the imposition of a flat tax, and adverse changes in the financial conditions of municipal securities issuers.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the securities purchased and may experience losses if the proceeds from the sale of the securities are less than the full repurchase price.

Variable Rate Demand Note (VRDN) Risk — Investments in VRDNs involve credit risk with respect to the issuer or financial institution providing the fund with the credit and liquidity support for the unconditional put option.

Fund Performance

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www.firstamericanfunds.com or by calling 800 677-3863.

The bar chart and table show the fund’s performance for the most recent calendar year.

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

Average Annual Total Returns	1 Year	Inception Date
First American Retail Prime Obligations Fund | Class A	0.46%	Jul. 18, 2016

First American Retail Prime Obligations Fund | Class T

Retail Prime Obligations Fund

Investment Objective

Retail Prime Obligations Fund’s objective is to seek maximum current income to the extent consistent with the preservation of capital and maintenance of liquidity.

Fees and Expenses

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees	First American Retail Prime Obligations Fund Class T
Maximum Sales Charge (Load)	none
Maximum Deferred Sales Charge (Load)	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses	First American Retail Prime Obligations Fund Class T
Management Fees	0.10%
Distribution and/or Service (12b-1) Fees	none
Other Expenses: Shareholder Servicing Fee	0.20%
Other Expenses: Miscellaneous	0.17%
Total Annual Fund Operating Expenses	0.47%
Less Fee Waivers	(0.07%)	[1]
Net Expenses	0.40%	[1]

Example:

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods . The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
First American Retail Prime Obligations Fund | Class T | USD ($)	41	144	256	585

Principal Investment Strategies

Retail Prime Obligations Fund invests in high-quality short-term debt obligations, including:

● commercial paper;

● U.S. dollar-denominated obligations of domestic and foreign banks with total assets of at least $500 million (including fixed and variable rate certificates of deposit, time deposits, and bankers’ acceptances);

● non-convertible corporate debt securities;

● securities issued by the U.S. government or one of its agencies or instrumentalities;

● municipal securities, including variable rate demand notes, commercial paper, and municipal notes and other short-term municipal obligations;

● loan participation interests; and

● repurchase agreements.

The fund concentrates its investments in the banking industry. Therefore, under normal market conditions, the fund will invest more than 25% of its total assets in securities issued by companies in the banking industry. The fund may, however, invest 25% or less of its total assets in this industry as a temporary defensive measure.

The advisor will only purchase (and hold) securities that it determines present minimal credit risk. If a security is no longer determined to present minimal credit risk, the advisor will make every attempt to sell the security, unless it has determined that it would not be in the best interest of the fund to dispose of the security at that time and, where necessary, has obtained the approval of the fund’s board of directors to continue to hold the security.

Principal Risks

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. The fund may impose a fee upon sale of your shares or may temporarily suspend your ability to sell shares if the fund’s liquidity falls below required minimums because of market conditions or other factors. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Banking Industry Risk — An adverse development in the banking industry (domestic or foreign) may affect the value of the fund’s investments more than if the fund was not invested to such a degree in the banking industry. Banks may be particularly susceptible to certain economic factors such as interest rate changes, adverse developments in the real estate market, fiscal, regulatory and monetary policy and general economic cycles.

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Foreign Security Risk — Securities of foreign issuers, even when dollar denominated and publicly traded in the United States, may involve risks not associated with the securities of domestic issuers. Uncertainty surrounding the sovereign debt of several European Union countries, as well as the continued existence of the European Union itself, has disrupted and may continue to disrupt markets in the United States and around the world. If a country changes its currency or leaves the European Union or if the European Union dissolves, the world’s securities markets likely will be significantly disrupted.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security, or a liquidity provider defaults on its obligation to purchase the security when properly tendered by the fund.

Municipal Security Risk — The value of municipal securities owned by the fund may be adversely affected by future changes in federal income tax laws, including rate reductions or the imposition of a flat tax, and adverse changes in the financial conditions of municipal securities issuers.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the securities purchased and may experience losses if the proceeds from the sale of the securities are less than the full repurchase price.

Variable Rate Demand Note (VRDN) Risk — Investments in VRDNs involve credit risk with respect to the issuer or financial institution providing the fund with the credit and liquidity support for the unconditional put option.

Fund Performance

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www.firstamericanfunds.com or by calling 800 677-3863.

The bar chart and table show the fund’s performance for the most recent calendar year.

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

Average Annual Total Returns	1 Year	Inception Date
First American Retail Prime Obligations Fund | Class T	0.81%	Jul. 18, 2016

First American Retail Prime Obligations Fund | Class V

Retail Prime Obligations Fund

Investment Objective

Retail Prime Obligations Fund’s objective is to seek maximum current income to the extent consistent with the preservation of capital and maintenance of liquidity.

Fees and Expenses

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees	First American Retail Prime Obligations Fund Class V
Maximum Sales Charge (Load)	none
Maximum Deferred Sales Charge (Load)	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses	First American Retail Prime Obligations Fund Class V
Management Fees	0.10%
Distribution and/or Service (12b-1) Fees	none
Other Expenses: Shareholder Servicing Fee	0.10%
Other Expenses: Miscellaneous	0.16%
Total Annual Fund Operating Expenses	0.36%
Less Fee Waivers	(0.06%)	[1]
Net Expenses	0.30%	[1]

Example:

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
First American Retail Prime Obligations Fund | Class V | USD ($)	31	110	196	450

Principal Investment Strategies

Retail Prime Obligations Fund invests in high-quality short-term debt obligations, including:

● commercial paper;

● U.S. dollar-denominated obligations of domestic and foreign banks with total assets of at least $500 million (including fixed and variable rate certificates of deposit, time deposits, and bankers’ acceptances);

● non-convertible corporate debt securities;

● securities issued by the U.S. government or one of its agencies or instrumentalities;

● municipal securities, including variable rate demand notes, commercial paper, and municipal notes and other short-term municipal obligations;

● loan participation interests; and

● repurchase agreements.

The fund concentrates its investments in the banking industry. Therefore, under normal market conditions, the fund will invest more than 25% of its total assets in securities issued by companies in the banking industry. The fund may, however, invest 25% or less of its total assets in this industry as a temporary defensive measure.

The advisor will only purchase (and hold) securities that it determines present minimal credit risk. If a security is no longer determined to present minimal credit risk, the advisor will make every attempt to sell the security, unless it has determined that it would not be in the best interest of the fund to dispose of the security at that time and, where necessary, has obtained the approval of the fund’s board of directors to continue to hold the security.

Principal Risks

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. The fund may impose a fee upon sale of your shares or may temporarily suspend your ability to sell shares if the fund’s liquidity falls below required minimums because of market conditions or other factors. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Banking Industry Risk — An adverse development in the banking industry (domestic or foreign) may affect the value of the fund’s investments more than if the fund were not invested to such a degree in the banking industry. Banks may be particularly susceptible to certain economic factors such as interest rate changes, adverse developments in the real estate market, fiscal, regulatory and monetary policy and general economic cycles.

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Foreign Security Risk — Securities of foreign issuers, even when dollar denominated and publicly traded in the United States, may involve risks not associated with the securities of domestic issuers. Uncertainty surrounding the sovereign debt of several European Union countries, as well as the continued existence of the European Union itself, has disrupted and may continue to disrupt markets in the United States and around the world. If a country changes its currency or leaves the European Union or if the European Union dissolves, the world’s securities markets likely will be significantly disrupted.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security, or a liquidity provider defaults on its obligation to purchase the security when properly tendered by the fund.

Municipal Security Risk — The value of municipal securities owned by the fund may be adversely affected by future changes in federal income tax laws, including rate reductions or the imposition of a flat tax, and adverse changes in the financial conditions of municipal securities issuers.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the securities purchased and may experience losses if the proceeds from the sale of the securities are less than the full repurchase price.

Variable Rate Demand Note (VRDN) Risk — Investments in VRDNs involve credit risk with respect to the issuer or financial institution providing the fund with the credit and liquidity support for the unconditional put option.

Fund Performance

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www.firstamericanfunds.com or by calling 800 677-3863.

The bar chart and table show the fund’s performance for the most recent calendar year.

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

Average Annual Total Returns	1 Year	Inception Date
First American Retail Prime Obligations Fund | Class V	0.91%	Jul. 18, 2016

First American Retail Prime Obligations Fund | Class X

Retail Prime Obligations Fund

Investment Objective

Retail Prime Obligations Fund’s objective is to seek maximum current income to the extent consistent with the preservation of capital and maintenance of liquidity.

Fees and Expenses

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees	First American Retail Prime Obligations Fund Class X
Maximum Sales Charge (Load)	none
Maximum Deferred Sales Charge (Load)	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses	First American Retail Prime Obligations Fund Class X
Management Fees	0.10%
Distribution and/or Service (12b-1) Fees	none
Other Expenses	0.16%
Total Annual Fund Operating Expenses	0.26%
Less Fee Waivers	(0.12%)	[1]
Net Expenses	0.14%	[1]

Example:

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
First American Retail Prime Obligations Fund | Class X | USD ($)	14	71	134	319

Principal Investment Strategies

Retail Prime Obligations Fund invests in high-quality short-term debt obligations, including:

● commercial paper;

● U.S. dollar-denominated obligations of domestic and foreign banks with total assets of at least $500 million (including fixed and variable rate certificates of deposit, time deposits, and bankers’ acceptances);

● non-convertible corporate debt securities;

● securities issued by the U.S. government or one of its agencies or instrumentalities;

● municipal securities, including variable rate demand notes, commercial paper, and municipal notes and other short-term municipal obligations;

● loan participation interests; and

● repurchase agreements.

The fund concentrates its investments in the banking industry. Therefore, under normal market conditions, the fund will invest more than 25% of its total assets in securities issued by companies in the banking industry. The fund may, however, invest 25% or less of its total assets in this industry as a temporary defensive measure.

The advisor will only purchase (and hold) securities that it determines present minimal credit risk. If a security is no longer determined to present minimal credit risk, the advisor will make every attempt to sell the security, unless it has determined that it would not be in the best interest of the fund to dispose of the security at that time and, where necessary, has obtained the approval of the fund’s board of directors to continue to hold the security.

Principal Risks

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. The fund may impose a fee upon sale of your shares or may temporarily suspend your ability to sell shares if the fund’s liquidity falls below required minimums because of market conditions or other factors. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Banking Industry Risk — An adverse development in the banking industry (domestic or foreign) may affect the value of the fund’s investments more than if the fund were not invested to such a degree in the banking industry. Banks may be particularly susceptible to certain economic factors such as interest rate changes, adverse developments in the real estate market, fiscal, regulatory and monetary policy and general economic cycles.

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Foreign Security Risk — Securities of foreign issuers, even when dollar denominated and publicly traded in the United States, may involve risks not associated with the securities of domestic issuers. Uncertainty surrounding the sovereign debt of several European Union countries, as well as the continued existence of the European Union itself, has disrupted and may continue to disrupt markets in the United States and around the world. If a country changes its currency or leaves the European Union or if the European Union dissolves, the world’s securities markets likely will be significantly disrupted.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security, or a liquidity provider defaults on its obligation to purchase the security when properly tendered by the fund.

Municipal Security Risk — The value of municipal securities owned by the fund may be adversely affected by future changes in federal income tax laws, including rate reductions or the imposition of a flat tax, and adverse changes in the financial conditions of municipal securities issuers.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the securities purchased and may experience losses if the proceeds from the sale of the securities are less than the full repurchase price.

Variable Rate Demand Note (VRDN) Risk — Investments in VRDNs involve credit risk with respect to the issuer or financial institution providing the fund with the credit and liquidity support for the unconditional put option.

Fund Performance

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www.firstamericanfunds.com or by calling 800 677-3863.

The bar chart and the table show you the fund’s performance for the most recent calendar year.

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

Average Annual Total Returns	1 Year	Since Inception	Inception Date
First American Retail Prime Obligations Fund | Class X	1.07%	1.27%	Sep. 08, 2016

First American Retail Prime Obligations Fund | Class Y

Retail Prime Obligations Fund

Investment Objective

Retail Prime Obligations Fund’s objective is to seek maximum current income to the extent consistent with the preservation of capital and maintenance of liquidity.

Fees and Expenses

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees	First American Retail Prime Obligations Fund Class Y
Maximum Sales Charge (Load)	none
Maximum Deferred Sales Charge (Load)	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses	First American Retail Prime Obligations Fund Class Y
Management Fees	0.10%
Distribution and/or Service (12b-1) Fees	none
Other Expenses: Shareholder Servicing Fee	0.25%
Other Expenses: Miscellaneous	0.16%
Total Annual Fund Operating Expenses	0.51%
Less Fee Waivers	(0.06%)	[1]
Net Expenses	0.45%	[1]

Example:

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
First American Retail Prime Obligations Fund | Class Y | USD ($)	46	158	279	635

Principal Investment Strategies

Retail Prime Obligations Fund invests in high-quality short-term debt obligations, including:

● commercial paper;

● U.S. dollar-denominated obligations of domestic and foreign banks with total assets of at least $500 million (including fixed and variable rate certificates of deposit, time deposits, and bankers’ acceptances);

● non-convertible corporate debt securities;

● securities issued by the U.S. government or one of its agencies or instrumentalities;

● municipal securities, including variable rate demand notes, commercial paper, and municipal notes and other short-term municipal obligations;

● loan participation interests; and

● repurchase agreements.

The fund concentrates its investments in the banking industry. Therefore, under normal market conditions, the fund will invest more than 25% of its total assets in securities issued by companies in the banking industry. The fund may, however, invest 25% or less of its total assets in this industry as a temporary defensive measure.

The advisor will only purchase (and hold) securities that it determines present minimal credit risk. If a security is no longer determined to present minimal credit risk, the advisor will make every attempt to sell the security, unless it has determined that it would not be in the best interest of the fund to dispose of the security at that time and, where necessary, has obtained the approval of the fund’s board of directors to continue to hold the security.

Principal Risks

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. The fund may impose a fee upon sale of your shares or may temporarily suspend your ability to sell shares if the fund’s liquidity falls below required minimums because of market conditions or other factors. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Banking Industry Risk — An adverse development in the banking industry (domestic or foreign) may affect the value of the fund’s investments more than if the fund were not invested to such a degree in the banking industry. Banks may be particularly susceptible to certain economic factors such as interest rate changes, adverse developments in the real estate market, fiscal, regulatory and monetary policy and general economic cycles.

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Foreign Security Risk — Securities of foreign issuers, even when dollar denominated and publicly traded in the United States, may involve risks not associated with the securities of domestic issuers. Uncertainty surrounding the sovereign debt of several European Union countries, as well as the continued existence of the European Union itself, has disrupted and may continue to disrupt markets in the United States and around the world. If a country changes its currency or leaves the European Union or if the European Union dissolves, the world’s securities markets likely will be significantly disrupted.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security, or a liquidity provider defaults on its obligation to purchase the security when properly tendered by the fund.

Municipal Security Risk — The value of municipal securities owned by the fund may be adversely affected by future changes in federal income tax laws, including rate reductions or the imposition of a flat tax, and adverse changes in the financial conditions of municipal securities issuers.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the securities purchased and may experience losses if the proceeds from the sale of the securities are less than the full repurchase price.

Variable Rate Demand Note (VRDN) Risk — Investments in VRDNs involve credit risk with respect to the issuer or financial institution providing the fund with the credit and liquidity support for the unconditional put option.

Fund Performance

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www.firstamericanfunds.com or by calling 800 677-3863.

The bar chart and table show the fund’s performance for the most recent calendar year.

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

Average Annual Total Returns	1 Year	Inception Date
First American Retail Prime Obligations Fund | Class Y	0.76%	Jul. 18, 2016

First American Retail Prime Obligations Fund | Class Z

Retail Prime Obligations Fund

Investment Objective

Retail Prime Obligations Fund’s objective is to seek maximum current income to the extent consistent with the preservation of capital and maintenance of liquidity.

Fees and Expenses

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees	First American Retail Prime Obligations Fund Class Z
Maximum Sales Charge (Load)	none
Maximum Deferred Sales Charge (Load)	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses	First American Retail Prime Obligations Fund Class Z
Management Fees	0.10%
Distribution and/or Service (12b-1) Fees	none
Other Expenses	0.16%
Total Annual Fund Operating Expenses	0.26%
Less Fee Waivers	(0.06%)	[1]
Net Expenses	0.20%	[1]

Example:

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
First American Retail Prime Obligations Fund | Class Z | USD ($)	20	78	140	325

Principal Investment Strategies

Retail Prime Obligations Fund invests in high-quality short-term debt obligations, including:

● commercial paper;

● U.S. dollar-denominated obligations of domestic and foreign banks with total assets of at least $500 million (including fixed and variable rate certificates of deposit, time deposits, and bankers’ acceptances);

● non-convertible corporate debt securities;

● securities issued by the U.S. government or one of its agencies or instrumentalities;

● municipal securities, including variable rate demand notes, commercial paper, and municipal notes and other short-term municipal obligations;

● loan participation interests; and

● repurchase agreements.

The fund concentrates its investments in the banking industry. Therefore, under normal market conditions, the fund will invest more than 25% of its total assets in securities issued by companies in the banking industry. The fund may, however, invest 25% or less of its total assets in this industry as a temporary defensive measure.

The advisor will only purchase (and hold) securities that it determines present minimal credit risk. If a security is no longer determined to present minimal credit risk, the advisor will make every attempt to sell the security, unless it has determined that it would not be in the best interest of the fund to dispose of the security at that time and, where necessary, has obtained the approval of the fund’s board of directors to continue to hold the security.

Principal Risks

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. The fund may impose a fee upon sale of your shares or may temporarily suspend your ability to sell shares if the fund’s liquidity falls below required minimums because of market conditions or other factors. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Banking Industry Risk — An adverse development in the banking industry (domestic or foreign) may affect the value of the fund’s investments more than if the fund were not invested to such a degree in the banking industry. Banks may be particularly susceptible to certain economic factors such as interest rate changes, adverse developments in the real estate market, fiscal, regulatory and monetary policy and general economic cycles.

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Foreign Security Risk — Securities of foreign issuers, even when dollar denominated and publicly traded in the United States, may involve risks not associated with the securities of domestic issuers. Uncertainty surrounding the sovereign debt of several European Union countries, as well as the continued existence of the European Union itself, has disrupted and may continue to disrupt markets in the United States and around the world. If a country changes its currency or leaves the European Union or if the European Union dissolves, the world’s securities markets likely will be significantly disrupted.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security, or a liquidity provider defaults on its obligation to purchase the security when properly tendered by the fund.

Municipal Security Risk — The value of municipal securities owned by the fund may be adversely affected by future changes in federal income tax laws, including rate reductions or the imposition of a flat tax, and adverse changes in the financial conditions of municipal securities issuers.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the securities purchased and may experience losses if the proceeds from the sale of the securities are less than the full repurchase price.

Variable Rate Demand Note (VRDN) Risk — Investments in VRDNs involve credit risk with respect to the issuer or financial institution providing the fund with the credit and liquidity support for the unconditional put option.

Fund Performance

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www.firstamericanfunds.com or by calling 800 677-3863.

The bar chart and table show the fund’s performance for the most recent calendar year.

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

Average Annual Total Returns	1 Year	Inception Date
First American Retail Prime Obligations Fund | Class Z	1.01%	Jul. 18, 2016

[1] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.75%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[1] Total return for the period 1/1/18 through 9/30/18 was 0.94%.

[1] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.40%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[1] Total return for the period 1/1/18 through 9/30/18 was 1.21%.

[1] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.30%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[1] Total return for the period 1/1/18 through 9/30/18 was 1.28%.

[1] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.14%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[1] Total return for the period 1/1/18 through 9/30/18 was 1.40%.

