485BPOS

As filed with the U.S. Securities and Exchange Commission on December 27, 2012

Securities Act File No. 033-13863

Investment Company Act File No. 811-001090

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-1A

REGISTRATION STATEMENT

UNDER

	THE SECURITIES ACT OF 1933	x
	Post-Effective Amendment No. 47	x
	And
REGISTRATION STATEMENT UNDER
	THE INVESTMENT COMPANY ACT OF 1940	x
	Amendment No. 58	x

NOMURA PARTNERS FUNDS, INC.

(Exact Name of Registrant as Specified in Charter)

4 Copley Place, 5th Floor

CPH-0326

Boston, MA 02116

(Address of Principal Executive Offices)(Zip Code)

Registrant’s Telephone Number, including Area Code: 1-800-535-2726

Nomura Partners Funds, Inc. c/o State Street Bank & Trust 4 Copley Place, 5th Floor CPH-0326 Boston, MA 02116	COPY TO: Nora M. Jordan, Esq. Davis Polk & Wardwell LLP 450 Lexington Avenue New York, New York 10017
(Name and Address of Agent for Service)

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

x immediately upon filing pursuant to paragraph (b)

¨ on [date] pursuant to paragraph (b)

¨ 60 days after filing pursuant to paragraph (a)(1)

¨ on [date] pursuant to paragraph (a)(1)

¨ 75 days after filing pursuant to paragraph (a)(2)

¨ on (date) pursuant to paragraph (a)(2) of rule 485

If appropriate, check the following box:

¨ this post-effective amendment designates a new effective date for a previously filed post-effective amendment

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933 and the Investment Company Act of 1940, the Registrant certifies that it meets all of the requirements for effectiveness of this Registration Statement under Rule 485(b) under the Securities Act of 1933, as amended, and has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Portland, and the State of Maine, on the 27^th day of December 2012.

	NOMURA PARTNERS FUNDS, INC.
By:	/s/ Richard J. Berthy
	Richard J. Berthy President and Principal Executive Officer

Pursuant to the requirements of the Securities Act of 1933, this Registration Statement has been signed below by the following persons in the capacities and on the dates indicated.

/s/ Richard J. Berthy	President and Principal Executive Officer	December 27, 2012
Richard J. Berthy
/s/ Cynthia Morse-Griffin	Treasurer and Principal Financial Officer
Cynthia Morse-Griffin
J. Douglas Azar*	Chairman of the Board of Directors
J. Douglas Azar
Lynn S. Birdsong*	Director
Lynn S. Birdsong
Gregory A. Boyko*	Director
Gregory A. Boyko
James A. Firestone*	Director
James A. Firestone

* This filing has been signed by each of the persons so indicated by the undersigned Attorney-in-Fact

/s/ David James
David James	December 27, 2012

EXHIBIT INDEX

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

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	NOMURA PARTNERS FUNDS, INC.
Prospectus Date	rr_ProspectusDate	Dec. 10, 2012
Document Creation Date	dei_DocumentCreationDate	Dec. 10, 2012

XML

High Yield Fund

HIGH YIELD FUND

Investment Objective

The High Yield Fund’s (the “Fund”) investment objective is to achieve current yield and capital growth.

Fees and Expenses of the Fund

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for reduced sales charges if you and your family invest, or agree to invest, a certain amount in Nomura Partners Funds, Inc. (the “Corporation”). More information is available in the “Description of Share Classes” section of the Fund’s Prospectus and in the “Purchase and Redemption of Shares” section of the statement of additional information (“SAI”).

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees High Yield Fund (USD $)	Class A		Class C	Class I
Maximum Sales Charge (Load) imposed on purchases (as a % of the offering price)	3.75%		none	none
Maximum Deferred Sales Charge (Load) for redemptions within one year of purchase (as a % of the offering price)	none	[1]	1.00%	none
Redemption Fee for redemptions within 30 days of purchase (as a % of amount redeemed)	2.00%		2.00%	2.00%
Small Account Fee	20.00		20.00	20.00

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

Annual Fund Operating Expenses High Yield Fund		Class A	Class C	Class I
Management Fees		0.65%	0.65%	0.65%
Distribution and Service (12b-1) Fees		0.25%	1.00%	none
Other Expenses	[1]	0.85%	0.85%	0.85%
Total Annual Fund Operating Expenses		1.75%	2.50%	1.50%
Fee Waiver and Expense Reimbursement	[2]	(0.65%)	(0.65%)	(0.65%)
Total Annual Fund Operating Expenses After Fee Waiver and Reimbursement	[2]	1.10%	1.85%	0.85%