[1] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.45%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[1] Total return for the period 1/1/18 through 9/30/18 was 1.17%.

[1] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.20%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019, at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[1] Total return for the period 1/1/18 through 9/30/18 was 1.36%.

XML

Label

Element

Value

Prospectus [Line Items]

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Document Type

dei_DocumentType

485BPOS

Document Period End Date

dei_DocumentPeriodEndDate

Oct. 30, 2018

Registrant Name

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FIRST AMERICAN FUNDS INC

Central Index Key

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0000356134

Amendment Flag

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false

Trading Symbol

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faf

Document Creation Date

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Oct. 30, 2018

Document Effective Date

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Oct. 30, 2018

Prospectus Date

rr_ProspectusDate

Oct. 30, 2018

First American Government Obligations Fund | Class A

Prospectus [Line Items]

rr_ProspectusLineItems

Risk/Return [Heading]

rr_RiskReturnHeading

Government Obligations Fund

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

Government Obligations Fund’s objective is to seek maximum current income to the extent consistent with the preservation of capital and maintenance of liquidity.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Maximum Sales Charge (Load)

rr_MaximumCumulativeSalesChargeOverOfferingPrice

none

Maximum Deferred Sales Charge (Load)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Annual Low Balance Account Fee (for accounts under $2,500)

rr_ShareholderFeeOther

$ 15

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Management Fees

rr_ManagementFeesOverAssets

0.10%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Other Expenses: Shareholder Servicing Fee

rr_Component1OtherExpensesOverAssets

0.25%

Other Expenses: Miscellaneous

rr_Component2OtherExpensesOverAssets

0.17%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.77%

Less Fee Waivers

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(0.02%)

^[1]

Net Expenses

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0.75%

^[1]

Expense Example [Heading]

rr_ExpenseExampleHeading

Example:

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 77

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

244

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

426

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 952

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Government Obligations Fund invests exclusively in short-term U.S. government securities, including repurchase agreements secured by U.S. government securities. U.S. government securities are bonds or other debt obligations issued or guaranteed as to principal and interest by the U.S. government or one of its agencies or instrumentalities. U.S. Treasury securities and some obligations of U.S. government agencies and instrumentalities are supported by the full faith and credit of the U.S. government. Other U.S. government securities are backed by the right of the issuer to borrow from the U.S. Treasury. Still others are supported only by the credit of the issuer or instrumentality.

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the collateral and may experience losses if there is any delay in its ability to do so.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Fund Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www.firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated.

Bar Chart [Heading]

rr_BarChartHeading

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

Annual Return 2008

rr_AnnualReturn2008

1.75%

^[2]

Annual Return 2009

rr_AnnualReturn2009

0.02%

^[2]

Annual Return 2010

rr_AnnualReturn2010

none

^[2]

Annual Return 2011

rr_AnnualReturn2011

none

^[2]

Annual Return 2012

rr_AnnualReturn2012

0.01%

^[2]

Annual Return 2013

rr_AnnualReturn2013

0.01%

^[2]

Annual Return 2014

rr_AnnualReturn2014

0.01%

^[2]

Annual Return 2015

rr_AnnualReturn2015

0.01%

^[2]

Annual Return 2016

rr_AnnualReturn2016

0.01%

^[2]

Annual Return 2017

rr_AnnualReturn2017

0.21%

^[2]

Year to Date Return, Label

rr_YearToDateReturnLabel

Total return for the period 1/1/18 through 9/30/18 was 0.74%.

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2018

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

0.74%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter:

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Mar. 31, 2008

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

0.71%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter:

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Mar. 31, 2017

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

none

^[3]

Performance Table Heading

rr_PerformanceTableHeading

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

1 Year

rr_AverageAnnualReturnYear01

0.21%

5 Years

rr_AverageAnnualReturnYear05

0.05%

10 Years

rr_AverageAnnualReturnYear10

0.20%

Inception Date

rr_AverageAnnualReturnInceptionDate

Sep. 24, 2001

First American Government Obligations Fund | Class D

Prospectus [Line Items]

rr_ProspectusLineItems

Risk/Return [Heading]

rr_RiskReturnHeading

Government Obligations Fund

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

Government Obligations Fund’s objective is to seek maximum current income to the extent consistent with the preservation of capital and maintenance of liquidity.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Maximum Sales Charge (Load)

rr_MaximumCumulativeSalesChargeOverOfferingPrice

none

Maximum Deferred Sales Charge (Load)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Management Fees

rr_ManagementFeesOverAssets

0.10%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.15%

Other Expenses: Shareholder Servicing Fee

rr_Component1OtherExpensesOverAssets

0.25%

Other Expenses: Miscellaneous

rr_Component2OtherExpensesOverAssets

0.14%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.64%

Less Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.04%)

^[4]

Net Expenses

rr_NetExpensesOverAssets

0.60%

^[4]

Expense Example [Heading]

rr_ExpenseExampleHeading

Example:

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 61

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

201

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

353

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 795

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Government Obligations Fund invests exclusively in short-term U.S. government securities, including repurchase agreements secured by U.S. government securities. U.S. government securities are bonds or other debt obligations issued or guaranteed as to principal and interest by the U.S. government or one of its agencies or instrumentalities. U.S. Treasury securities and some obligations of U.S. government agencies and instrumentalities are supported by the full faith and credit of the U.S. government. Other U.S. government securities are backed by the right of the issuer to borrow from the U.S. Treasury. Still others are supported only by the credit of the issuer or instrumentality.

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the collateral and may experience losses if there is any delay in its ability to do so.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Fund Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www. firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated.

Bar Chart [Heading]

rr_BarChartHeading

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

Annual Return 2008

rr_AnnualReturn2008

1.90%

^[5]

Annual Return 2009

rr_AnnualReturn2009

0.05%

^[5]

Annual Return 2010

rr_AnnualReturn2010

none

^[5]

Annual Return 2011

rr_AnnualReturn2011

none

^[5]

Annual Return 2012

rr_AnnualReturn2012

0.01%

^[5]

Annual Return 2013

rr_AnnualReturn2013

0.01%

^[5]

Annual Return 2014

rr_AnnualReturn2014

0.01%

^[5]

Annual Return 2015

rr_AnnualReturn2015

0.01%

^[5]

Annual Return 2016

rr_AnnualReturn2016

0.01%

^[5]

Annual Return 2017

rr_AnnualReturn2017

0.33%

^[5]

Year to Date Return, Label

rr_YearToDateReturnLabel

Total return for the period 1/1/18 through 9/30/18 was 0.85%.

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2018

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

0.85%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter:

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Mar. 31, 2008

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

0.75%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter:

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2016

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

none

^[6]

Performance Table Heading

rr_PerformanceTableHeading

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

1 Year

rr_AverageAnnualReturnYear01

0.33%

5 Years

rr_AverageAnnualReturnYear05

0.07%

10 Years

rr_AverageAnnualReturnYear10

0.23%

Inception Date

rr_AverageAnnualReturnInceptionDate

Jan. 21, 1995

First American Government Obligations Fund | Class P

Prospectus [Line Items]

rr_ProspectusLineItems

Risk/Return [Heading]

rr_RiskReturnHeading

Government Obligations Fund

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

Government Obligations Fund’s objective is to seek maximum current income to the extent consistent with the preservation of capital and maintenance of liquidity.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Maximum Sales Charge (Load)

rr_MaximumCumulativeSalesChargeOverOfferingPrice

none

Maximum Deferred Sales Charge (Load)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Management Fees

rr_ManagementFeesOverAssets

0.10%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.13%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.23%

Less Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.05%)

^[7]

Net Expenses

rr_NetExpensesOverAssets

0.18%

^[7]

Expense Example [Heading]

rr_ExpenseExampleHeading

Example:

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 18

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

69

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

124

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 288

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Government Obligations Fund invests exclusively in short-term U.S. government securities, including repurchase agreements secured by U.S. government securities. U.S. government securities are bonds or other debt obligations issued or guaranteed as to principal and interest by the U.S. government or one of its agencies or instrumentalities. U.S. Treasury securities and some obligations of U.S. government agencies and instrumentalities are supported by the full faith and credit of the U.S. government. Other U.S. government securities are backed by the right of the issuer to borrow from the U.S. Treasury. Still others are supported only by the credit of the issuer or instrumentality.

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the collateral and may experience losses if there is any delay in its ability to do so.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Fund Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following bar chart and table provide some indication of the potential risks of investing in the fund by showing changes in the fund’s performance (for Class A shares). The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www. firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s Class A share performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated. The bar chart does not reflect sales loads as none are applicable to Class P shares. Performance information for Class P shares will be provided after such shares have one full calendar year of performance.

Bar Chart [Heading]

rr_BarChartHeading

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

Annual Return 2008

rr_AnnualReturn2008

1.75%

^[8]

Annual Return 2009

rr_AnnualReturn2009

0.02%

^[8]

Annual Return 2010

rr_AnnualReturn2010

none

^[8]

Annual Return 2011

rr_AnnualReturn2011

none

^[8]

Annual Return 2012

rr_AnnualReturn2012

0.01%

^[8]

Annual Return 2013

rr_AnnualReturn2013

0.01%

^[8]

Annual Return 2014

rr_AnnualReturn2014

0.01%

^[8]

Annual Return 2015

rr_AnnualReturn2015

0.01%

^[8]

Annual Return 2016

rr_AnnualReturn2016

0.01%

^[8]

Annual Return 2017

rr_AnnualReturn2017

0.21%

^[8]

Year to Date Return, Label

rr_YearToDateReturnLabel

Total return for the period 1/1/18 through 9/30/18 was 0.74%.

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2018

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

0.74%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter:

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Mar. 31, 2008

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

0.71%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter:

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Mar. 31, 2017

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

none

^[9]

Performance Table Heading

rr_PerformanceTableHeading

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

1 Year

rr_AverageAnnualReturnYear01

0.21%

^[10]

5 Years

rr_AverageAnnualReturnYear05

0.05%

^[10]

10 Years

rr_AverageAnnualReturnYear10

0.20%

^[10]

Inception Date

rr_AverageAnnualReturnInceptionDate

Sep. 24, 2001

^[10]

First American Government Obligations Fund | Class U

Prospectus [Line Items]

rr_ProspectusLineItems

Risk/Return [Heading]

rr_RiskReturnHeading

Government Obligations Fund

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

Government Obligations Fund’s objective is to seek maximum current income to the extent consistent with the preservation of capital and maintenance of liquidity.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Maximum Sales Charge (Load)

rr_MaximumCumulativeSalesChargeOverOfferingPrice

none

Maximum Deferred Sales Charge (Load)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Management Fees

rr_ManagementFeesOverAssets

0.10%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.14%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.24%

Less Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.12%)

^[11]

Net Expenses

rr_NetExpensesOverAssets

0.12%

^[11]

Expense Example [Heading]

rr_ExpenseExampleHeading

Example:

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 12

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

65

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

123

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 294

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Government Obligations Fund invests exclusively in short-term U.S. government securities, including repurchase agreements secured by U.S. government securities. U.S. government securities are bonds or other debt obligations issued or guaranteed as to principal and interest by the U.S. government or one of its agencies or instrumentalities. U.S. Treasury securities and some obligations of U.S. government agencies and instrumentalities are supported by the full faith and credit of the U.S. government. Other U.S. government securities are backed by the right of the issuer to borrow from the U.S. Treasury. Still others are supported only by the credit of the issuer or instrumentality.

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the collateral and may experience losses if there is any delay in its ability to do so.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Fund Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following bar chart and table provide some indication of the potential risks of investing in the fund by showing changes in the fund’s performance (for Class A shares). The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www. firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s Class A share performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated. The bar chart does not reflect sales loads as none are applicable to Class U shares . Performance information for Class U shares will be provided after such shares have one full calendar year of performance.

Bar Chart [Heading]

rr_BarChartHeading

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

Annual Return 2008

rr_AnnualReturn2008

1.75%

^[12]

Annual Return 2009

rr_AnnualReturn2009

0.02%

^[12]

Annual Return 2010

rr_AnnualReturn2010

none

^[12]

Annual Return 2011

rr_AnnualReturn2011

none

^[12]

Annual Return 2012

rr_AnnualReturn2012

0.01%

^[12]

Annual Return 2013

rr_AnnualReturn2013

0.01%

^[12]

Annual Return 2014

rr_AnnualReturn2014

0.01%

^[12]

Annual Return 2015

rr_AnnualReturn2015

0.01%

^[12]

Annual Return 2016

rr_AnnualReturn2016

0.01%

^[12]

Annual Return 2017

rr_AnnualReturn2017

0.21%

^[12]

Year to Date Return, Label

rr_YearToDateReturnLabel

Total return for the period 1/1/18 through 9/30/18 was 0.74%.

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2018

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

0.74%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter:

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Mar. 31, 2008

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

0.71%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter:

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Mar. 31, 2017

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

none

^[13]

Performance Table Heading

rr_PerformanceTableHeading

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

1 Year

rr_AverageAnnualReturnYear01

0.21%

^[14]

5 Years

rr_AverageAnnualReturnYear05

0.05%

^[14]

10 Years

rr_AverageAnnualReturnYear10

0.20%

^[14]

Inception Date

rr_AverageAnnualReturnInceptionDate

Sep. 24, 2001

^[14]

First American Government Obligations Fund | Class V

Prospectus [Line Items]

rr_ProspectusLineItems

Risk/Return [Heading]

rr_RiskReturnHeading

Government Obligations Fund

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

Government Obligations Fund’s objective is to seek maximum current income to the extent consistent with the preservation of capital and maintenance of liquidity.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Maximum Sales Charge (Load)

rr_MaximumCumulativeSalesChargeOverOfferingPrice

none

Maximum Deferred Sales Charge (Load)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Management Fees

rr_ManagementFeesOverAssets

0.10%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses: Shareholder Servicing Fee

rr_Component1OtherExpensesOverAssets

0.10%

Other Expenses: Miscellaneous

rr_Component2OtherExpensesOverAssets

0.14%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.34%

Less Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.04%)

^[15]

Net Expenses

rr_NetExpensesOverAssets

0.30%

^[15]

Expense Example [Heading]

rr_ExpenseExampleHeading

Example:

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 31

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

105

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

187

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 427

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Government Obligations Fund invests exclusively in short-term U.S. government securities, including repurchase agreements secured by U.S. government securities. U.S. government securities are bonds or other debt obligations issued or guaranteed as to principal and interest by the U.S. government or one of its agencies or instrumentalities. U.S. Treasury securities and some obligations of U.S. government agencies and instrumentalities are supported by the full faith and credit of the U.S. government. Other U.S. government securities are backed by the right of the issuer to borrow from the U.S. Treasury. Still others are supported only by the credit of the issuer or instrumentality.

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the collateral and may experience losses if there is any delay in its ability to do so.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Fund Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www. firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated.

Bar Chart [Heading]

rr_BarChartHeading

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

Annual Return 2008

rr_AnnualReturn2008

2.21%

^[16]

Annual Return 2009

rr_AnnualReturn2009

0.19%

^[16]

Annual Return 2010

rr_AnnualReturn2010

none

^[16]

Annual Return 2011

rr_AnnualReturn2011

none

^[16]

Annual Return 2012

rr_AnnualReturn2012

0.01%

^[16]

Annual Return 2013

rr_AnnualReturn2013

0.01%

^[16]

Annual Return 2014

rr_AnnualReturn2014

0.01%

^[16]

Annual Return 2015

rr_AnnualReturn2015

0.01%

^[16]

Annual Return 2016

rr_AnnualReturn2016

0.11%

^[16]

Annual Return 2017

rr_AnnualReturn2017

0.63%

^[16]

Year to Date Return, Label

rr_YearToDateReturnLabel

Total return for the period 1/1/18 through 9/30/18 was 1.08%.

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2018

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

1.08%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter:

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Mar. 31, 2008

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

0.82%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter:

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2015

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

none

^[17]

Performance Table Heading

rr_PerformanceTableHeading

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

1 Year

rr_AverageAnnualReturnYear01

0.63%

5 Years

rr_AverageAnnualReturnYear05

0.15%

10 Years

rr_AverageAnnualReturnYear10

0.32%

Inception Date

rr_AverageAnnualReturnInceptionDate

Mar. 31, 2006

First American Government Obligations Fund | Class X

Prospectus [Line Items]

rr_ProspectusLineItems

Risk/Return [Heading]

rr_RiskReturnHeading

Government Obligations Fund

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

Government Obligations Fund’s objective is to seek maximum current income to the extent consistent with the preservation of capital and maintenance of liquidity.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Maximum Sales Charge (Load)

rr_MaximumCumulativeSalesChargeOverOfferingPrice

none

Maximum Deferred Sales Charge (Load)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Management Fees

rr_ManagementFeesOverAssets

0.10%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.14%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.24%

Less Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.10%)

^[18]

Net Expenses

rr_NetExpensesOverAssets

0.14%

^[18]

Expense Example [Heading]

rr_ExpenseExampleHeading

Example:

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 14

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

67

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

125

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 296

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Government Obligations Fund invests exclusively in short-term U.S. government securities, including repurchase agreements secured by U.S. government securities. U.S. government securities are bonds or other debt obligations issued or guaranteed as to principal and interest by the U.S. government or one of its agencies or instrumentalities. U.S. Treasury securities and some obligations of U.S. government agencies and instrumentalities are supported by the full faith and credit of the U.S. government. Other U.S. government securities are backed by the right of the issuer to borrow from the U.S. Treasury. Still others are supported only by the credit of the issuer or instrumentality.

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the collateral and may experience losses if there is any delay in its ability to do so.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Fund Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www. firstamericanfunds.com or by calling 800 677-3863.

The bar chart and the table show the fund’s performance for the most recent calendar year

Bar Chart [Heading]

rr_BarChartHeading

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

Annual Return 2017

rr_AnnualReturn2017

0.79%

^[19]

Year to Date Return, Label

rr_YearToDateReturnLabel

Total return for the period 1/1/18 through 9/30/18 was 1.20%.

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2018

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

1.20%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter:

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Dec. 31, 2017

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

0.25%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter:

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Sep. 30, 2016

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

0.07%

Performance Table Heading

rr_PerformanceTableHeading

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

1 Year

rr_AverageAnnualReturnYear01

0.79%

Since Inception

rr_AverageAnnualReturnSinceInception

1.01%

Inception Date

rr_AverageAnnualReturnInceptionDate

Apr. 05, 2016

First American Government Obligations Fund | Class Y

Prospectus [Line Items]

rr_ProspectusLineItems

Risk/Return [Heading]

rr_RiskReturnHeading

Government Obligations Fund

Objective [Heading]

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Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

Government Obligations Fund’s objective is to seek maximum current income to the extent consistent with the preservation of capital and maintenance of liquidity.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Maximum Sales Charge (Load)

rr_MaximumCumulativeSalesChargeOverOfferingPrice

none

Maximum Deferred Sales Charge (Load)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Management Fees

rr_ManagementFeesOverAssets

0.10%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses: Shareholder Servicing Fee

rr_Component1OtherExpensesOverAssets

0.25%

Other Expenses: Miscellaneous

rr_Component2OtherExpensesOverAssets

0.14%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.49%

Less Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.04%)

^[20]

Net Expenses

rr_NetExpensesOverAssets

0.45%

^[20]

Expense Example [Heading]

rr_ExpenseExampleHeading

Example:

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 46

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

153

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

270

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 612

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Government Obligations Fund invests exclusively in short-term U.S. government securities, including repurchase agreements secured by U.S. government securities. U.S. government securities are bonds or other debt obligations issued or guaranteed as to principal and interest by the U.S. government or one of its agencies or instrumentalities. U.S. Treasury securities and some obligations of U.S. government agencies and instrumentalities are supported by the full faith and credit of the U.S. government. Other U.S. government securities are backed by the right of the issuer to borrow from the U.S. Treasury. Still others are supported only by the credit of the issuer or instrumentality.

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the collateral and may experience losses if there is any delay in its ability to do so.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Fund Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www.firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated.

Bar Chart [Heading]

rr_BarChartHeading

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

Annual Return 2008

rr_AnnualReturn2008

2.06%

^[21]

Annual Return 2009

rr_AnnualReturn2009

0.10%

^[21]

Annual Return 2010

rr_AnnualReturn2010

none

^[21]

Annual Return 2011

rr_AnnualReturn2011

none

^[21]

Annual Return 2012

rr_AnnualReturn2012

0.01%

^[21]

Annual Return 2013

rr_AnnualReturn2013

0.01%

^[21]

Annual Return 2014

rr_AnnualReturn2014

0.01%

^[21]

Annual Return 2015

rr_AnnualReturn2015

0.01%

^[21]

Annual Return 2016

rr_AnnualReturn2016

0.01%

^[21]

Annual Return 2017

rr_AnnualReturn2017

0.48%

^[21]

Year to Date Return, Label

rr_YearToDateReturnLabel

Total return for the period 1/1/18 through 9/30/18 was 0.96%.

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2018

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

0.96%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter:

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Mar. 31, 2008

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

0.78%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter:

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Sep. 30, 2016

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

none

^[22]

Performance Table Heading

rr_PerformanceTableHeading

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

1 Year

rr_AverageAnnualReturnYear01

0.48%

5 Years

rr_AverageAnnualReturnYear05

0.10%

10 Years

rr_AverageAnnualReturnYear10

0.27%

Inception Date

rr_AverageAnnualReturnInceptionDate

Mar. 01, 1990

First American Government Obligations Fund | Class Z

Prospectus [Line Items]

rr_ProspectusLineItems

Risk/Return [Heading]

rr_RiskReturnHeading

Government Obligations Fund

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

Government Obligations Fund’s objective is to seek maximum current income to the extent consistent with the preservation of capital and maintenance of liquidity.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Maximum Sales Charge (Load)

rr_MaximumCumulativeSalesChargeOverOfferingPrice

none

Maximum Deferred Sales Charge (Load)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Management Fees

rr_ManagementFeesOverAssets

0.10%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.14%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.24%

Less Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.06%)

^[23]

Net Expenses

rr_NetExpensesOverAssets

0.18%

^[23]

Expense Example [Heading]

rr_ExpenseExampleHeading

Example:

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 18

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

71

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

129

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 300

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Government Obligations Fund invests exclusively in short-term U.S. government securities, including repurchase agreements secured by U.S. government securities. U.S. government securities are bonds or other debt obligations issued or guaranteed as to principal and interest by the U.S. government or one of its agencies or instrumentalities. U.S. Treasury securities and some obligations of U.S. government agencies and instrumentalities are supported by the full faith and credit of the U.S. government. Other U.S. government securities are backed by the right of the issuer to borrow from the U.S. Treasury. Still others are supported only by the credit of the issuer or instrumentality.

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the collateral and may experience losses if there is any delay in its ability to do so.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Fund Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www.firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated.

Bar Chart [Heading]

rr_BarChartHeading

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

Annual Return 2008

rr_AnnualReturn2008

2.31%

^[24]

Annual Return 2009

rr_AnnualReturn2009

0.28%

^[24]

Annual Return 2010

rr_AnnualReturn2010

0.02%

^[24]

Annual Return 2011

rr_AnnualReturn2011

none

^[24]

Annual Return 2012

rr_AnnualReturn2012

0.01%

^[24]

Annual Return 2013

rr_AnnualReturn2013

0.01%

^[24]

Annual Return 2014

rr_AnnualReturn2014

0.01%

^[24]

Annual Return 2015

rr_AnnualReturn2015

0.01%

^[24]

Annual Return 2016

rr_AnnualReturn2016

0.23%

^[24]

Annual Return 2017

rr_AnnualReturn2017

0.75%

^[24]

Year to Date Return, Label

rr_YearToDateReturnLabel

Total return for the period 1/1/18 through 9/30/18 was 1.17%.

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2018

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

1.17%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter:

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Mar. 31, 2008

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

0.85%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter:

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2015

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

none

^[25]

Performance Table Heading

rr_PerformanceTableHeading

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

1 Year

rr_AverageAnnualReturnYear01

0.75%

5 Years

rr_AverageAnnualReturnYear05

0.20%

10 Years

rr_AverageAnnualReturnYear10

0.36%

Inception Date

rr_AverageAnnualReturnInceptionDate

Dec. 01, 2003

First American Institutional Prime Obligations Fund | Class T

Prospectus [Line Items]

rr_ProspectusLineItems

Risk/Return [Heading]

rr_RiskReturnHeading

Institutional Prime Obligations Fund

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

Institutional Prime Obligations Fund’s objective is to seek maximum current income to the extent consistent with the preservation of capital and maintenance of liquidity.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Maximum Sales Charge (Load)

rr_MaximumCumulativeSalesChargeOverOfferingPrice

none

Maximum Deferred Sales Charge (Load)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Management Fees

rr_ManagementFeesOverAssets

0.10%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses: Shareholder Servicing Fee

rr_Component1OtherExpensesOverAssets

0.20%

Other Expenses: Miscellaneous

rr_Component2OtherExpensesOverAssets

0.20%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.50%

Less Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.10%)

^[26]

Net Expenses

rr_NetExpensesOverAssets

0.40%

^[26]

Expense Example [Heading]

rr_ExpenseExampleHeading

Example:

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 41

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

150

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

270

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 619

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Institutional Prime Obligations Fund invests in high-quality short-term debt obligations, including:

● commercial paper;

● U.S. dollar-denominated obligations of domestic and foreign banks with total assets of at least $500 million (including fixed and variable rate certificates of deposit, time deposits, and bankers’ acceptances);

● non-convertible corporate debt securities;

● securities issued by the U.S. government or one of its agencies or instrumentalities;

● municipal securities, including variable rate demand notes, commercial paper, and municipal notes and other short-term municipal obligations;

● loan participation interests; and

● repurchase agreements.

The fund concentrates its investments in the banking industry. Therefore, under normal market conditions, the fund will invest more than 25% of its total assets in securities issued by companies in the banking industry. The fund may, however, invest 25% or less of its total assets in this industry as a temporary defensive measure.

The advisor will only purchase (and hold) securities that it determines present minimal credit risk. If a security is no longer determined to present minimal credit risk, the advisor will make every attempt to sell the security, unless it has determined that it would not be in the best interest of the fund to dispose of the security at that time and, where necessary, has obtained the approval of the fund’s board of directors to continue to hold the security.

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

You could lose money by investing in the fund. Because the share price of the fund will fluctuate, when you sell your shares they may be worth more or less than what you originally paid for them. The fund may impose a fee upon sale of your shares or may temporarily suspend your ability to sell shares if the fund’s liquidity falls below required minimums because of market conditions or other factors. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Banking Industry Risk — An adverse development in the banking industry (domestic or foreign) may affect the value of the fund’s investments more than if the fund were not invested to such a degree in the banking industry. Banks may be particularly susceptible to certain economic factors such as interest rate changes, adverse developments in the real estate market, fiscal, regulatory and monetary policy and general economic cycles.

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Foreign Security Risk — Securities of foreign issuers, even when dollar denominated and publicly traded in the United States, may involve risks not associated with the securities of domestic issuers. Uncertainty surrounding the sovereign debt of several European Union countries, as well as the continued existence of the European Union itself, has disrupted and may continue to disrupt markets in the United States and around the world. If a country changes its currency or leaves the European Union or if the European Union dissolves, the world’s securities markets likely will be significantly disrupted.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security, or a liquidity provider defaults on its obligation to purchase the security when properly tendered by the fund.

Municipal Security Risk — The value of municipal securities owned by the fund may be adversely affected by future changes in federal income tax laws, including rate reductions or the imposition of a flat tax, and adverse changes in the financial conditions of municipal securities issuers.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the securities purchased and may experience losses if the proceeds from the sale of the securities are less than the full repurchase price.

Variable Rate Demand Note (VRDN) Risk — Investments in VRDNs involve credit risk with respect to the issuer or financial institution providing the fund with the credit and liquidity support for the unconditional put option.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Fund Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www. firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated.

Bar Chart [Heading]

rr_BarChartHeading

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

Annual Return 2008

rr_AnnualReturn2008

2.64%

^[27]

Annual Return 2009

rr_AnnualReturn2009

0.28%

^[27]

Annual Return 2010

rr_AnnualReturn2010

none

^[27]

Annual Return 2011

rr_AnnualReturn2011

none

^[27]

Annual Return 2012

rr_AnnualReturn2012

none

^[27]

Annual Return 2013

rr_AnnualReturn2013

0.01%

^[27]

Annual Return 2014

rr_AnnualReturn2014

0.02%

^[27]

Annual Return 2015

rr_AnnualReturn2015

0.02%

^[27]

Annual Return 2016

rr_AnnualReturn2016

0.10%

^[27]

Annual Return 2017

rr_AnnualReturn2017

0.77%

^[27]

Year to Date Return, Label

rr_YearToDateReturnLabel

Total return for the period 1/1/18 through 9/30/18 was 1.19%.

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2018

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

1.19%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter:

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Mar. 31, 2008

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

0.90%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter:

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2015

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

none

^[28]

Performance Table Heading

rr_PerformanceTableHeading

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

1 Year

rr_AverageAnnualReturnYear01

0.77%

^[29]

5 Years

rr_AverageAnnualReturnYear05

0.18%

^[29]

10 Years

rr_AverageAnnualReturnYear10

0.38%

^[29]

Inception Date

rr_AverageAnnualReturnInceptionDate

Sep. 24, 2001

^[29]

First American Institutional Prime Obligations Fund | Class V

Prospectus [Line Items]

rr_ProspectusLineItems

Risk/Return [Heading]

rr_RiskReturnHeading

Institutional Prime Obligations Fund

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

Institutional Prime Obligations Fund’s objective is to seek maximum current income to the extent consistent with the preservation of capital and maintenance of liquidity.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Maximum Sales Charge (Load)

rr_MaximumCumulativeSalesChargeOverOfferingPrice

none

Maximum Deferred Sales Charge (Load)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Management Fees

rr_ManagementFeesOverAssets

0.10%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses: Shareholder Servicing Fee

rr_Component1OtherExpensesOverAssets

0.10%

Other Expenses: Miscellaneous

rr_Component2OtherExpensesOverAssets

0.20%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.40%

Less Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.10%)

^[30]

Net Expenses

rr_NetExpensesOverAssets

0.30%

^[30]

Expense Example [Heading]

rr_ExpenseExampleHeading

Example:

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 31

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

118

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

214

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 495

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Institutional Prime Obligations Fund invests in high-quality short-term debt obligations, including:

● commercial paper;

● U.S. dollar-denominated obligations of domestic and foreign banks with total assets of at least $500 million (including fixed and variable rate certificates of deposit, time deposits, and bankers’ acceptances);

● non-convertible corporate debt securities;

● securities issued by the U.S. government or one of its agencies or instrumentalities;

● municipal securities, including variable rate demand notes, commercial paper, and municipal notes and other short-term municipal obligations;

● loan participation interests; and

● repurchase agreements.

The fund concentrates its investments in the banking industry. Therefore, under normal market conditions, the fund will invest more than 25% of its total assets in securities issued by companies in the banking industry. The fund may, however, invest 25% or less of its total assets in this industry as a temporary defensive measure.

The advisor will only purchase (and hold) securities that it determines present minimal credit risk. If a security is no longer determined to present minimal credit risk, the advisor will make every attempt to sell the security, unless it has determined that it would not be in the best interest of the fund to dispose of the security at that time and, where necessary, has obtained the approval of the fund’s board of directors to continue to hold the security.

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

You could lose money by investing in the fund. Because the share price of the fund will fluctuate, when you sell your shares they may be worth more or less than what you originally paid for them. The fund may impose a fee upon sale of your shares or may temporarily suspend your ability to sell shares if the fund’s liquidity falls below required minimums because of market conditions or other factors. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Banking Industry Risk — An adverse development in the banking industry (domestic or foreign) may affect the value of the fund’s investments more than if the fund were not invested to such a degree in the banking industry. Banks may be particularly susceptible to certain economic factors such as interest rate changes, adverse developments in the real estate market, fiscal, regulatory and monetary policy and general economic cycles.

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Foreign Security Risk — Securities of foreign issuers, even when dollar denominated and publicly traded in the United States, may involve risks not associated with the securities of domestic issuers. Uncertainty surrounding the sovereign debt of several European Union countries, as well as the continued existence of the European Union itself, has disrupted and may continue to disrupt markets in the United States and around the world. If a country changes its currency or leaves the European Union or if the European Union dissolves, the world’s securities markets likely will be significantly disrupted.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security, or a liquidity provider defaults on its obligation to purchase the security when properly tendered by the fund.

Municipal Security Risk — The value of municipal securities owned by the fund may be adversely affected by future changes in federal income tax laws, including rate reductions or the imposition of a flat tax, and adverse changes in the financial conditions of municipal securities issuers.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the securities purchased and may experience losses if the proceeds from the sale of the securities are less than the full repurchase price.

Variable Rate Demand Note (VRDN) Risk — Investments in VRDNs involve credit risk with respect to the issuer or financial institution providing the fund with the credit and liquidity support for the unconditional put option.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Fund Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www.firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated.

Bar Chart [Heading]

rr_BarChartHeading

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

Annual Return 2008

rr_AnnualReturn2008

2.75%

^[31]

Annual Return 2009

rr_AnnualReturn2009

0.36%

^[31]

Annual Return 2010

rr_AnnualReturn2010

0.01%

^[31]

Annual Return 2011

rr_AnnualReturn2011

none

^[31]

Annual Return 2012

rr_AnnualReturn2012

none

^[31]

Annual Return 2013

rr_AnnualReturn2013

0.01%

^[31]

Annual Return 2014

rr_AnnualReturn2014

0.02%

^[31]

Annual Return 2015

rr_AnnualReturn2015

0.02%

^[31]

Annual Return 2016

rr_AnnualReturn2016

0.19%

^[31]

Annual Return 2017

rr_AnnualReturn2017

0.86%

^[31]

Year to Date Return, Label

rr_YearToDateReturnLabel

Total return for the period 1/1/18 through 9/30/18 was 1.27%.

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2018

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

1.27%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter:

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Mar. 31, 2008

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

0.93%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter:

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Sep. 30, 2015

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

none

^[32]

Performance Table Heading

rr_PerformanceTableHeading

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

1 Year

rr_AverageAnnualReturnYear01

0.86%

^[33]

5 Years

rr_AverageAnnualReturnYear05

0.22%

^[33]

10 Years

rr_AverageAnnualReturnYear10

0.42%

^[33]

Inception Date

rr_AverageAnnualReturnInceptionDate

Mar. 31, 2006

^[33]

First American Institutional Prime Obligations Fund | Class X

Prospectus [Line Items]

rr_ProspectusLineItems

Risk/Return [Heading]

rr_RiskReturnHeading

Institutional Prime Obligations Fund

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

Institutional Prime Obligations Fund’s objective is to seek maximum current income to the extent consistent with the preservation of capital and maintenance of liquidity.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Maximum Sales Charge (Load)

rr_MaximumCumulativeSalesChargeOverOfferingPrice

none

Maximum Deferred Sales Charge (Load)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Management Fees

rr_ManagementFeesOverAssets

0.10%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.18%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.28%

Less Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.14%)

^[34]

Net Expenses

rr_NetExpensesOverAssets

0.14%

^[34]

Expense Example [Heading]

rr_ExpenseExampleHeading

Example:

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 14

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

76

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

143

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 342

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Institutional Prime Obligations Fund invests in high-quality short-term debt obligations, including:

● commercial paper;

● U.S. dollar-denominated obligations of domestic and foreign banks with total assets of at least $500 million (including fixed and variable rate certificates of deposit, time deposits, and bankers’ acceptances);

● non-convertible corporate debt securities;

● securities issued by the U.S. government or one of its agencies or instrumentalities;

● municipal securities, including variable rate demand notes, commercial paper, and municipal notes and other short-term municipal obligations;

● loan participation interests; and

● repurchase agreements.

The fund concentrates its investments in the banking industry. Therefore, under normal market conditions, the fund will invest more than 25% of its total assets in securities issued by companies in the banking industry. The fund may, however, invest 25% or less of its total assets in this industry as a temporary defensive measure.

The advisor will only purchase (and hold) securities that it determines present minimal credit risk. If a security is no longer determined to present minimal credit risk, the advisor will make every attempt to sell the security, unless it has determined that it would not be in the best interest of the fund to dispose of the security at that time and, where necessary, has obtained the approval of the fund’s board of directors to continue to hold the security.

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

You could lose money by investing in the fund. Because the share price of the fund will fluctuate, when you sell your shares they may be worth more or less than what you originally paid for them. The fund may impose a fee upon sale of your shares or may temporarily suspend your ability to sell shares if the fund’s liquidity falls below required minimums because of market conditions or other factors. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Banking Industry Risk — An adverse development in the banking industry (domestic or foreign) may affect the value of the fund’s investments more than if the fund were not invested to such a degree in the banking industry. Banks may be particularly susceptible to certain economic factors such as interest rate changes, adverse developments in the real estate market, fiscal, regulatory and monetary policy and general economic cycles.

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Foreign Security Risk — Securities of foreign issuers, even when dollar denominated and publicly traded in the United States, may involve risks not associated with the securities of domestic issuers. Uncertainty surrounding the sovereign debt of several European Union countries, as well as the continued existence of the European Union itself, has disrupted and may continue to disrupt markets in the United States and around the world. If a country changes its currency or leaves the European Union or if the European Union dissolves, the world’s securities markets likely will be significantly disrupted.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security, or a liquidity provider defaults on its obligation to purchase the security when properly tendered by the fund.

Municipal Security Risk — The value of municipal securities owned by the fund may be adversely affected by future changes in federal income tax laws, including rate reductions or the imposition of a flat tax, and adverse changes in the financial conditions of municipal securities issuers.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the securities purchased and may experience losses if the proceeds from the sale of the securities are less than the full repurchase price.

Variable Rate Demand Note (VRDN) Risk — Investments in VRDNs involve credit risk with respect to the issuer or financial institution providing the fund with the credit and liquidity support for the unconditional put option.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Fund Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www.firstamericanfunds.com or by calling 800 677-3863.

The bar chart and table show the fund’s performance for the most recent calendar year.

Bar Chart [Heading]

rr_BarChartHeading

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

Annual Return 2017

rr_AnnualReturn2017

1.03%

^[35]

Year to Date Return, Label

rr_YearToDateReturnLabel

Total return for the period 1/1/18 through 9/30/18 was 1.39%.