Expense Examples

The Examples are intended to help you compare the cost of investing in the Fund with the cost of investing in other funds. They assume 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, in the first Example, or hold your shares, in the second Example. They also assume that your investment has a 5% return each year and that the Fund’s operating expenses remain the same, except that the Fund’s expenses are reduced during the first year by fee waiver and expense limitation agreement. Although your costs may be higher or lower, based on these assumptions your costs would be:

If you redeemed your Shares

Expense Example High Yield Fund (USD $)	Class A	Class C	Class I
1-Year	483	188	87
3-Year	779	649	342

If you did not redeem your Shares

Expense Example, No Redemption High Yield Fund (USD $)	Class A	Class C	Class I
1-Year	483	188	87
3-Year	779	649	342

Portfolio Turnover

The Fund pays transaction costs when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when you hold Fund shares in a taxable account. These costs, which are not reflected in Annual Fund Operating Expenses or in the Examples illustrated above, affect the Fund’s performance.

Principal Investment Strategies

Under normal circumstances, the Fund will invest at least 80% of its assets in a portfolio of high yield bonds rated below investment grade by Moody’s Investors Services Inc. (“Moody’s”), Standard & Poor’s Rating Services (“S&P”), or Fitch, Inc. (“Fitch”), or, if unrated, determined to be of comparable quality by Nomura Corporate Research and Asset Management Inc. (“NCRAM”).

The Fund defines high yield bonds to include the following (provided they are unrated or rated below investment-grade): bank loans; payment-in-kind securities; deferred payment securities; fixed, variable and floating rate obligations; asset-backed securities; convertible securities; zero-coupon bonds; and debt obligations. The Fund may invest in new issuances of high yield bonds. The Fund may invest in distressed high yield bonds.

NCRAM anticipates that the Fund will be invested in a diversified portfolio of high yield bonds. Maturity is not a consideration in selecting the Fund’s investments. The Fund may engage in active and frequent trading in seeking to achieve its investment objective.

In addition to investing in high yield bonds, NCRAM can invest up to 20% of the Fund’s assets in a wide range of securities, including investment grade bonds, common stock, preferred securities and money market instruments. Up to 20% of the Fund’s assets may be invested in securities not denominated in U.S. dollars. The Fund may invest without limit in U.S. dollar-denominated securities of foreign issuers. The Fund’s foreign investments (U.S. dollar or non-U.S. dollar-denominated) may include companies in, or governments of emerging market countries.

Principal Risks

The Fund cannot guarantee that it will achieve its investment objective. As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. Certain risks related to an investment in the Fund are summarized below.

You should consider an investment in the Fund as a long-term investment. The Fund’s returns will fluctuate over long and short periods.

High Yield Bonds Risk – The Fund’s investment in high yield bonds (also known as junk bonds) will subject the Fund to greater levels of credit and liquidity risks than funds that invest in higher rated securities. While offering greater opportunity for higher yields and capital growth, high yield bonds usually are subject to greater price volatility and may be less liquid than higher rated securities. An economic downturn or period of rising interest rates may adversely affect the market for these securities (see “Inflation Risk” below) and reduce the Fund’s ability to sell these securities (see “Liquidity Risk” below). These securities are considered to be high-risk investments, are speculative with respect to the capacity to pay interest and repay principal (see “Credit/Default Risk” below) and may be issued by companies that are highly leveraged, less creditworthy or financially distressed (see “Distressed Securities Risk” below). These securities are subject to greater risk of loss, greater sensitivity to interest rate and economic changes, valuation difficulties, and a potential lack of a secondary or public market for the securities. The market price of these securities can change suddenly and unexpectedly. You should not invest in the Fund unless you are willing to assume the greater risk associated with high yield bonds.

Inflation (Interest Rate) Risk – Generally, high yield bonds will decrease in value when interest rates rise and increase in value when interest rates decline. Interest rate risk is the risk that the high yield bonds will decline in value because of increases in interest rates. Interest rate changes normally have a greater effect on the prices of longer-term high yield bonds than shorter-term high yield bonds. In addition, during periods of declining interest rates, the issuers of high yield bonds held by the Fund may prepay principal earlier than scheduled, forcing the Fund to reinvest in lower yielding debt securities. This is known as “Prepayment Risk” and may reduce the Fund’s income.