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2018

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

1.39%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter:

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Dec. 31, 2017

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

0.30%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter:

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Sep. 30, 2016

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

0.08%

Performance Table Heading

rr_PerformanceTableHeading

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

1 Year

rr_AverageAnnualReturnYear01

1.03%

Since Inception

rr_AverageAnnualReturnSinceInception

1.30%

Inception Date

rr_AverageAnnualReturnInceptionDate

Apr. 05, 2016

First American Institutional Prime Obligations Fund | Class Y

Prospectus [Line Items]

rr_ProspectusLineItems

Risk/Return [Heading]

rr_RiskReturnHeading

Institutional Prime Obligations Fund

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

Institutional Prime Obligations Fund’s objective is to seek maximum current income to the extent consistent with the preservation of capital and maintenance of liquidity.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Maximum Sales Charge (Load)

rr_MaximumCumulativeSalesChargeOverOfferingPrice

none

Maximum Deferred Sales Charge (Load)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Management Fees

rr_ManagementFeesOverAssets

0.10%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses: Shareholder Servicing Fee

rr_Component1OtherExpensesOverAssets

0.25%

Other Expenses: Miscellaneous

rr_Component2OtherExpensesOverAssets

0.20%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.55%

Less Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.10%)

^[36]

Net Expenses

rr_NetExpensesOverAssets

0.45%

^[36]

Expense Example [Heading]

rr_ExpenseExampleHeading

Example:

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 46

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

166

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

297

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 680

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Institutional Prime Obligations Fund invests in high-quality short-term debt obligations, including:

● commercial paper;

● U.S. dollar-denominated obligations of domestic and foreign banks with total assets of at least $500 million (including fixed and variable rate certificates of deposit, time deposits, and bankers’ acceptances);

● non-convertible corporate debt securities;

● securities issued by the U.S. government or one of its agencies or instrumentalities;

● municipal securities, including variable rate demand notes, commercial paper, and municipal notes and other short-term municipal obligations;

● loan participation interests; and

● repurchase agreements.

The fund concentrates its investments in the banking industry. Therefore, under normal market conditions, the fund will invest more than 25% of its total assets in securities issued by companies in the banking industry. The fund may, however, invest 25% or less of its total assets in this industry as a temporary defensive measure.

The advisor will only purchase (and hold) securities that it determines present minimal credit risk. If a security is no longer determined to present minimal credit risk, the advisor will make every attempt to sell the security, unless it has determined that it would not be in the best interest of the fund to dispose of the security at that time and, where necessary, has obtained the approval of the fund’s board of directors to continue to hold the security.

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

You could lose money by investing in the fund. Because the share price of the fund will fluctuate, when you sell your shares they may be worth more or less than what you originally paid for them. The fund may impose a fee upon sale of your shares or may temporarily suspend your ability to sell shares if the fund’s liquidity falls below required minimums because of market conditions or other factors. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Banking Industry Risk — An adverse development in the banking industry (domestic or foreign) may affect the value of the fund’s investments more than if the fund were not invested to such a degree in the banking industry. Banks may be particularly susceptible to certain economic factors such as interest rate changes, adverse developments in the real estate market, fiscal, regulatory and monetary policy and general economic cycles.

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Foreign Security Risk — Securities of foreign issuers, even when dollar denominated and publicly traded in the United States, may involve risks not associated with the securities of domestic issuers. Uncertainty surrounding the sovereign debt of several European Union countries, as well as the continued existence of the European Union itself, has disrupted and may continue to disrupt markets in the United States and around the world. If a country changes its currency or leaves the European Union or if the European Union dissolves, the world’s securities markets likely will be significantly disrupted.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security, or a liquidity provider defaults on its obligation to purchase the security when properly tendered by the fund.

Municipal Security Risk — The value of municipal securities owned by the fund may be adversely affected by future changes in federal income tax laws, including rate reductions or the imposition of a flat tax, and adverse changes in the financial conditions of municipal securities issuers.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the securities purchased and may experience losses if the proceeds from the sale of the securities are less than the full repurchase price.

Variable Rate Demand Note (VRDN) Risk — Investments in VRDNs involve credit risk with respect to the issuer or financial institution providing the fund with the credit and liquidity support for the unconditional put option.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Fund Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www.firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated.

Bar Chart [Heading]

rr_BarChartHeading

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

Annual Return 2008

rr_AnnualReturn2008

2.56%

^[37]

Annual Return 2009

rr_AnnualReturn2009

0.25%

^[37]

Annual Return 2010

rr_AnnualReturn2010

none

^[37]

Annual Return 2011

rr_AnnualReturn2011

none

^[37]

Annual Return 2012

rr_AnnualReturn2012

none

^[37]

Annual Return 2013

rr_AnnualReturn2013

0.01%

^[37]

Annual Return 2014

rr_AnnualReturn2014

0.02%

^[37]

Annual Return 2015

rr_AnnualReturn2015

0.02%

^[37]

Annual Return 2016

rr_AnnualReturn2016

0.06%

^[37]

Annual Return 2017

rr_AnnualReturn2017

0.72%

^[37]

Year to Date Return, Label

rr_YearToDateReturnLabel

Total return for the period 1/1/18 through 9/30/18 was 1.15%.

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2018

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

1.15%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter:

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Mar. 31, 2008

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

0.88%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter:

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2015

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

none

^[38]

Performance Table Heading

rr_PerformanceTableHeading

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

1 Year

rr_AverageAnnualReturnYear01

0.72%

^[39]

5 Years

rr_AverageAnnualReturnYear05

0.16%

^[39]

10 Years

rr_AverageAnnualReturnYear10

0.36%

^[39]

Inception Date

rr_AverageAnnualReturnInceptionDate

Mar. 01, 1990

^[39]

First American Institutional Prime Obligations Fund | Class Z

Prospectus [Line Items]

rr_ProspectusLineItems

Risk/Return [Heading]

rr_RiskReturnHeading

Institutional Prime Obligations Fund

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

Institutional Prime Obligations Fund’s objective is to seek maximum current income to the extent consistent with the preservation of capital and maintenance of liquidity.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Maximum Sales Charge (Load)

rr_MaximumCumulativeSalesChargeOverOfferingPrice

none

Maximum Deferred Sales Charge (Load)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Management Fees

rr_ManagementFeesOverAssets

0.10%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.20%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.30%

Less Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.10%)

^[40]

Net Expenses

rr_NetExpensesOverAssets

0.20%

^[40]

Expense Example [Heading]

rr_ExpenseExampleHeading

Example:

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 20

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

86

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

159

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 371

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Institutional Prime Obligations Fund invests in high-quality short-term debt obligations, including:

● commercial paper;

● U.S. dollar-denominated obligations of domestic and foreign banks with total assets of at least $500 million (including fixed and variable rate certificates of deposit, time deposits, and bankers’ acceptances);

● non-convertible corporate debt securities;

● securities issued by the U.S. government or one of its agencies or instrumentalities;

● municipal securities, including variable rate demand notes, commercial paper, and municipal notes and other short-term municipal obligations;

● loan participation interests; and

● repurchase agreements.

The fund concentrates its investments in the banking industry. Therefore, under normal market conditions, the fund will invest more than 25% of its total assets in securities issued by companies in the banking industry. The fund may, however, invest 25% or less of its total assets in this industry as a temporary defensive measure.

The advisor will only purchase (and hold) securities that it determines present minimal credit risk. If a security is no longer determined to present minimal credit risk, the advisor will make every attempt to sell the security, unless it has determined that it would not be in the best interest of the fund to dispose of the security at that time and, where necessary, has obtained the approval of the fund’s board of directors to continue to hold the security.

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

You could lose money by investing in the fund. Because the share price of the fund will fluctuate, when you sell your shares they may be worth more or less than what you originally paid for them. The fund may impose a fee upon sale of your shares or may temporarily suspend your ability to sell shares if the fund’s liquidity falls below required minimums because of market conditions or other factors. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Banking Industry Risk — An adverse development in the banking industry (domestic or foreign) may affect the value of the fund’s investments more than if the fund were not invested to such a degree in the banking industry. Banks may be particularly susceptible to certain economic factors such as interest rate changes, adverse developments in the real estate market, fiscal, regulatory and monetary policy and general economic cycles.

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Foreign Security Risk — Securities of foreign issuers, even when dollar denominated and publicly traded in the United States, may involve risks not associated with the securities of domestic issuers. Uncertainty surrounding the sovereign debt of several European Union countries, as well as the continued existence of the European Union itself, has disrupted and may continue to disrupt markets in the United States and around the world. If a country changes its currency or leaves the European Union or if the European Union dissolves, the world’s securities markets likely will be significantly disrupted.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security, or a liquidity provider defaults on its obligation to purchase the security when properly tendered by the fund.

Municipal Security Risk — The value of municipal securities owned by the fund may be adversely affected by future changes in federal income tax laws, including rate reductions or the imposition of a flat tax, and adverse changes in the financial conditions of municipal securities issuers.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the securities purchased and may experience losses if the proceeds from the sale of the securities are less than the full repurchase price.

Variable Rate Demand Note (VRDN) Risk — Investments in VRDNs involve credit risk with respect to the issuer or financial institution providing the fund with the credit and liquidity support for the unconditional put option.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Fund Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www.firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated.

Bar Chart [Heading]

rr_BarChartHeading

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

Annual Return 2008

rr_AnnualReturn2008

2.85%

^[41]

Annual Return 2009

rr_AnnualReturn2009

0.46%

^[41]

Annual Return 2010

rr_AnnualReturn2010

0.09%

^[41]

Annual Return 2011

rr_AnnualReturn2011

0.05%

^[41]

Annual Return 2012

rr_AnnualReturn2012

0.07%

^[41]

Annual Return 2013

rr_AnnualReturn2013

0.01%

^[41]

Annual Return 2014

rr_AnnualReturn2014

0.02%

^[41]

Annual Return 2015

rr_AnnualReturn2015

0.04%

^[41]

Annual Return 2016

rr_AnnualReturn2016

0.29%

^[41]

Annual Return 2017

rr_AnnualReturn2017

0.98%

^[41]

Year to Date Return, Label

rr_YearToDateReturnLabel

Total return for the period 1/1/18 through 9/30/18 was 1.38%.

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2018

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

1.38%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter:

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Mar. 31, 2008

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

0.95%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter:

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Mar. 31, 2015

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

none

^[42]

Performance Table Heading

rr_PerformanceTableHeading

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

1 Year

rr_AverageAnnualReturnYear01

0.98%

^[43]

5 Years

rr_AverageAnnualReturnYear05

0.27%

^[43]

10 Years

rr_AverageAnnualReturnYear10

0.48%

^[43]

Inception Date

rr_AverageAnnualReturnInceptionDate

Aug. 01, 2003

^[43]

First American Retail Tax Free Obligations Fund | Class A

Prospectus [Line Items]

rr_ProspectusLineItems

Risk/Return [Heading]

rr_RiskReturnHeading

Retail Tax Free Obligations Fund

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

Retail Tax Free Obligations Fund’s objective is to seek maximum current income exempt from federal income taxes consistent with the preservation of capital and maintenance of liquidity.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Maximum Sales Charge (Load)

rr_MaximumCumulativeSalesChargeOverOfferingPrice

none

Maximum Deferred Sales Charge (Load)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Annual Low Balance Account Fee (for accounts under $2,500)

rr_ShareholderFeeOther

$ 15

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Management Fees

rr_ManagementFeesOverAssets

0.10%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Other Expenses: Shareholder Servicing Fee

rr_Component1OtherExpensesOverAssets

0.25%

Other Expenses: Miscellaneous

rr_Component2OtherExpensesOverAssets

0.27%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.87%

Less Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.12%)

^[44]

Net Expenses

rr_NetExpensesOverAssets

0.75%

^[44]

Expense Example [Heading]

rr_ExpenseExampleHeading

Example:

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 77

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

266

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

470

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 1,061

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Under normal market conditions, Retail Tax Free Obligations Fund invests at least 80% of its total assets in high-quality, short-term municipal securities that pay interest that is exempt from federal income tax, including the federal alternative minimum tax. The municipal securities in which the fund invests include variable rate demand notes (VRDNs) and tender option bonds (TOBs), which are floating rate instruments that provide the fund with the option to put or tender the VRDN or TOB back to the issuer at par. VRDNs and TOBs typically have some form of external credit or liquidity support. The fund also may invest in other municipal securities, including commercial paper, municipal notes and other short-term municipal obligations.

Municipal securities are issued by state and local governments, and certain U.S. territorial possessions, to finance public infrastructure projects such as streets and highways, schools, water and sewer systems, hospitals, and airports. They also may be issued to refinance outstanding obligations as well as to obtain funds for general operating expenses and for loans to other public institutions and facilities. There are two principal classifications of municipal securities:

● general obligation bonds, which are backed by the full faith, credit, and taxing power of the issuer; and

● revenue bonds, which are payable only from the revenues generated by a specific project or from another specific revenue source.

Under normal market conditions, up to 20% of the fund’s total assets may be invested in taxable money market securities and municipal securities subject to the alternative minimum tax, although the fund does not currently intend to invest in municipal securities subject to the alternative minimum tax. Under abnormal market conditions, the fund may invest more than 20% of its total assets in such taxable securities, as conditions dictate. This may prevent the fund from achieving its goal of providing maximum current income exempt from federal income taxes.

Because the fund refers to tax-free investments in its name, it has a fundamental investment policy that it will normally invest its assets so that at least 80% of the income that it distributes will be exempt from federal regular income tax, including the federal alternative minimum tax. This policy may not be changed without shareholder approval.

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. The fund may impose a fee upon sale of your shares or may temporarily suspend your ability to sell shares if the fund’s liquidity falls below required minimums because of market conditions or other factors. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security, or a liquidity provider defaults on its obligation to purchase the security when properly tendered by the fund.

Municipal Security Risk — The value of municipal securities owned by the fund may be adversely affected by future changes in federal income tax laws, including rate reductions or the imposition of a flat tax, and adverse changes in the financial conditions of municipal securities issuers.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Tax Risk — In order to be tax-exempt, municipal securities generally must meet certain regulatory requirements. If a municipal security fails to meet these requirements, the interest received by the fund from its investment in the security and distributed to shareholders may be taxable.

Variable Rate Demand Note (VRDN) and Tender Option Bond (TOB) Risk — Investments in VRDNs and TOBs involve credit risk with respect to the issuer or financial institution providing the fund with the credit and liquidity support for the put or tender option.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Fund Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www.firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated.

Bar Chart [Heading]

rr_BarChartHeading

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

Annual Return 2008

rr_AnnualReturn2008

1.39%

^[45]

Annual Return 2009

rr_AnnualReturn2009

none

^[45]

Annual Return 2010

rr_AnnualReturn2010

none

^[45]

Annual Return 2011

rr_AnnualReturn2011

none

^[45]

Annual Return 2012

rr_AnnualReturn2012

none

^[45]

Annual Return 2013

rr_AnnualReturn2013

none

^[45]

Annual Return 2014

rr_AnnualReturn2014

none

^[45]

Annual Return 2015

rr_AnnualReturn2015

none

^[45]

Annual Return 2016

rr_AnnualReturn2016

0.01%

^[45]

Annual Return 2017

rr_AnnualReturn2017

0.12%

^[45]

Year to Date Return, Label

rr_YearToDateReturnLabel

Total return for the period 1/1/18 through 9/30/18 was 0.45%.

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2017

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

0.45%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter:

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Mar. 31, 2008

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

0.45%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter:

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Mar. 31, 2017

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

none

^[46]

Performance Table Heading

rr_PerformanceTableHeading

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

1 Year

rr_AverageAnnualReturnYear01

0.12%

^[47]

5 Years

rr_AverageAnnualReturnYear05

0.03%

^[47]

10 Years

rr_AverageAnnualReturnYear10

0.15%

^[47]

Inception Date

rr_AverageAnnualReturnInceptionDate

Sep. 24, 2001

^[47]

First American Retail Tax Free Obligations Fund | Class V

Prospectus [Line Items]

rr_ProspectusLineItems

Risk/Return [Heading]

rr_RiskReturnHeading

Retail Tax Free Obligations Fund

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

Retail Tax Free Obligations Fund’s objective is to seek maximum current income exempt from federal income taxes consistent with the preservation of capital and maintenance of liquidity.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Maximum Sales Charge (Load)

rr_MaximumCumulativeSalesChargeOverOfferingPrice

none

Maximum Deferred Sales Charge (Load)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Management Fees

rr_ManagementFeesOverAssets

0.10%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses: Shareholder Servicing Fee

rr_Component1OtherExpensesOverAssets

0.10%

Other Expenses: Miscellaneous

rr_Component2OtherExpensesOverAssets

0.22%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.42%

Less Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.12%)

^[48]

Net Expenses

rr_NetExpensesOverAssets

0.30%

^[48]

Expense Example [Heading]

rr_ExpenseExampleHeading

Example:

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 31

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

123

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

223

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 518

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Under normal market conditions, Retail Tax Free Obligations Fund invests at least 80% of its total assets in high-quality, short-term municipal securities that pay interest that is exempt from federal income tax, including the federal alternative minimum tax. The municipal securities in which the fund invests include variable rate demand notes (VRDNs) and tender option bonds (TOBs), which are floating rate instruments that provide the fund with the option to put or tender the VRDN or TOB back to the issuer at par. VRDNs and TOBs typically have some form of external credit or liquidity support. The fund also may invest in other municipal securities, including commercial paper, municipal notes and other short-term municipal obligations.

Municipal securities are issued by state and local governments, and certain U.S. territorial possessions, to finance public infrastructure projects such as streets and highways, schools, water and sewer systems, hospitals, and airports. They also may be issued to refinance outstanding obligations as well as to obtain funds for general operating expenses and for loans to other public institutions and facilities. There are two principal classifications of municipal securities:

● general obligation bonds, which are backed by the full faith, credit, and taxing power of the issuer; and

● revenue bonds, which are payable only from the revenues generated by a specific project or from another specific revenue source.

Under normal market conditions, up to 20% of the fund’s total assets may be invested in taxable money market securities and municipal securities subject to the alternative minimum tax, although the fund does not currently intend to invest in municipal securities subject to the alternative minimum tax. Under abnormal market conditions, the fund may invest more than 20% of its total assets in such taxable securities, as conditions dictate. This may prevent the fund from achieving its goal of providing maximum current income exempt from federal income taxes.

Because the fund refers to tax-free investments in its name, it has a fundamental investment policy that it will normally invest its assets so that at least 80% of the income that it distributes will be exempt from federal regular income tax, including the federal alternative minimum tax. This policy may not be changed without shareholder approval.

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. The fund may impose a fee upon sale of your shares or may temporarily suspend your ability to sell shares if the fund’s liquidity falls below required minimums because of market conditions or other factors. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security, or a liquidity provider defaults on its obligation to purchase the security when properly tendered by the fund.

Municipal Security Risk — The value of municipal securities owned by the fund may be adversely affected by future changes in federal income tax laws, including rate reductions or the imposition of a flat tax, and adverse changes in the financial conditions of municipal securities issuers.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Tax Risk — In order to be tax-exempt, municipal securities generally must meet certain regulatory requirements. If a municipal security fails to meet these requirements, the interest received by the fund from its investment in the security and distributed to shareholders may be taxable.

Variable Rate Demand Note (VRDN) and Tender Option Bond (TOB) Risk — Investments in VRDNs and TOBs involve credit risk with respect to the issuer or financial institution providing the fund with the credit and liquidity support for the put or tender option.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Fund Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www. firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated.

Bar Chart [Heading]

rr_BarChartHeading

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

Annual Return 2008

rr_AnnualReturn2008

1.84%

^[49]

Annual Return 2009

rr_AnnualReturn2009

0.08%

^[49]

Annual Return 2010

rr_AnnualReturn2010

none

^[49]

Annual Return 2011

rr_AnnualReturn2011

none

^[49]

Annual Return 2012

rr_AnnualReturn2012

none

^[49]

Annual Return 2013

rr_AnnualReturn2013

none

^[49]

Annual Return 2014

rr_AnnualReturn2014

none

^[49]

Annual Return 2015

rr_AnnualReturn2015

none

^[49]

Annual Return 2016

rr_AnnualReturn2016

0.18%

^[49]

Annual Return 2017

rr_AnnualReturn2017

0.56%

^[49]

Year to Date Return, Label

rr_YearToDateReturnLabel

Total return for the period 1/1/18 through 9/30/18 was 0.79%.

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2018

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

0.79%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Mar. 31, 2008

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

0.56%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Mar. 31, 2016

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

none

^[50]

Performance Table Heading

rr_PerformanceTableHeading

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

1 Year

rr_AverageAnnualReturnYear01

0.56%

^[51]

5 Years

rr_AverageAnnualReturnYear05

0.15%

^[51]

10 Years

rr_AverageAnnualReturnYear10

0.27%

^[51]

Inception Date

rr_AverageAnnualReturnInceptionDate

Mar. 31, 2006

^[51]

First American Retail Tax Free Obligations Fund | Class Y

Prospectus [Line Items]

rr_ProspectusLineItems

Risk/Return [Heading]

rr_RiskReturnHeading

Retail Tax Free Obligations Fund

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

Retail Tax Free Obligations Fund’s objective is to seek maximum current income exempt from federal income taxes consistent with the preservation of capital and maintenance of liquidity.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Maximum Sales Charge (Load)

rr_MaximumCumulativeSalesChargeOverOfferingPrice

none

Maximum Deferred Sales Charge (Load)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Management Fees

rr_ManagementFeesOverAssets

0.10%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses: Shareholder Servicing Fee

rr_Component1OtherExpensesOverAssets

0.25%

Other Expenses: Miscellaneous

rr_Component2OtherExpensesOverAssets

0.22%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.57%

Less Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.12%)

^[52]

Net Expenses

rr_NetExpensesOverAssets

0.45%

^[52]

Expense Example [Heading]

rr_ExpenseExampleHeading

Example:

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 46

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

171

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

306

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 702

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Under normal market conditions, Retail Tax Free Obligations Fund invests at least 80% of its total assets in high-quality, short-term municipal securities that pay interest that is exempt from federal income tax, including the federal alternative minimum tax. The municipal securities in which the fund invests include variable rate demand notes (VRDNs) and tender option bonds (TOBs) , which are floating rate instruments that provide the fund with the option to put or tender the VRDN or TOB back to the issuer at par. VRDNs and TOBs typically have some form of external credit or liquidity support. The fund also may invest in other municipal securities, including commercial paper, municipal notes and other short-term municipal obligations.

Municipal securities are issued by state and local governments, and certain U.S. territorial possessions, to finance public infrastructure projects such as streets and highways, schools, water and sewer systems, hospitals, and airports. They also may be issued to refinance outstanding obligations as well as to obtain funds for general operating expenses and for loans to other public institutions and facilities. There are two principal classifications of municipal securities:

● general obligation bonds, which are backed by the full faith, credit, and taxing power of the issuer; and

● revenue bonds, which are payable only from the revenues generated by a specific project or from another specific revenue source.

Under normal market conditions, up to 20% of the fund’s total assets may be invested in taxable money market securities and municipal securities subject to the alternative minimum tax, although the fund does not currently intend to invest in municipal securities subject to the alternative minimum tax. Under abnormal market conditions, the fund may invest more than 20% of its total assets in such taxable securities, as conditions dictate. This may prevent the fund from achieving its goal of providing maximum current income exempt from federal income taxes.

Because the fund refers to tax-free investments in its name, it has a fundamental investment policy that it will normally invest its assets so that at least 80% of the income that it distributes will be exempt from federal regular income tax, including the federal alternative minimum tax. This policy may not be changed without shareholder approval.

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. The fund may impose a fee upon sale of your shares or may temporarily suspend your ability to sell shares if the fund’s liquidity falls below required minimums because of market conditions or other factors. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security, or a liquidity provider defaults on its obligation to purchase the security when properly tendered by the fund.

Municipal Security Risk — The value of municipal securities owned by the fund may be adversely affected by future changes in federal income tax laws, including rate reductions or the imposition of a flat tax, and adverse changes in the financial conditions of municipal securities issuers.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Tax Risk — In order to be tax-exempt, municipal securities generally must meet certain regulatory requirements. If a municipal security fails to meet these requirements, the interest received by the fund from its investment in the security and distributed to shareholders may be taxable.

Variable Rate Demand Note (VRDN) and Tender Option Bond (TOB) Risk — Investments in VRDNs and TOBs involve credit risk with respect to the issuer or financial institution providing the fund with the credit and liquidity support for the put or tender option.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Fund Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www.firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated.

Bar Chart [Heading]

rr_BarChartHeading

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

Annual Return 2008

rr_AnnualReturn2008

1.69%

^[53]

Annual Return 2009

rr_AnnualReturn2009

0.02%

^[53]

Annual Return 2010

rr_AnnualReturn2010

none

^[53]

Annual Return 2011

rr_AnnualReturn2011

none

^[53]

Annual Return 2012

rr_AnnualReturn2012

none

^[53]

Annual Return 2013

rr_AnnualReturn2013

none

^[53]

Annual Return 2014

rr_AnnualReturn2014

none

^[53]

Annual Return 2015

rr_AnnualReturn2015

none

^[53]

Annual Return 2016

rr_AnnualReturn2016

0.09%

^[53]

Annual Return 2017

rr_AnnualReturn2017

0.41%

^[53]

Year to Date Return, Label

rr_YearToDateReturnLabel

Total return for the period 1/1/18 through 9/30/18 was 0.68%.

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2018

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

0.68%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter:

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Mar. 31, 2008

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

0.52%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter:

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Jun. 30, 2016

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

none

Performance Table Heading

rr_PerformanceTableHeading

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

1 Year

rr_AverageAnnualReturnYear01

0.41%

^[54]

5 Years

rr_AverageAnnualReturnYear05

0.10%

^[54]

10 Years

rr_AverageAnnualReturnYear10

0.22%

^[54]

Inception Date

rr_AverageAnnualReturnInceptionDate

Jan. 09, 1995

^[54]

First American Retail Tax Free Obligations Fund | Class Z

Prospectus [Line Items]

rr_ProspectusLineItems

Risk/Return [Heading]

rr_RiskReturnHeading

Retail Tax Free Obligations Fund

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

Retail Tax Free Obligations Fund’s objective is to seek maximum current income exempt from federal income taxes consistent with the preservation of capital and maintenance of liquidity.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Maximum Sales Charge (Load)

rr_MaximumCumulativeSalesChargeOverOfferingPrice

none

Maximum Deferred Sales Charge (Load)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Management Fees

rr_ManagementFeesOverAssets

0.10%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.22%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.32%

Less Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.12%)

^[55]

Net Expenses

rr_NetExpensesOverAssets

0.20%

^[55]

Expense Example [Heading]

rr_ExpenseExampleHeading

Example:

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 20

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

91

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

168

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 394

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Under normal market conditions, Retail Tax Free Obligations Fund invests at least 80% of its total assets in high-quality, short-term municipal securities that pay interest that is exempt from federal income tax, including the federal alternative minimum tax. The municipal securities in which the fund invests include variable rate demand notes (VRDNs) and tender option bonds (TOBs), which are floating rate instruments that provide the fund with the option to put or tender the VRDN or TOB back to the issuer at par. VRDNs and TOBs typically have some form of external credit or liquidity support. The fund also may invest in other municipal securities, including commercial paper, municipal notes and other short-term municipal obligations.

Municipal securities are issued by state and local governments, and certain U.S. territorial possessions, to finance public infrastructure projects such as streets and highways, schools, water and sewer systems, hospitals, and airports. They also may be issued to refinance outstanding obligations as well as to obtain funds for general operating expenses and for loans to other public institutions and facilities. There are two principal classifications of municipal securities:

● general obligation bonds, which are backed by the full faith, credit, and taxing power of the issuer; and

● revenue bonds, which are payable only from the revenues generated by a specific project or from another specific revenue source.

Under normal market conditions, up to 20% of the fund’s total assets may be invested in taxable money market securities and municipal securities subject to the alternative minimum tax, although the fund does not currently intend to invest in municipal securities subject to the alternative minimum tax. Under abnormal market conditions, the fund may invest more than 20% of its total assets in such taxable securities, as conditions dictate. This may prevent the fund from achieving its goal of providing maximum current income exempt from federal income taxes.

Because the fund refers to tax-free investments in its name, it has a fundamental investment policy that it will normally invest its assets so that at least 80% of the income that it distributes will be exempt from federal regular income tax, including the federal alternative minimum tax. This policy may not be changed without shareholder approval.

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. The fund may impose a fee upon sale of your shares or may temporarily suspend your ability to sell shares if the fund’s liquidity falls below required minimums because of market conditions or other factors. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security, or a liquidity provider defaults on its obligation to purchase the security when properly tendered by the fund.

Municipal Security Risk — The value of municipal securities owned by the fund may be adversely affected by future changes in federal income tax laws, including rate reductions or the imposition of a flat tax, and adverse changes in the financial conditions of municipal securities issuers.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Tax Risk — In order to be tax-exempt, municipal securities generally must meet certain regulatory requirements. If a municipal security fails to meet these requirements, the interest received by the fund from its investment in the security and distributed to shareholders may be taxable.

Variable Rate Demand Note (VRDN) and Tender Option Bond (TOB) Risk — Investments in VRDNs and TOBs involve credit risk with respect to the issuer or financial institution providing the fund with the credit and liquidity support for the put or tender option.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Fund Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www. firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated.

Bar Chart [Heading]

rr_BarChartHeading

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

Annual Return 2008

rr_AnnualReturn2008

1.95%

^[56]

Annual Return 2009

rr_AnnualReturn2009

0.16%

^[56]

Annual Return 2010

rr_AnnualReturn2010

0.02%

^[56]

Annual Return 2011

rr_AnnualReturn2011

none

^[56]

Annual Return 2012

rr_AnnualReturn2012

none

^[56]

Annual Return 2013

rr_AnnualReturn2013

none

^[56]

Annual Return 2014

rr_AnnualReturn2014

none

^[56]

Annual Return 2015

rr_AnnualReturn2015

none

^[56]

Annual Return 2016

rr_AnnualReturn2016

0.26%

^[56]

Annual Return 2017

rr_AnnualReturn2017

0.66%

^[56]

Year to Date Return, Label

rr_YearToDateReturnLabel

Total return for the period 1/1/18 through 9/30/18 was 0.87%.

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2018

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

0.87%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter:

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Mar. 31, 2008

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

0.58%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter:

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Mar. 31, 2016

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

none

^[57]

Performance Table Heading

rr_PerformanceTableHeading

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

1 Year

rr_AverageAnnualReturnYear01

0.66%

^[58]

5 Years

rr_AverageAnnualReturnYear05

0.18%

^[58]

10 Years

rr_AverageAnnualReturnYear10

0.30%

^[58]

Inception Date

rr_AverageAnnualReturnInceptionDate

Dec. 01, 2003

^[58]

First American Treasury Obligations Fund | Class A

Prospectus [Line Items]

rr_ProspectusLineItems

Risk/Return [Heading]

rr_RiskReturnHeading

Treasury Obligations Fund

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

Treasury Obligations Fund’s objective is to seek maximum current income consistent with the preservation of capital and maintenance of liquidity.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Maximum Sales Charge (Load)

rr_MaximumCumulativeSalesChargeOverOfferingPrice

none

Maximum Deferred Sales Charge (Load)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Annual Low Balance Account Fee (for accounts under $2,500)

rr_ShareholderFeeOther

$ 15

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Management Fees

rr_ManagementFeesOverAssets

0.10%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Other Expenses: Shareholder Servicing Fee

rr_Component1OtherExpensesOverAssets

0.25%

Other Expenses: Miscellaneous

rr_Component2OtherExpensesOverAssets

0.19%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.79%

Less Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.04%)

^[59]

Net Expenses

rr_NetExpensesOverAssets

0.75%

^[59]

Expense Example [Heading]

rr_ExpenseExampleHeading

Example:

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 77

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

248

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

435

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 974

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Under normal market conditions, Treasury Obligations Fund invests exclusively in short-term U.S. Treasury obligations, including repurchase agreements secured by U.S. Treasury obligations. The U.S. Treasury obligations in which the fund invests include U.S. Treasury bonds, notes, and bills. These types of Treasury securities are essentially the same except for differences in interest rates, maturities, and dates of issuance. U.S. Treasury obligations are backed by the full faith and credit of the U.S. government.

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the collateral and may experience losses if there is any delay in its ability to do so.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Fund Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www.firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated.

Bar Chart [Heading]

rr_BarChartHeading

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

Annual Return 2008

rr_AnnualReturn2008

1.12%

^[60]

Annual Return 2009

rr_AnnualReturn2009

none

^[60]

Annual Return 2010

rr_AnnualReturn2010

none

^[60]

Annual Return 2011

rr_AnnualReturn2011

none

^[60]

Annual Return 2012

rr_AnnualReturn2012

none

^[60]

Annual Return 2013

rr_AnnualReturn2013

none

^[60]

Annual Return 2014

rr_AnnualReturn2014

none

^[60]

Annual Return 2015

rr_AnnualReturn2015

none

^[60]

Annual Return 2016

rr_AnnualReturn2016

none

^[60]

Annual Return 2017

rr_AnnualReturn2017

0.21%

^[60]

Year to Date Return, Label

rr_YearToDateReturnLabel

Total return for the period 1/1/18 through 9/30/18 was 0.74%.

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2018

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

0.74%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter:

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Mar. 31, 2008

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

0.48%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter:

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Mar. 31, 2017

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

none

^[61]

Performance Table Heading

rr_PerformanceTableHeading

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

1 Year

rr_AverageAnnualReturnYear01

0.21%

5 Years

rr_AverageAnnualReturnYear05

0.04%

10 Years

rr_AverageAnnualReturnYear10

0.13%

Inception Date

rr_AverageAnnualReturnInceptionDate

Sep. 24, 2001

First American Treasury Obligations Fund | Class D

Prospectus [Line Items]

rr_ProspectusLineItems

Risk/Return [Heading]

rr_RiskReturnHeading

Treasury Obligations Fund

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

Treasury Obligations Fund’s objective is to seek maximum current income consistent with the preservation of capital and maintenance of liquidity.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Maximum Sales Charge (Load)

rr_MaximumCumulativeSalesChargeOverOfferingPrice

none

Maximum Deferred Sales Charge (Load)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Management Fees

rr_ManagementFeesOverAssets

0.10%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.15%

Other Expenses: Shareholder Servicing Fee

rr_Component1OtherExpensesOverAssets

0.25%

Other Expenses: Miscellaneous

rr_Component2OtherExpensesOverAssets

0.14%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.64%

Less Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.04%)

^[62]

Net Expenses

rr_NetExpensesOverAssets

0.60%

^[62]

Expense Example [Heading]

rr_ExpenseExampleHeading

Example:

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 61

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

201

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

353

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 795

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Under normal market conditions, Treasury Obligations Fund invests exclusively in short-term U.S. Treasury obligations, including repurchase agreements secured by U.S. Treasury obligations. The U.S. Treasury obligations in which the fund invests include U.S. Treasury bonds, notes, and bills. These types of Treasury securities are essentially the same except for differences in interest rates, maturities, and dates of issuance. U.S. Treasury obligations are backed by the full faith and credit of the U.S. government.

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the collateral and may experience losses if there is any delay in its ability to do so.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Fund Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www. firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated.

Bar Chart [Heading]

rr_BarChartHeading

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

Annual Return 2008

rr_AnnualReturn2008

1.24%

^[63]

Annual Return 2009

rr_AnnualReturn2009

0.02%

^[63]

Annual Return 2010

rr_AnnualReturn2010

none

^[63]

Annual Return 2011

rr_AnnualReturn2011

none

^[63]

Annual Return 2012

rr_AnnualReturn2012

none

^[63]

Annual Return 2013

rr_AnnualReturn2013

none

^[63]

Annual Return 2014

rr_AnnualReturn2014

none

^[63]

Annual Return 2015

rr_AnnualReturn2015

none

^[63]

Annual Return 2016

rr_AnnualReturn2016

none

^[63]

Annual Return 2017

rr_AnnualReturn2017

0.33%

^[63]

Year to Date Return, Label

rr_YearToDateReturnLabel

Total return for the period 1/1/18 through 9/30/18 was 0.85%.

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2018

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

0.85%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter:

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Mar. 31, 2008

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

0.51%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter:

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2016

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

none

^[64]

Performance Table Heading

rr_PerformanceTableHeading

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

1 Year

rr_AverageAnnualReturnYear01

0.33%

5 Years

rr_AverageAnnualReturnYear05

0.07%

10 Years

rr_AverageAnnualReturnYear10

0.16%

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 04, 1993

First American Treasury Obligations Fund | Class P

Prospectus [Line Items]

rr_ProspectusLineItems

Risk/Return [Heading]

rr_RiskReturnHeading

Treasury Obligations Fund

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

Treasury Obligations Fund’s objective is to seek maximum current income consistent with the preservation of capital and maintenance of liquidity.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Maximum Sales Charge (Load)

rr_MaximumCumulativeSalesChargeOverOfferingPrice

none

Maximum Deferred Sales Charge (Load)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Management Fees

rr_ManagementFeesOverAssets

0.10%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.12%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.22%

Less Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.04%)

^[65]

Net Expenses

rr_NetExpensesOverAssets

0.18%

^[65]

Expense Example [Heading]

rr_ExpenseExampleHeading

Example:

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 18

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

67

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

120

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 276

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Under normal market conditions, Treasury Obligations Fund invests exclusively in short-term U.S. Treasury obligations, including repurchase agreements secured by U.S. Treasury obligations. The U.S. Treasury obligations in which the fund invests include U.S. Treasury bonds, notes, and bills. These types of Treasury securities are essentially the same except for differences in interest rates, maturities, and dates of issuance. U.S. Treasury obligations are backed by the full faith and credit of the U.S. government.

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the collateral and may experience losses if there is any delay in its ability to do so.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Fund Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following bar chart and table provide some indication of the potential risks of investing in the fund by showing changes in the fund’s performance (for Class A shares). The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www.firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s Class A share performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated. The bar chart does not reflect sales loads as none are applicable to Class P shares. Performance information for Class P shares will be provided after such shares have one full calendar year of performance.

Bar Chart [Heading]

rr_BarChartHeading

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

Annual Return 2008

rr_AnnualReturn2008

1.12%

^[66]

Annual Return 2009

rr_AnnualReturn2009

none

^[66]

Annual Return 2010

rr_AnnualReturn2010

none

^[66]

Annual Return 2011

rr_AnnualReturn2011

none

^[66]

Annual Return 2012

rr_AnnualReturn2012

none

^[66]

Annual Return 2013

rr_AnnualReturn2013

none

^[66]

Annual Return 2014

rr_AnnualReturn2014

none

^[66]

Annual Return 2015

rr_AnnualReturn2015

none

^[66]

Annual Return 2016

rr_AnnualReturn2016

none

^[66]

Annual Return 2017

rr_AnnualReturn2017

0.21%

^[66]

Year to Date Return, Label

rr_YearToDateReturnLabel

Total return for the period 1/1/18 through 9/30/18 was 0.74%.