Variable and floating rate securities are less sensitive to market interest rate changes, but may decline in value if their interest rates do not rise as much, or as quickly, as interest rates in general. Conversely, floating rate securities generally will not increase in value if interest rates decline. A decrease in market interest rates may adversely affect the income the Fund receives from such securities and the net asset value of the Fund’s shares.

Credit/Default Risk – Credit risk refers to the possibility that the issuer of a security will not be able to make payments of interest and principal when due. If an issuer fails to pay interest or repay principal, the Fund’s income or share value may be reduced. Changes in an issuer’s credit rating or the market’s perception of an issuer’s creditworthiness may also affect the value of the Fund’s investment in that issuer.

Liquidity Risk – Certain securities that are thinly traded or that otherwise might not be easily disposed in the course of regular trading may be deemed to be illiquid securities. Illiquid securities may trade at a discount from comparable, more liquid investments, and may be subject to wider fluctuations in market value. Also, the Fund may not be able to dispose of illiquid securities when that would be beneficial at a favorable time or price. The Fund may invest up to 15% of its assets in illiquid securities.

Bank Loan Risk – The market for loans may not be highly liquid and the Fund may have difficulty selling them. These investments expose the Fund to the credit risk of the lending financial institutions and the underlying borrowers. Loans, like other high yield obligations, are subject to Inflation Risk, Prepayment Risk and the risk of nonpayment of scheduled interest and/or principal. Nonpayment would result in a reduction of income to the Fund, a reduction in the value of the loan experiencing nonpayment and a potential decrease in the NAV of the Fund. Loans are also subject to “Limited Information Risk” because the amount of public information available with respect to loans will generally be less extensive than that available for rated, registered or exchange-listed securities. As a result, the performance of the Fund and its ability to meet its investment objective is more dependent on the analytical ability of NCRAM than would be the case for a fund that invests primarily in rated, registered or exchange-listed securities.

Equity Securities Risk – The Fund may hold or to a limited extent invest in common stocks, which are a type of equity security that represent an ownership interest in a corporation. Common stocks are subject to greater fluctuations in market value than certain other asset classes as a result of such factors as a company’s business performance, investor perceptions, stock market trends and general economic conditions. The rights of common stockholders are subordinate to all other claims on a company’s assets, including debt holders and preferred stockholders. Therefore, the Fund could lose money if a company in which it invests becomes financially distressed.

Convertible Securities Risk – The market value of a convertible security performs like that of a regular debt security; that is, if market interest rates rise, the value of a convertible security usually falls. In addition, convertible securities are subject to the risk that the issuer will not be able to pay interest or dividends when due, and their market value may change based on changes in the issuer’s credit rating or the market's perception of the issuer's creditworthiness. Since it derives a portion of its value from the common stock into which it may be converted, a convertible security is also subject to the same types of market and issuer risks that apply to the underlying common stock.

Distressed Securities Risk – Investing in distressed securities is speculative and involves significant risks. Distressed securities may be the subject of bankruptcy proceedings or in default as to the repayment of principal and/or interest or rated in the lower rating categories (Ca or lower by Moody’s and CC or lower by S&P or Fitch. Distressed securities frequently do not produce income and may require the Fund to bear certain extraordinary expenses in order to protect and recover its investment.

Preferred Securities Risk – Preferred securities may pay fixed or adjustable rates of return. Preferred securities are subject to issuer-specific and market risks applicable generally to equity securities. In addition, a company's preferred securities generally pay dividends only after the company makes required payments to holders of its bonds and other debt. For this reason, the value of preferred securities will usually react more strongly than bonds and other debt to actual or perceived changes in the company's financial condition or prospects. Preferred securities of smaller companies may be more vulnerable to adverse developments than preferred stock of larger companies.

Currency Risk – When the Fund invests in securities that trade in or receive revenues in foreign (non-U.S.) currencies it will be subject to the risk that those currencies may decline in value relative to the U.S. dollar. As a result, the Fund’s investments in foreign denominated securities may reduce the returns of the Funds.

Foreign Exposure Risk – Foreign investments may be subject to different and, in some cases, less stringent regulatory and disclosure standards than U.S. investments. Also, political concerns, fluctuations in foreign currencies and differences in taxation, trading, settlement, custodial and other operational practices may result in foreign investments being more volatile and less liquid than U.S. investments. Foreign regulatory and fiscal policies may affect the ability to trade securities across markets. In addition, brokerage and transaction costs are generally higher for foreign securities than for U.S. investments.