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2018

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

0.74%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter:

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Mar. 31, 2008

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

0.48%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter:

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Mar. 31, 2017

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

none

^[67]

Performance Table Heading

rr_PerformanceTableHeading

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

1 Year

rr_AverageAnnualReturnYear01

0.21%

^[68]

5 Years

rr_AverageAnnualReturnYear05

0.04%

^[68]

10 Years

rr_AverageAnnualReturnYear10

0.13%

^[68]

Inception Date

rr_AverageAnnualReturnInceptionDate

Sep. 24, 2001

^[68]

First American Treasury Obligations Fund | Class V

Prospectus [Line Items]

rr_ProspectusLineItems

Risk/Return [Heading]

rr_RiskReturnHeading

Treasury Obligations Fund

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

Treasury Obligations Fund’s objective is to seek maximum current income consistent with the preservation of capital and maintenance of liquidity.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Maximum Sales Charge (Load)

rr_MaximumCumulativeSalesChargeOverOfferingPrice

none

Maximum Deferred Sales Charge (Load)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Management Fees

rr_ManagementFeesOverAssets

0.10%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses: Shareholder Servicing Fee

rr_Component1OtherExpensesOverAssets

0.10%

Other Expenses: Miscellaneous

rr_Component2OtherExpensesOverAssets

0.14%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.34%

Less Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.04%)

^[69]

Net Expenses

rr_NetExpensesOverAssets

0.30%

^[69]

Expense Example [Heading]

rr_ExpenseExampleHeading

Example:

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 31

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

105

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

187

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 427

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Under normal market conditions, Treasury Obligations Fund invests exclusively in short-term U.S. Treasury obligations, including repurchase agreements secured by U.S. Treasury obligations. The U.S. Treasury obligations in which the fund invests include U.S. Treasury bonds, notes, and bills. These types of Treasury securities are essentially the same except for differences in interest rates, maturities, and dates of issuance. U.S. Treasury obligations are backed by the full faith and credit of the U.S. government.

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the collateral and may experience losses if there is any delay in its ability to do so.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Fund Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www.firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated.

Bar Chart [Heading]

rr_BarChartHeading

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

Annual Return 2008

rr_AnnualReturn2008

1.51%

^[70]

Annual Return 2009

rr_AnnualReturn2009

0.12%

^[70]

Annual Return 2010

rr_AnnualReturn2010

none

^[70]

Annual Return 2011

rr_AnnualReturn2011

none

^[70]

Annual Return 2012

rr_AnnualReturn2012

none

^[70]

Annual Return 2013

rr_AnnualReturn2013

none

^[70]

Annual Return 2014

rr_AnnualReturn2014

none

^[70]

Annual Return 2015

rr_AnnualReturn2015

none

^[70]

Annual Return 2016

rr_AnnualReturn2016

0.09%

^[70]

Annual Return 2017

rr_AnnualReturn2017

0.63%

^[70]

Year to Date Return, Label

rr_YearToDateReturnLabel

Total return for the period 1/1/18 through 9/30/18 was 1.08%.

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2018

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

1.08%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter:

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Mar. 31, 2008

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

0.59%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter:

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2015

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

none

^[71]

Performance Table Heading

rr_PerformanceTableHeading

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

1 Year

rr_AverageAnnualReturnYear01

0.63%

5 Years

rr_AverageAnnualReturnYear05

0.14%

10 Years

rr_AverageAnnualReturnYear10

0.23%

Inception Date

rr_AverageAnnualReturnInceptionDate

Mar. 31, 2006

First American Treasury Obligations Fund | Class X

Prospectus [Line Items]

rr_ProspectusLineItems

Risk/Return [Heading]

rr_RiskReturnHeading

Treasury Obligations Fund

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

Treasury Obligations Fund’s objective is to seek maximum current income consistent with the preservation of capital and maintenance of liquidity.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Maximum Sales Charge (Load)

rr_MaximumCumulativeSalesChargeOverOfferingPrice

none

Maximum Deferred Sales Charge (Load)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Management Fees

rr_ManagementFeesOverAssets

0.10%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.14%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.24%

Less Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.10%)

^[72]

Net Expenses

rr_NetExpensesOverAssets

0.14%

^[72]

Expense Example [Heading]

rr_ExpenseExampleHeading

Example:

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 14

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

67

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

125

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 296

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Under normal market conditions, Treasury Obligations Fund invests exclusively in short-term U.S. Treasury obligations, including repurchase agreements secured by U.S. Treasury obligations. The U.S. Treasury obligations in which the fund invests include U.S. Treasury bonds, notes, and bills. These types of Treasury securities are essentially the same except for differences in interest rates, maturities, and dates of issuance. U.S. Treasury obligations are backed by the full faith and credit of the U.S. government.

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the collateral and may experience losses if there is any delay in its ability to do so.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Fund Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following bar chart and table provide some indication of the potential risks of investing in the fund by showing changes in the fund’s performance (for Class A shares). The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www.firstamericanfunds.com or by calling 800 677-3863.

The bar chart and table show the fund’s performance for the most recent calendar year.

Bar Chart [Heading]

rr_BarChartHeading

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

Annual Return 2017

rr_AnnualReturn2017

0.79%

^[73]

Year to Date Return, Label

rr_YearToDateReturnLabel

Total return for the period 1/1/18 through 9/30/18 was 1.36%.

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2018

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

1.20%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter:

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Dec. 31, 2017

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

0.26%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter:

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Sep. 30, 2016

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

0.06%

Performance Table Heading

rr_PerformanceTableHeading

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

1 Year

rr_AverageAnnualReturnYear01

0.79%

Since Inception

rr_AverageAnnualReturnSinceInception

0.98%

Inception Date

rr_AverageAnnualReturnInceptionDate

Apr. 05, 2016

First American Treasury Obligations Fund | Class Y

Prospectus [Line Items]

rr_ProspectusLineItems

Risk/Return [Heading]

rr_RiskReturnHeading

Treasury Obligations Fund

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

Treasury Obligations Fund’s objective is to seek maximum current income consistent with the preservation of capital and maintenance of liquidity.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Maximum Sales Charge (Load)

rr_MaximumCumulativeSalesChargeOverOfferingPrice

none

Maximum Deferred Sales Charge (Load)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Management Fees

rr_ManagementFeesOverAssets

0.10%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses: Shareholder Servicing Fee

rr_Component1OtherExpensesOverAssets

0.25%

Other Expenses: Miscellaneous

rr_Component2OtherExpensesOverAssets

0.14%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.49%

Less Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.04%)

^[74]

Net Expenses

rr_NetExpensesOverAssets

0.45%

^[74]

Expense Example [Heading]

rr_ExpenseExampleHeading

Example:

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 46

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

153

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

270

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 612

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Under normal market conditions, Treasury Obligations Fund invests exclusively in short-term U.S. Treasury obligations, including repurchase agreements secured by U.S. Treasury obligations. The U.S. Treasury obligations in which the fund invests include U.S. Treasury bonds, notes, and bills. These types of Treasury securities are essentially the same except for differences in interest rates, maturities, and dates of issuance. U.S. Treasury obligations are backed by the full faith and credit of the U.S. government.

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the collateral and may experience losses if there is any delay in its ability to do so.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Fund Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www.firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated.

Bar Chart [Heading]

rr_BarChartHeading

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

Annual Return 2008

rr_AnnualReturn2008

1.36%

^[75]

Annual Return 2009

rr_AnnualReturn2009

0.06%

^[75]

Annual Return 2010

rr_AnnualReturn2010

none

^[75]

Annual Return 2011

rr_AnnualReturn2011

none

^[75]

Annual Return 2012

rr_AnnualReturn2012

none

^[75]

Annual Return 2013

rr_AnnualReturn2013

none

^[75]

Annual Return 2014

rr_AnnualReturn2014

none

^[75]

Annual Return 2015

rr_AnnualReturn2015

none

^[75]

Annual Return 2016

rr_AnnualReturn2016

0.01%

^[75]

Annual Return 2017

rr_AnnualReturn2017

0.48%

^[75]

Year to Date Return, Label

rr_YearToDateReturnLabel

Total return for the period 1/1/18 through 9/30/18 was 0.97%

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2018

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

0.97%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter:

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Mar. 31, 2008

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

0.55%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter:

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Sep. 30, 2016

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

none

^[76]

Performance Table Heading

rr_PerformanceTableHeading

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

1 Year

rr_AverageAnnualReturnYear01

0.48%

5 Years

rr_AverageAnnualReturnYear05

0.10%

10 Years

rr_AverageAnnualReturnYear10

0.19%

Inception Date

rr_AverageAnnualReturnInceptionDate

Jan. 24, 1995

First American Treasury Obligations Fund | Class Z

Prospectus [Line Items]

rr_ProspectusLineItems

Risk/Return [Heading]

rr_RiskReturnHeading

Treasury Obligations Fund

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

Treasury Obligations Fund’s objective is to seek maximum current income consistent with the preservation of capital and maintenance of liquidity.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Maximum Sales Charge (Load)

rr_MaximumCumulativeSalesChargeOverOfferingPrice

none

Maximum Deferred Sales Charge (Load)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Management Fees

rr_ManagementFeesOverAssets

0.10%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.14%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.24%

Less Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.06%)

^[77]

Net Expenses

rr_NetExpensesOverAssets

0.18%

^[77]

Expense Example [Heading]

rr_ExpenseExampleHeading

Example:

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 18

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

71

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

129

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 300

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Under normal market conditions, Treasury Obligations Fund invests exclusively in short-term U.S. Treasury obligations, including repurchase agreements secured by U.S. Treasury obligations. The U.S. Treasury obligations in which the fund invests include U.S. Treasury bonds, notes, and bills. These types of Treasury securities are essentially the same except for differences in interest rates, maturities, and dates of issuance. U.S. Treasury obligations are backed by the full faith and credit of the U.S. government.

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the collateral and may experience losses if there is any delay in its ability to do so.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Fund Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www. firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated.

Bar Chart [Heading]

rr_BarChartHeading

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

Annual Return 2008

rr_AnnualReturn2008

1.60%

^[78]

Annual Return 2009

rr_AnnualReturn2009

0.17%

^[78]

Annual Return 2010

rr_AnnualReturn2010

none

^[78]

Annual Return 2011

rr_AnnualReturn2011

none

^[78]

Annual Return 2012

rr_AnnualReturn2012

none

^[78]

Annual Return 2013

rr_AnnualReturn2013

none

^[78]

Annual Return 2014

rr_AnnualReturn2014

none

^[78]

Annual Return 2015

rr_AnnualReturn2015

none

^[78]

Annual Return 2016

rr_AnnualReturn2016

0.20%

^[78]

Annual Return 2017

rr_AnnualReturn2017

0.75%

^[78]

Year to Date Return, Label

rr_YearToDateReturnLabel

Total return for the period 1/1/18 through 9/30/18 was 1.17%.

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2018

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

1.17%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter:

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Mar. 31, 2008

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

0.61%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter:

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2015

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

none

^[79]

Performance Table Heading

rr_PerformanceTableHeading

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

1 Year

rr_AverageAnnualReturnYear01

0.75%

5 Years

rr_AverageAnnualReturnYear05

0.19%

10 Years

rr_AverageAnnualReturnYear10

0.27%

Inception Date

rr_AverageAnnualReturnInceptionDate

Dec. 01, 2003

First American U.S. Treasury Money Market Fund | Class A

Prospectus [Line Items]

rr_ProspectusLineItems

Risk/Return [Heading]

rr_RiskReturnHeading

U.S. Treasury Money Market Fund

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

U.S. Treasury Money Market Fund’s objective is to seek maximum current income consistent with the preservation of capital and maintenance of liquidity.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Maximum Sales Charge (Load)

rr_MaximumCumulativeSalesChargeOverOfferingPrice

none

Maximum Deferred Sales Charge (Load)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Annual Low Balance Account Fee (for accounts under $2,500)

rr_ShareholderFeeOther

$ 15

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Management Fees

rr_ManagementFeesOverAssets

0.10%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Other Expenses: Shareholder Servicing Fee

rr_Component1OtherExpensesOverAssets

0.25%

Other Expenses: Miscellaneous

rr_Component2OtherExpensesOverAssets

0.22%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.82%

Less Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.07%)

^[80]

Net Expenses

rr_NetExpensesOverAssets

0.75%

^[80]

Expense Example [Heading]

rr_ExpenseExampleHeading

Example:

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 77

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

255

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

448

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 1,007

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

U.S. Treasury Money Market Fund invests exclusively in direct obligations of the U.S. Treasury and other money market funds that invest exclusively in such obligations. The U.S. Treasury obligations in which the fund invests include U.S. Treasury bonds, notes, and bills. These types of Treasury securities are essentially the same except for differences in interest rates, maturities, and dates of issuance. U.S. Treasury obligations are backed by the full faith and credit of the U.S. government.

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Additional Expenses — If the fund invests in other money market funds, you will bear both your proportionate share of the expenses in the fund (including management and advisory fees) and, indirectly, the expenses of such other money market fund.

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Fund Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www.firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated.

Bar Chart [Heading]

rr_BarChartHeading

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

Annual Return 2008

rr_AnnualReturn2008

0.99%

^[81]

Annual Return 2009

rr_AnnualReturn2009

none

^[81]

Annual Return 2010

rr_AnnualReturn2010

none

^[81]

Annual Return 2011

rr_AnnualReturn2011

none

^[81]

Annual Return 2012

rr_AnnualReturn2012

none

^[81]

Annual Return 2013

rr_AnnualReturn2013

none

^[81]

Annual Return 2014

rr_AnnualReturn2014

none

^[81]

Annual Return 2015

rr_AnnualReturn2015

none

^[81]

Annual Return 2016

rr_AnnualReturn2016

none

^[81]

Annual Return 2017

rr_AnnualReturn2017

0.17%

^[81]

Year to Date Return, Label

rr_YearToDateReturnLabel

Total return for the period 1/1/18 through 9/30/18 was 0.73%.

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2018

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

0.73%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter:

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Mar. 31, 2008

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

0.51%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter:

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Mar. 31, 2017

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

none

^[82]

Performance Table Heading

rr_PerformanceTableHeading

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

1 Year

rr_AverageAnnualReturnYear01

0.17%

5 Years

rr_AverageAnnualReturnYear05

0.04%

10 Years

rr_AverageAnnualReturnYear10

0.12%

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 25, 2004

First American U.S. Treasury Money Market Fund | Class D

Prospectus [Line Items]

rr_ProspectusLineItems

Risk/Return [Heading]

rr_RiskReturnHeading

U.S. Treasury Money Market Fund

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

U.S. Treasury Money Market Fund’s objective is to seek maximum current income consistent with the preservation of capital and maintenance of liquidity.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Maximum Sales Charge (Load)

rr_MaximumCumulativeSalesChargeOverOfferingPrice

none

Maximum Deferred Sales Charge (Load)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Management Fees

rr_ManagementFeesOverAssets

0.10%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.15%

Other Expenses: Shareholder Servicing Fee

rr_Component1OtherExpensesOverAssets

0.25%

Other Expenses: Miscellaneous

rr_Component2OtherExpensesOverAssets

0.17%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.67%

Less Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.07%)

^[83]

Net Expenses

rr_NetExpensesOverAssets

0.60%

^[83]

Expense Example [Heading]

rr_ExpenseExampleHeading

Example:

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 61

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

207

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

366

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 828

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

U.S. Treasury Money Market Fund invests exclusively in direct obligations of the U.S. Treasury and other money market funds that invest exclusively in such obligations. The U.S. Treasury obligations in which the fund invests include U.S. Treasury bonds, notes, and bills. These types of Treasury securities are essentially the same except for differences in interest rates, maturities, and dates of issuance. U.S. Treasury obligations are backed by the full faith and credit of the U.S. government.

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Additional Expenses — If the fund invests in other money market funds, you will bear both your proportionate share of the expenses in the fund (including management and advisory fees) and, indirectly, the expenses of such other money market fund.

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Fund Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www. firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated.

Bar Chart [Heading]

rr_BarChartHeading

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

Annual Return 2008

rr_AnnualReturn2008

1.13%

^[84]

Annual Return 2009

rr_AnnualReturn2009

none

^[84]

Annual Return 2010

rr_AnnualReturn2010

none

^[84]

Annual Return 2011

rr_AnnualReturn2011

none

^[84]

Annual Return 2012

rr_AnnualReturn2012

none

^[84]

Annual Return 2013

rr_AnnualReturn2013

none

^[84]

Annual Return 2014

rr_AnnualReturn2014

none

^[84]

Annual Return 2015

rr_AnnualReturn2015

none

^[84]

Annual Return 2016

rr_AnnualReturn2016

none

^[84]

Annual Return 2017

rr_AnnualReturn2017

0.29%

^[84]

Year to Date Return, Label

rr_YearToDateReturnLabel

Total return for the period 1/1/18 through 9/30/18 was 0.84%.

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2018

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

0.84%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter:

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Mar. 31, 2008

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

0.54%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter:

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Mar. 31, 2017

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

none

^[85]

Performance Table Heading

rr_PerformanceTableHeading

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

1 Year

rr_AverageAnnualReturnYear01

0.29%

5 Years

rr_AverageAnnualReturnYear05

0.06%

10 Years

rr_AverageAnnualReturnYear10

0.14%

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 25, 2004

First American U.S. Treasury Money Market Fund | Class V

Prospectus [Line Items]

rr_ProspectusLineItems

Risk/Return [Heading]

rr_RiskReturnHeading

U.S. Treasury Money Market Fund

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

U.S. Treasury Money Market Fund’s objective is to seek maximum current income consistent with the preservation of capital and maintenance of liquidity.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Maximum Sales Charge (Load)

rr_MaximumCumulativeSalesChargeOverOfferingPrice

none

Maximum Deferred Sales Charge (Load)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Management Fees

rr_ManagementFeesOverAssets

0.10%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses: Shareholder Servicing Fee

rr_Component1OtherExpensesOverAssets

0.10%

Other Expenses: Miscellaneous

rr_Component2OtherExpensesOverAssets

0.17%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.37%

Less Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.07%)

^[86]

Net Expenses

rr_NetExpensesOverAssets

0.30%

^[86]

Expense Example [Heading]

rr_ExpenseExampleHeading

Example:

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 31

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

112

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

201

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 461

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

U.S. Treasury Money Market Fund invests exclusively in direct obligations of the U.S. Treasury and other money market funds that invest exclusively in such obligations. The U.S. Treasury obligations in which the fund invests include U.S. Treasury bonds, notes, and bills. These types of Treasury securities are essentially the same except for differences in interest rates, maturities, and dates of issuance. U.S. Treasury obligations are backed by the full faith and credit of the U.S. government.

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Additional Expenses — If the fund invests in other money market funds, you will bear both your proportionate share of the expenses in the fund (including management and advisory fees) and, indirectly, the expenses of such other money market fund.

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Fund Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www.firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated.

Bar Chart [Heading]

rr_BarChartHeading

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

Annual Return 2008

rr_AnnualReturn2008

1.42%

^[87]

Annual Return 2009

rr_AnnualReturn2009

none

^[87]

Annual Return 2010

rr_AnnualReturn2010

none

^[87]

Annual Return 2011

rr_AnnualReturn2011

none

^[87]

Annual Return 2012

rr_AnnualReturn2012

none

^[87]

Annual Return 2013

rr_AnnualReturn2013

none

^[87]

Annual Return 2014

rr_AnnualReturn2014

none

^[87]

Annual Return 2015

rr_AnnualReturn2015

none

^[87]

Annual Return 2016

rr_AnnualReturn2016

0.04%

^[87]

Annual Return 2017

rr_AnnualReturn2017

0.58%

^[87]

Year to Date Return, Label

rr_YearToDateReturnLabel

Total return for the period 1/1/18 through 9/30/18 was 1.07%.

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2018

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

1.07%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter:

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Mar. 31, 2008

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

0.62%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter:

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Jun. 30, 2016

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

none

^[88]

Performance Table Heading

rr_PerformanceTableHeading

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

1 Year

rr_AverageAnnualReturnYear01

0.58%

5 Years

rr_AverageAnnualReturnYear05

0.12%

10 Years

rr_AverageAnnualReturnYear10

0.20%

Inception Date

rr_AverageAnnualReturnInceptionDate

Mar. 31, 2006

First American U.S. Treasury Money Market Fund | Class Y

Prospectus [Line Items]

rr_ProspectusLineItems

Risk/Return [Heading]

rr_RiskReturnHeading

U.S. Treasury Money Market Fund

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

U.S. Treasury Money Market Fund’s objective is to seek maximum current income consistent with the preservation of capital and maintenance of liquidity.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Maximum Sales Charge (Load)

rr_MaximumCumulativeSalesChargeOverOfferingPrice

none

Maximum Deferred Sales Charge (Load)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Management Fees

rr_ManagementFeesOverAssets

0.10%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses: Shareholder Servicing Fee

rr_Component1OtherExpensesOverAssets

0.25%

Other Expenses: Miscellaneous

rr_Component2OtherExpensesOverAssets

0.17%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.52%

Less Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.07%)

^[89]

Net Expenses

rr_NetExpensesOverAssets

0.45%

^[89]

Expense Example [Heading]

rr_ExpenseExampleHeading

Example:

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 46

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

160

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

284

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 646

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

U.S. Treasury Money Market Fund invests exclusively in direct obligations of the U.S. Treasury and other money market funds that invest exclusively in such obligations. The U.S. Treasury obligations in which the fund invests include U.S. Treasury bonds, notes, and bills. These types of Treasury securities are essentially the same except for differences in interest rates, maturities, and dates of issuance. U.S. Treasury obligations are backed by the full faith and credit of the U.S. government.

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Additional Expenses — If the fund invests in other money market funds, you will bear both your proportionate share of the expenses in the fund (including management and advisory fees) and, indirectly, the expenses of such other money market fund.

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Fund Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www.firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated.

Bar Chart [Heading]

rr_BarChartHeading

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

Annual Return 2008

rr_AnnualReturn2008

1.27%

^[90]

Annual Return 2009

rr_AnnualReturn2009

none

^[90]

Annual Return 2010

rr_AnnualReturn2010

none

^[90]

Annual Return 2011

rr_AnnualReturn2011

none

^[90]

Annual Return 2012

rr_AnnualReturn2012

none

^[90]

Annual Return 2013

rr_AnnualReturn2013

none

^[90]

Annual Return 2014

rr_AnnualReturn2014

none

^[90]

Annual Return 2015

rr_AnnualReturn2015

none

^[90]

Annual Return 2016

rr_AnnualReturn2016

none

^[90]

Annual Return 2017

rr_AnnualReturn2017

0.43%

^[90]

Year to Date Return, Label

rr_YearToDateReturnLabel

Total return for the period 1/1/18 through 9/30/18 was 0.96%

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2018

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

0.96%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter:

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Mar. 31, 2008

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

0.58%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter:

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2016

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

none

^[91]

Performance Table Heading

rr_PerformanceTableHeading

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

1 Year

rr_AverageAnnualReturnYear01

0.43%

5 Years

rr_AverageAnnualReturnYear05

0.09%

10 Years

rr_AverageAnnualReturnYear10

0.17%

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 25, 2004

First American U.S. Treasury Money Market Fund | Class Z

Prospectus [Line Items]

rr_ProspectusLineItems

Risk/Return [Heading]

rr_RiskReturnHeading

U.S. Treasury Money Market Fund

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

U.S. Treasury Money Market Fund’s objective is to seek maximum current income consistent with the preservation of capital and maintenance of liquidity.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Maximum Sales Charge (Load)

rr_MaximumCumulativeSalesChargeOverOfferingPrice

none

Maximum Deferred Sales Charge (Load)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Management Fees

rr_ManagementFeesOverAssets

0.10%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.17%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.27%

Less Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.07%)

^[92]

Net Expenses

rr_NetExpensesOverAssets

0.20%

^[92]

Expense Example [Heading]

rr_ExpenseExampleHeading

Example:

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 20

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

80

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

145

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 336

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

U.S. Treasury Money Market Fund invests exclusively in direct obligations of the U.S. Treasury and other money market funds that invest exclusively in such obligations. The U.S. Treasury obligations in which the fund invests include U.S. Treasury bonds, notes, and bills. These types of Treasury securities are essentially the same except for differences in interest rates, maturities, and dates of issuance. U.S. Treasury obligations are backed by the full faith and credit of the U.S. government.

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Additional Expenses — If the fund invests in other money market funds, you will bear both your proportionate share of the expenses in the fund (including management and advisory fees) and, indirectly, the expenses of such other money market fund.

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Fund Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www.firstamericanfunds.com or by calling 800 677-3863.

The bar chart shows you the variability of the fund’s performance from year to year. The table illustrates the fund’s average annual total returns over the time periods indicated.

Bar Chart [Heading]

rr_BarChartHeading

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

Annual Return 2008

rr_AnnualReturn2008

1.52%

^[93]

Annual Return 2009

rr_AnnualReturn2009

0.03%

^[93]

Annual Return 2010

rr_AnnualReturn2010

none

^[93]

Annual Return 2011

rr_AnnualReturn2011

none

^[93]

Annual Return 2012

rr_AnnualReturn2012

none

^[93]

Annual Return 2013

rr_AnnualReturn2013

none

^[93]

Annual Return 2014

rr_AnnualReturn2014

none

^[93]

Annual Return 2015

rr_AnnualReturn2015

none

^[93]

Annual Return 2016

rr_AnnualReturn2016

0.13%

^[93]

Annual Return 2017

rr_AnnualReturn2017

0.68%

^[93]

Year to Date Return, Label

rr_YearToDateReturnLabel

Total return for the period 1/1/18 through 9/30/18 was 1.14%.

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2018

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

1.14%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter:

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Mar. 31, 2008

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

0.64%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter:

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2015

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

none

^[94]

Performance Table Heading

rr_PerformanceTableHeading

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

1 Year

rr_AverageAnnualReturnYear01

0.68%

5 Years

rr_AverageAnnualReturnYear05

0.16%

10 Years

rr_AverageAnnualReturnYear10

0.24%

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 25, 2004

First American Retail Prime Obligations Fund | Class A

Prospectus [Line Items]

rr_ProspectusLineItems

Risk/Return [Heading]

rr_RiskReturnHeading

Retail Prime Obligations Fund

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

Retail Prime Obligations Fund’s objective is to seek maximum current income to the extent consistent with the preservation of capital and maintenance of liquidity.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Maximum Sales Charge (Load)

rr_MaximumCumulativeSalesChargeOverOfferingPrice

none

Maximum Deferred Sales Charge (Load)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Annual Low Balance Account Fee (for accounts under $2,500)

rr_ShareholderFeeOther

$ 15

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Management Fees

rr_ManagementFeesOverAssets

0.10%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Other Expenses: Shareholder Servicing Fee

rr_Component1OtherExpensesOverAssets

0.25%

Other Expenses: Miscellaneous

rr_Component2OtherExpensesOverAssets

0.20%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.80%

Less Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.05%)

^[95]

Net Expenses

rr_NetExpensesOverAssets

0.75%

^[95]

Expense Example [Heading]

rr_ExpenseExampleHeading

Example:

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 77

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

250

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

439

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 985

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Retail Prime Obligations Fund invests in high-quality short-term debt obligations, including:

● commercial paper;

● U.S. dollar-denominated obligations of domestic and foreign banks with total assets of at least $500 million (including fixed and variable rate certificates of deposit, time deposits, and bankers’ acceptances);

● non-convertible corporate debt securities;

● securities issued by the U.S. government or one of its agencies or instrumentalities;

● municipal securities, including variable rate demand notes, commercial paper, and municipal notes and other short-term municipal obligations;

● loan participation interests; and

● repurchase agreements.

The fund concentrates its investments in the banking industry. Therefore, under normal market conditions, the fund will invest more than 25% of its total assets in securities issued by companies in the banking industry. The fund may, however, invest 25% or less of its total assets in this industry as a temporary defensive measure.

The advisor will only purchase (and hold) securities that it determines present minimal credit risk. If a security is no longer determined to present minimal credit risk, the advisor will make every attempt to sell the security, unless it has determined that it would not be in the best interest of the fund to dispose of the security at that time and, where necessary, has obtained the approval of the fund’s board of directors to continue to hold the security.

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. The fund may impose a fee upon sale of your shares or may temporarily suspend your ability to sell shares if the fund’s liquidity falls below required minimums because of market conditions or other factors. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Banking Industry Risk — An adverse development in the banking industry (domestic or foreign) may affect the value of the fund’s investments more than if the fund were not invested to such a degree in the banking industry. Banks may be particularly susceptible to certain economic factors such as interest rate changes, adverse developments in the real estate market, fiscal, regulatory and monetary policy and general economic cycles.

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Foreign Security Risk — Securities of foreign issuers, even when dollar denominated and publicly traded in the United States, may involve risks not associated with the securities of domestic issuers. Uncertainty surrounding the sovereign debt of several European Union countries, as well as the continued existence of the European Union itself, has disrupted and may continue to disrupt markets in the United States and around the world. If a country changes its currency or leaves the European Union or if the European Union dissolves, the world’s securities markets likely will be significantly disrupted.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security, or a liquidity provider defaults on its obligation to purchase the security when properly tendered by the fund.

Municipal Security Risk — The value of municipal securities owned by the fund may be adversely affected by future changes in federal income tax laws, including rate reductions or the imposition of a flat tax, and adverse changes in the financial conditions of municipal securities issuers.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the securities purchased and may experience losses if the proceeds from the sale of the securities are less than the full repurchase price.

Variable Rate Demand Note (VRDN) Risk — Investments in VRDNs involve credit risk with respect to the issuer or financial institution providing the fund with the credit and liquidity support for the unconditional put option.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Fund Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www.firstamericanfunds.com or by calling 800 677-3863.

The bar chart and table show the fund’s performance for the most recent calendar year.

Bar Chart [Heading]

rr_BarChartHeading

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

Annual Return 2017

rr_AnnualReturn2017

0.46%

^[96]

Year to Date Return, Label

rr_YearToDateReturnLabel

Total return for the period 1/1/18 through 9/30/18 was 0.94%.

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2018

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

0.94%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter:

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Dec. 31, 2017

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

0.17%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter:

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2016

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

0.01%

Performance Table Heading

rr_PerformanceTableHeading

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

1 Year

rr_AverageAnnualReturnYear01

0.46%

Inception Date

rr_AverageAnnualReturnInceptionDate

Jul. 18, 2016

First American Retail Prime Obligations Fund | Class T

Prospectus [Line Items]

rr_ProspectusLineItems

Risk/Return [Heading]

rr_RiskReturnHeading

Retail Prime Obligations Fund

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

Retail Prime Obligations Fund’s objective is to seek maximum current income to the extent consistent with the preservation of capital and maintenance of liquidity.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Maximum Sales Charge (Load)

rr_MaximumCumulativeSalesChargeOverOfferingPrice

none

Maximum Deferred Sales Charge (Load)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Management Fees

rr_ManagementFeesOverAssets

0.10%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses: Shareholder Servicing Fee

rr_Component1OtherExpensesOverAssets

0.20%

Other Expenses: Miscellaneous

rr_Component2OtherExpensesOverAssets

0.17%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.47%

Less Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.07%)

^[97]

Net Expenses

rr_NetExpensesOverAssets

0.40%

^[97]

Expense Example [Heading]

rr_ExpenseExampleHeading

Example:

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods . The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 41

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

144

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

256

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 585

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Retail Prime Obligations Fund invests in high-quality short-term debt obligations, including:

● commercial paper;

● U.S. dollar-denominated obligations of domestic and foreign banks with total assets of at least $500 million (including fixed and variable rate certificates of deposit, time deposits, and bankers’ acceptances);

● non-convertible corporate debt securities;

● securities issued by the U.S. government or one of its agencies or instrumentalities;

● municipal securities, including variable rate demand notes, commercial paper, and municipal notes and other short-term municipal obligations;

● loan participation interests; and

● repurchase agreements.

The fund concentrates its investments in the banking industry. Therefore, under normal market conditions, the fund will invest more than 25% of its total assets in securities issued by companies in the banking industry. The fund may, however, invest 25% or less of its total assets in this industry as a temporary defensive measure.

The advisor will only purchase (and hold) securities that it determines present minimal credit risk. If a security is no longer determined to present minimal credit risk, the advisor will make every attempt to sell the security, unless it has determined that it would not be in the best interest of the fund to dispose of the security at that time and, where necessary, has obtained the approval of the fund’s board of directors to continue to hold the security.

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. The fund may impose a fee upon sale of your shares or may temporarily suspend your ability to sell shares if the fund’s liquidity falls below required minimums because of market conditions or other factors. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Banking Industry Risk — An adverse development in the banking industry (domestic or foreign) may affect the value of the fund’s investments more than if the fund was not invested to such a degree in the banking industry. Banks may be particularly susceptible to certain economic factors such as interest rate changes, adverse developments in the real estate market, fiscal, regulatory and monetary policy and general economic cycles.

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Foreign Security Risk — Securities of foreign issuers, even when dollar denominated and publicly traded in the United States, may involve risks not associated with the securities of domestic issuers. Uncertainty surrounding the sovereign debt of several European Union countries, as well as the continued existence of the European Union itself, has disrupted and may continue to disrupt markets in the United States and around the world. If a country changes its currency or leaves the European Union or if the European Union dissolves, the world’s securities markets likely will be significantly disrupted.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security, or a liquidity provider defaults on its obligation to purchase the security when properly tendered by the fund.

Municipal Security Risk — The value of municipal securities owned by the fund may be adversely affected by future changes in federal income tax laws, including rate reductions or the imposition of a flat tax, and adverse changes in the financial conditions of municipal securities issuers.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the securities purchased and may experience losses if the proceeds from the sale of the securities are less than the full repurchase price.

Variable Rate Demand Note (VRDN) Risk — Investments in VRDNs involve credit risk with respect to the issuer or financial institution providing the fund with the credit and liquidity support for the unconditional put option.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Fund Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www.firstamericanfunds.com or by calling 800 677-3863.

The bar chart and table show the fund’s performance for the most recent calendar year.

Bar Chart [Heading]

rr_BarChartHeading

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

Annual Return 2017

rr_AnnualReturn2017

0.81%

^[98]

Year to Date Return, Label

rr_YearToDateReturnLabel

Total return for the period 1/1/18 through 9/30/18 was 1.21%.

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2018

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

1.21%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter:

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Dec. 31, 2017

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

0.25%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter:

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2016

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

0.09%

Performance Table Heading

rr_PerformanceTableHeading

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

1 Year

rr_AverageAnnualReturnYear01

0.81%

Inception Date

rr_AverageAnnualReturnInceptionDate

Jul. 18, 2016

First American Retail Prime Obligations Fund | Class V

Prospectus [Line Items]

rr_ProspectusLineItems

Risk/Return [Heading]

rr_RiskReturnHeading

Retail Prime Obligations Fund

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

Retail Prime Obligations Fund’s objective is to seek maximum current income to the extent consistent with the preservation of capital and maintenance of liquidity.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Maximum Sales Charge (Load)

rr_MaximumCumulativeSalesChargeOverOfferingPrice

none

Maximum Deferred Sales Charge (Load)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Management Fees

rr_ManagementFeesOverAssets

0.10%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses: Shareholder Servicing Fee

rr_Component1OtherExpensesOverAssets

0.10%

Other Expenses: Miscellaneous

rr_Component2OtherExpensesOverAssets

0.16%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.36%

Less Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.06%)

^[99]

Net Expenses

rr_NetExpensesOverAssets

0.30%

^[99]

Expense Example [Heading]

rr_ExpenseExampleHeading

Example:

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 31

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

110

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

196

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 450

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Retail Prime Obligations Fund invests in high-quality short-term debt obligations, including:

● commercial paper;

● U.S. dollar-denominated obligations of domestic and foreign banks with total assets of at least $500 million (including fixed and variable rate certificates of deposit, time deposits, and bankers’ acceptances);

● non-convertible corporate debt securities;

● securities issued by the U.S. government or one of its agencies or instrumentalities;

● municipal securities, including variable rate demand notes, commercial paper, and municipal notes and other short-term municipal obligations;

● loan participation interests; and

● repurchase agreements.

The fund concentrates its investments in the banking industry. Therefore, under normal market conditions, the fund will invest more than 25% of its total assets in securities issued by companies in the banking industry. The fund may, however, invest 25% or less of its total assets in this industry as a temporary defensive measure.

The advisor will only purchase (and hold) securities that it determines present minimal credit risk. If a security is no longer determined to present minimal credit risk, the advisor will make every attempt to sell the security, unless it has determined that it would not be in the best interest of the fund to dispose of the security at that time and, where necessary, has obtained the approval of the fund’s board of directors to continue to hold the security.

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. The fund may impose a fee upon sale of your shares or may temporarily suspend your ability to sell shares if the fund’s liquidity falls below required minimums because of market conditions or other factors. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Banking Industry Risk — An adverse development in the banking industry (domestic or foreign) may affect the value of the fund’s investments more than if the fund were not invested to such a degree in the banking industry. Banks may be particularly susceptible to certain economic factors such as interest rate changes, adverse developments in the real estate market, fiscal, regulatory and monetary policy and general economic cycles.

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Foreign Security Risk — Securities of foreign issuers, even when dollar denominated and publicly traded in the United States, may involve risks not associated with the securities of domestic issuers. Uncertainty surrounding the sovereign debt of several European Union countries, as well as the continued existence of the European Union itself, has disrupted and may continue to disrupt markets in the United States and around the world. If a country changes its currency or leaves the European Union or if the European Union dissolves, the world’s securities markets likely will be significantly disrupted.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security, or a liquidity provider defaults on its obligation to purchase the security when properly tendered by the fund.

Municipal Security Risk — The value of municipal securities owned by the fund may be adversely affected by future changes in federal income tax laws, including rate reductions or the imposition of a flat tax, and adverse changes in the financial conditions of municipal securities issuers.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the securities purchased and may experience losses if the proceeds from the sale of the securities are less than the full repurchase price.

Variable Rate Demand Note (VRDN) Risk — Investments in VRDNs involve credit risk with respect to the issuer or financial institution providing the fund with the credit and liquidity support for the unconditional put option.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Fund Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www.firstamericanfunds.com or by calling 800 677-3863.

The bar chart and table show the fund’s performance for the most recent calendar year.

Bar Chart [Heading]

rr_BarChartHeading

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

Annual Return 2017

rr_AnnualReturn2017

0.91%

^[100]

Year to Date Return, Label

rr_YearToDateReturnLabel

Total return for the period 1/1/18 through 9/30/18 was 1.28%.

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2018

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

1.28%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter:

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Dec. 31, 2017

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

0.28%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter:

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2016

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

0.12%

Performance Table Heading

rr_PerformanceTableHeading

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

1 Year

rr_AverageAnnualReturnYear01

0.91%

Inception Date

rr_AverageAnnualReturnInceptionDate

Jul. 18, 2016

First American Retail Prime Obligations Fund | Class X

Prospectus [Line Items]

rr_ProspectusLineItems

Risk/Return [Heading]

rr_RiskReturnHeading

Retail Prime Obligations Fund

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

Retail Prime Obligations Fund’s objective is to seek maximum current income to the extent consistent with the preservation of capital and maintenance of liquidity.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Maximum Sales Charge (Load)

rr_MaximumCumulativeSalesChargeOverOfferingPrice

none

Maximum Deferred Sales Charge (Load)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Management Fees

rr_ManagementFeesOverAssets

0.10%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.16%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.26%

Less Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.12%)

^[101]

Net Expenses

rr_NetExpensesOverAssets

0.14%

^[101]

Expense Example [Heading]

rr_ExpenseExampleHeading

Example:

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 14

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

71

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

134

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 319

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Retail Prime Obligations Fund invests in high-quality short-term debt obligations, including:

● commercial paper;

● U.S. dollar-denominated obligations of domestic and foreign banks with total assets of at least $500 million (including fixed and variable rate certificates of deposit, time deposits, and bankers’ acceptances);

● non-convertible corporate debt securities;

● securities issued by the U.S. government or one of its agencies or instrumentalities;

● municipal securities, including variable rate demand notes, commercial paper, and municipal notes and other short-term municipal obligations;

● loan participation interests; and

● repurchase agreements.

The fund concentrates its investments in the banking industry. Therefore, under normal market conditions, the fund will invest more than 25% of its total assets in securities issued by companies in the banking industry. The fund may, however, invest 25% or less of its total assets in this industry as a temporary defensive measure.

The advisor will only purchase (and hold) securities that it determines present minimal credit risk. If a security is no longer determined to present minimal credit risk, the advisor will make every attempt to sell the security, unless it has determined that it would not be in the best interest of the fund to dispose of the security at that time and, where necessary, has obtained the approval of the fund’s board of directors to continue to hold the security.

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. The fund may impose a fee upon sale of your shares or may temporarily suspend your ability to sell shares if the fund’s liquidity falls below required minimums because of market conditions or other factors. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Banking Industry Risk — An adverse development in the banking industry (domestic or foreign) may affect the value of the fund’s investments more than if the fund were not invested to such a degree in the banking industry. Banks may be particularly susceptible to certain economic factors such as interest rate changes, adverse developments in the real estate market, fiscal, regulatory and monetary policy and general economic cycles.

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Foreign Security Risk — Securities of foreign issuers, even when dollar denominated and publicly traded in the United States, may involve risks not associated with the securities of domestic issuers. Uncertainty surrounding the sovereign debt of several European Union countries, as well as the continued existence of the European Union itself, has disrupted and may continue to disrupt markets in the United States and around the world. If a country changes its currency or leaves the European Union or if the European Union dissolves, the world’s securities markets likely will be significantly disrupted.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security, or a liquidity provider defaults on its obligation to purchase the security when properly tendered by the fund.

Municipal Security Risk — The value of municipal securities owned by the fund may be adversely affected by future changes in federal income tax laws, including rate reductions or the imposition of a flat tax, and adverse changes in the financial conditions of municipal securities issuers.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the securities purchased and may experience losses if the proceeds from the sale of the securities are less than the full repurchase price.

Variable Rate Demand Note (VRDN) Risk — Investments in VRDNs involve credit risk with respect to the issuer or financial institution providing the fund with the credit and liquidity support for the unconditional put option.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Fund Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www.firstamericanfunds.com or by calling 800 677-3863.

The bar chart and the table show you the fund’s performance for the most recent calendar year.

Bar Chart [Heading]

rr_BarChartHeading

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

Annual Return 2017

rr_AnnualReturn2017

1.07%

^[102]

Year to Date Return, Label

rr_YearToDateReturnLabel

Total return for the period 1/1/18 through 9/30/18 was 1.40%.

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2018

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

1.40%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter:

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Dec. 31, 2017

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

0.32%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter:

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2016

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

0.16%

Performance Table Heading

rr_PerformanceTableHeading

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

1 Year

rr_AverageAnnualReturnYear01

1.07%

Since Inception

rr_AverageAnnualReturnSinceInception

1.27%

Inception Date

rr_AverageAnnualReturnInceptionDate

Sep. 08, 2016

First American Retail Prime Obligations Fund | Class Y

Prospectus [Line Items]

rr_ProspectusLineItems

Risk/Return [Heading]

rr_RiskReturnHeading

Retail Prime Obligations Fund

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

Retail Prime Obligations Fund’s objective is to seek maximum current income to the extent consistent with the preservation of capital and maintenance of liquidity.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Maximum Sales Charge (Load)

rr_MaximumCumulativeSalesChargeOverOfferingPrice

none

Maximum Deferred Sales Charge (Load)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Management Fees

rr_ManagementFeesOverAssets

0.10%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses: Shareholder Servicing Fee

rr_Component1OtherExpensesOverAssets

0.25%

Other Expenses: Miscellaneous

rr_Component2OtherExpensesOverAssets

0.16%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.51%

Less Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.06%)

^[103]

Net Expenses

rr_NetExpensesOverAssets

0.45%

^[103]

Expense Example [Heading]

rr_ExpenseExampleHeading

Example:

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 46

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

158

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

279

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 635

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Retail Prime Obligations Fund invests in high-quality short-term debt obligations, including:

● commercial paper;

● U.S. dollar-denominated obligations of domestic and foreign banks with total assets of at least $500 million (including fixed and variable rate certificates of deposit, time deposits, and bankers’ acceptances);

● non-convertible corporate debt securities;

● securities issued by the U.S. government or one of its agencies or instrumentalities;

● municipal securities, including variable rate demand notes, commercial paper, and municipal notes and other short-term municipal obligations;

● loan participation interests; and

● repurchase agreements.

The fund concentrates its investments in the banking industry. Therefore, under normal market conditions, the fund will invest more than 25% of its total assets in securities issued by companies in the banking industry. The fund may, however, invest 25% or less of its total assets in this industry as a temporary defensive measure.

The advisor will only purchase (and hold) securities that it determines present minimal credit risk. If a security is no longer determined to present minimal credit risk, the advisor will make every attempt to sell the security, unless it has determined that it would not be in the best interest of the fund to dispose of the security at that time and, where necessary, has obtained the approval of the fund’s board of directors to continue to hold the security.

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. The fund may impose a fee upon sale of your shares or may temporarily suspend your ability to sell shares if the fund’s liquidity falls below required minimums because of market conditions or other factors. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Banking Industry Risk — An adverse development in the banking industry (domestic or foreign) may affect the value of the fund’s investments more than if the fund were not invested to such a degree in the banking industry. Banks may be particularly susceptible to certain economic factors such as interest rate changes, adverse developments in the real estate market, fiscal, regulatory and monetary policy and general economic cycles.

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Foreign Security Risk — Securities of foreign issuers, even when dollar denominated and publicly traded in the United States, may involve risks not associated with the securities of domestic issuers. Uncertainty surrounding the sovereign debt of several European Union countries, as well as the continued existence of the European Union itself, has disrupted and may continue to disrupt markets in the United States and around the world. If a country changes its currency or leaves the European Union or if the European Union dissolves, the world’s securities markets likely will be significantly disrupted.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security, or a liquidity provider defaults on its obligation to purchase the security when properly tendered by the fund.

Municipal Security Risk — The value of municipal securities owned by the fund may be adversely affected by future changes in federal income tax laws, including rate reductions or the imposition of a flat tax, and adverse changes in the financial conditions of municipal securities issuers.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the securities purchased and may experience losses if the proceeds from the sale of the securities are less than the full repurchase price.

Variable Rate Demand Note (VRDN) Risk — Investments in VRDNs involve credit risk with respect to the issuer or financial institution providing the fund with the credit and liquidity support for the unconditional put option.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Fund Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www.firstamericanfunds.com or by calling 800 677-3863.

The bar chart and table show the fund’s performance for the most recent calendar year.

Bar Chart [Heading]

rr_BarChartHeading

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

Annual Return 2017

rr_AnnualReturn2017

0.76%

^[104]

Year to Date Return, Label

rr_YearToDateReturnLabel

Total return for the period 1/1/18 through 9/30/18 was 1.17%.

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2018

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

1.17%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter:

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Dec. 31, 2017

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

0.24%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter:

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2016

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

0.08%

Performance Table Heading

rr_PerformanceTableHeading

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

1 Year

rr_AverageAnnualReturnYear01

0.76%

Inception Date

rr_AverageAnnualReturnInceptionDate

Jul. 18, 2016

First American Retail Prime Obligations Fund | Class Z

Prospectus [Line Items]

rr_ProspectusLineItems

Risk/Return [Heading]

rr_RiskReturnHeading

Retail Prime Obligations Fund

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

Retail Prime Obligations Fund’s objective is to seek maximum current income to the extent consistent with the preservation of capital and maintenance of liquidity.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the fund.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Maximum Sales Charge (Load)

rr_MaximumCumulativeSalesChargeOverOfferingPrice

none

Maximum Deferred Sales Charge (Load)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Management Fees

rr_ManagementFeesOverAssets

0.10%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.16%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.26%

Less Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.06%)

^[105]

Net Expenses

rr_NetExpensesOverAssets

0.20%

^[105]

Expense Example [Heading]

rr_ExpenseExampleHeading

Example:

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and the fund’s operating expenses remain the same (except that the example incorporates the fund’s expense limitation arrangements for only the first year of each period presented). You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 20

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

78

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

140

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 325

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Retail Prime Obligations Fund invests in high-quality short-term debt obligations, including:

● commercial paper;

● U.S. dollar-denominated obligations of domestic and foreign banks with total assets of at least $500 million (including fixed and variable rate certificates of deposit, time deposits, and bankers’ acceptances);

● non-convertible corporate debt securities;

● securities issued by the U.S. government or one of its agencies or instrumentalities;

● municipal securities, including variable rate demand notes, commercial paper, and municipal notes and other short-term municipal obligations;

● loan participation interests; and

● repurchase agreements.

The fund concentrates its investments in the banking industry. Therefore, under normal market conditions, the fund will invest more than 25% of its total assets in securities issued by companies in the banking industry. The fund may, however, invest 25% or less of its total assets in this industry as a temporary defensive measure.

The advisor will only purchase (and hold) securities that it determines present minimal credit risk. If a security is no longer determined to present minimal credit risk, the advisor will make every attempt to sell the security, unless it has determined that it would not be in the best interest of the fund to dispose of the security at that time and, where necessary, has obtained the approval of the fund’s board of directors to continue to hold the security.

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. The fund may impose a fee upon sale of your shares or may temporarily suspend your ability to sell shares if the fund’s liquidity falls below required minimums because of market conditions or other factors. An investment in the fund is not a deposit of U.S. Bank National Association and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund’s sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Principal risks of investing in this fund include:

Banking Industry Risk — An adverse development in the banking industry (domestic or foreign) may affect the value of the fund’s investments more than if the fund were not invested to such a degree in the banking industry. Banks may be particularly susceptible to certain economic factors such as interest rate changes, adverse developments in the real estate market, fiscal, regulatory and monetary policy and general economic cycles.

Credit Risk — The value of your investment might decline if the issuer of an obligation held by the fund defaults on the obligation or has its credit rating downgraded.

Cybersecurity Risk — The fund may be subject to operational and informational security risks resulting from breaches in cybersecurity at the fund, the fund’s affiliates or service providers. A cybersecurity breach at an issuer of securities in which the fund invests may cause such securities to lose value.

Foreign Security Risk — Securities of foreign issuers, even when dollar denominated and publicly traded in the United States, may involve risks not associated with the securities of domestic issuers. Uncertainty surrounding the sovereign debt of several European Union countries, as well as the continued existence of the European Union itself, has disrupted and may continue to disrupt markets in the United States and around the world. If a country changes its currency or leaves the European Union or if the European Union dissolves, the world’s securities markets likely will be significantly disrupted.

Income Risk — The level of income you receive from the fund will be affected by movements in short-term interest rates.

Interest Rate Risk — The value of your investment might decline because of a sharp rise in interest rates that causes the value of the fund’s portfolio holdings to fall.

Liquidity Risk — The fund may not be able to sell a security in a timely manner or at a desired price, or may be unable to sell the security at all, because of a lack of demand in the market for the security, or a liquidity provider defaults on its obligation to purchase the security when properly tendered by the fund.

Municipal Security Risk — The value of municipal securities owned by the fund may be adversely affected by future changes in federal income tax laws, including rate reductions or the imposition of a flat tax, and adverse changes in the financial conditions of municipal securities issuers.

Redemption Risk — If there are unexpectedly high redemptions of fund shares, the fund might have to sell portfolio securities prior to their maturity, possibly at a loss.

Regulatory Risk — Changes to monetary policy by the Federal Reserve or other regulatory actions may impact the fund’s operations, universe of potential investment options, and return potential.

Repurchase Agreement Risk — If the seller of a repurchase agreement defaults on its obligation to repurchase securities from the fund, the fund may incur costs in disposing of the securities purchased and may experience losses if the proceeds from the sale of the securities are less than the full repurchase price.

Variable Rate Demand Note (VRDN) Risk — Investments in VRDNs involve credit risk with respect to the issuer or financial institution providing the fund with the credit and liquidity support for the unconditional put option.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Fund Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following bar chart and table provide some indication of the potential risks of investing in the fund. The fund’s past performance is not necessarily an indication of how the fund will perform in the future. Updated performance information is available online at www.firstamericanfunds.com or by calling 800 677-3863.

The bar chart and table show the fund’s performance for the most recent calendar year.

Bar Chart [Heading]

rr_BarChartHeading

ANNUAL TOTAL RETURNS AS OF 12/31 EACH YEAR

Annual Return 2017

rr_AnnualReturn2017

1.01%

^[106]

Year to Date Return, Label

rr_YearToDateReturnLabel

Total return for the period 1/1/18 through 9/30/18 was 1.36%.

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2018

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

1.36%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter:

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Dec. 31, 2017

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

0.30%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter:

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2016

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

0.14%

Performance Table Heading

rr_PerformanceTableHeading

AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/17

1 Year

rr_AverageAnnualReturnYear01

1.01%

Inception Date

rr_AverageAnnualReturnInceptionDate

Jul. 18, 2016

[1] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.75%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[2] Total return for the period 1/1/18 through 9/30/18 was 0.74%.

[3] Most recent quarter with this return during the period of the chart.

[4] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.60%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[5] Total return for the period 1/1/18 through 9/30/18 was 0.85%.

[6] Most recent quarter with this return during the period of the chart.

[7] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.18%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[8] Total return for the period 1/1/18 through 9/30/18 was 0.74%.

[9] *Most recent quarter with this return during the period of the chart.

[10] This table shows the average annual total returns of the fund’s Class A shares. Although Class A and Class P shares would have similar average annual total returns (because all the fund’s shares represent interests in the same portfolio of securities), Class A and Class P average annual total returns would differ to the extent that Class A and Class P are subject to different expenses.

[11] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that the total annual fund operating expenses, after waivers, do not exceed 0.12%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[12] Total return for the period 1/1/18 through 9/30/18 was 0.74%.

[13] Most recent quarter with this return during the period of the chart.

[14] This table shows the average annual total returns of the fund’s Class A shares. Although Class A and Class U shares would have similar average annual total returns (because all the fund’s shares represent interests in the same portfolio of securities), Class A and Class U average annual total returns would differ to the extent that Class A and Class U are subject to different expenses.

[15] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.30%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[16] Total return for the period 1/1/18 through 9/30/18 was 1.08%.

[17] Most recent quarter with this return during the period of the chart.

[18] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.14%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[19] Total return for the period 1/1/18 through 9/30/18 was 1.20%.

[20] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.45%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[21] Total return for the period 1/1/18 through 9/30/18 was 0.96%.

[22] Most recent quarter with this return during the period of the chart.

[23] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.18%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[24] Total return for the period 1/1/18 through 9/30/18 was 1.17%.

[25] Most recent quarter with this return during the period of the chart.

[26] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.40%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[27] Total return for the period 1/1/18 through 9/30/18 was 1.19%.

[28] Most recent quarter with this return during the period of the chart.

[29] Prior to October 14, 2016, the fund was named Prime Obligations Fund.

[30] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.30%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[31] Total return for the period 1/1/18 through 9/30/18 was 1.27%.

[32] Most recent quarter with this return during the period of the chart.

[33] Prior to October 14, 2016, the fund was named Prime Obligations Fund.

[34] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.14%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[35] Total return for the period 1/1/18 through 9/30/18 was 1.39%.

[36] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.45%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[37] Total return for the period 1/1/18 through 9/30/18 was 1.15%.

[38] Most recent quarter with this return during the period of the chart.

[39] Prior to October 14, 2016, the fund was named Prime Obligations Fund.

[40] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.20%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019, at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[41] Total return for the period 1/1/18 through 9/30/18 was 1.38%.

[42] Most recent quarter with this return during the period of the chart.

[43] Prior to October 14, 2016, the fund was named Prime Obligations Fund.

[44] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.75%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[45] Total return for the period 1/1/18 through 9/30/18 was 0.45%.

[46] Most recent quarter with this return during the period of the chart.

[47] Prior to October 14, 2016, the fund was named Tax Free Obligations Fund.

[48] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.30%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[49] Total return for the period 1/1/18 through 9/30/18 was 0.79%.

[50] Most recent quarter with this return during the period of the chart.

[51] Prior to October 14, 2016, the fund was named Tax Free Obligations Fund.

[52] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.45%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[53] Total return for the period 1/1/18 through 9/30/18 was 0.68%.

[54] Prior to October 14, 2016, the fund was named Tax Free Obligations Fund.

[55] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.20%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019, at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[56] Total return for the period 1/1/18 through 9/30/18 was 0.87%.

[57] Most recent quarter with this return during the period of the chart.

[58] Prior to October 14, 2016, the fund was named Tax Free Obligations Fund.

[59] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.75%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[60] Total return for the period 1/1/18 through 9/30/18 was 0.74%.

[61] Most recent quarter with this return during the period of the chart.

[62] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.60%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[63] Total return for the period 1/1/18 through 9/30/18 was 0.85%.

[64] Most recent quarter with this return during the period of the chart.

[65] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.18%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019, at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[66] Total return for the period 1/1/18 through 9/30/18 was 0.74%.

[67] Most recent quarter with this return during the period of the chart.

[68] This table shows the average annual total returns of the fund’s Class A shares. Although Class A and Class P shares would have similar average annual total returns (because all the fund’s shares represent interests in the same portfolio of securities), Class A and Class P average annual total returns would differ to the extent that Class A and Class P are subject to different expenses.

[69] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.30%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[70] Total return for the period 1/1/18 through 9/30/18 was 1.08%.

[71] *Most recent quarter with this return during the period of the chart.

[72] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.14%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[73] Total return for the period 1/1/18 through 9/30/18 was 1.20%.

[74] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.45%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[75] Total return for the period 1/1/18 through 9/30/18 was 0.97%

[76] Most recent quarter with this return during the period of the chart.

[77] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.18%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019, at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[78] Total return for the period 1/1/18 through 9/30/18 was 1.17%.

[79] Most recent quarter with this return during the period of the chart.

[80] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.75%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[81] Total return for the period 1/1/18 through 9/30/18 was 0.73%.

[82] Most recent quarter with this return during the period of the chart.

[83] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.60%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[84] Total return for the period 1/1/18 through 9/30/18 was 0.84%.

[85] Most recent quarter with this return during the period of the chart.

[86] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.30%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[87] Total return for the period 1/1/18 through 9/30/18 was 1.07%.

[88] Most recent quarter with this return during the period of the chart.

[89] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.45%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[90] Total return for the period 1/1/18 through 9/30/18 was 0.96%.

[91] Most recent quarter with this return during the period of the chart.

[92] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.20%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019, at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[93] Total return for the period 1/1/18 through 9/30/18 was 1.14%.

[94] Most recent quarter with this return during the period of the chart.

[95] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.75%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[96] Total return for the period 1/1/18 through 9/30/18 was 0.94%.

[97] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.40%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[98] Total return for the period 1/1/18 through 9/30/18 was 1.21%.

[99] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.30%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[100] Total return for the period 1/1/18 through 9/30/18 was 1.28%.

[101] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.14%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[102] Total return for the period 1/1/18 through 9/30/18 was 1.40%.

[103] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.45%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019 at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[104] Total return for the period 1/1/18 through 9/30/18 was 1.17%.

[105] The advisor has contractually agreed to waive fees and reimburse other fund expenses through October 31, 2019, so that total annual fund operating expenses, after waivers, do not exceed 0.20%. These fee waivers and expense reimbursements may be terminated at any time after October 31, 2019, at the discretion of the advisor. Prior to that time, such waivers and reimbursements may not be terminated without the approval of the fund’s board of directors.

[106] Total return for the period 1/1/18 through 9/30/18 was 1.36%.