Emerging Market Risk – Foreign investment risk may be particularly high to the extent that the Fund invests in emerging market securities that are economically tied to countries with developing economies. These securities may involve market, credit, currency, liquidity, legal political and other risks different from, or greater than, the risks of investing in developed foreign countries.

Frequent Trading Risk – Active and frequent trading of securities involves higher expenses, which could affect the Fund’s performance over time. High rates of portfolio turnover could also affect the tax efficiency of the Fund by accelerating the realization of taxable income to shareholders. The Fund’s portfolio turnover rate may be more than 100%.

Market Risk and Selection Risk – Market risk is the risk that one or more markets in which the Fund invests will go down in value, including the possibility that the markets will go down sharply and unpredictably. Selection risk is the risk that the securities selected by NCRAM will underperform the markets, the relevant indices or the securities selected by other funds with similar investment objectives and investment strategies. This means you may lose money.

No operating history

The Fund is a newly organized, diversified, open-end management investment company with no operating history and there can be no assurance that the Fund will grow to or maintain an economically viable size.

For a detailed description of these and other risks of investing in this Fund, please see the “Principal Investment Risks” section in the Prospectus and the “Investment Objectives Policies and Strategies” section in the SAI.

As of the date of this Prospectus, the Fund has not completed a full calendar year of investment operations. When the Fund has completed a full calendar year of operations, this section will include charts that show annual total returns, highest and lowest quarterly returns and average annual total returns (before and after taxes) compared to the Bank of America Merrill Lynch U.S. High Yield Master II Constrained Index, which tracks the performance of below investment grade U.S. dollar-denominated corporate bonds publicly issued in the U.S. domestic market.

[1] No contingent deferred sales charge ("CDSC"), except on purchases over $1,000,000, for which no front-end sales charge was paid, which are subject to a 1% CDSC for redemptions within twelve months of investing.

[1] "Other Expenses" are based on estimated amounts for the current fiscal year.

[2] The Fund's advisor, Nomura Asset Management U.S.A Inc. ("NAM USA"), has contractually agreed to waive its management fee and, if necessary, to reimburse the Fund so that total operating expenses of the Fund are limited to 0.85% (excluding distribution and service (12b-1) fees, interest expense and certain other expenses) until January 28, 2015. Amounts waived or reimbursed in a particular fiscal year may be recaptured by NAM USA within three years of the waiver or reimbursement to the extent that recoupment will not cause the Fund's expenses to exceed any expense limitation in place at the time those expenses were waived. The arrangement may not be terminated prior to January 28, 2015 except by action of the Board of Directors of the Corporation.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	NOMURA PARTNERS FUNDS, INC.
Prospectus Date	rr_ProspectusDate	Dec. 10, 2012
High Yield Fund
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	HIGH YIELD FUND
Objective [Heading]	rr_ObjectiveHeading	Investment Objective
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The High Yield Fund’s (the “Fund”) investment objective is to achieve current yield and capital growth.
Expense [Heading]	rr_ExpenseHeading	Fees and Expenses of the Fund
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for reduced sales charges if you and your family invest, or agree to invest, a certain amount in Nomura Partners Funds, Inc. (the “Corporation”). More information is available in the “Description of Share Classes” section of the Fund’s Prospectus and in the “Purchase and Redemption of Shares” section of the statement of additional information (“SAI”).
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	Shareholder Fees (fees paid directly from your investment)
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)
Fee Waiver or Reimbursement over Assets, Date of Termination	rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination	January 28, 2015
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	Portfolio Turnover
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The Fund pays transaction costs when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when you hold Fund shares in a taxable account. These costs, which are not reflected in Annual Fund Operating Expenses or in the Examples illustrated above, affect the Fund’s performance.
Expenses Deferred Charges [Text Block]	rr_ExpensesDeferredChargesTextBlock	No contingent deferred sales charge (“CDSC”), except on purchases over $1,000,000, for which no front-end sales charge was paid, which are subject to a 1% CDSC for redemptions within twelve months of investing.
Other Expenses, New Fund, Based on Estimates [Text]	rr_OtherExpensesNewFundBasedOnEstimates	"Other Expenses" are based on estimated amounts for the current fiscal year.
Expense Example [Heading]	rr_ExpenseExampleHeading	Expense Examples
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	The Examples are intended to help you compare the cost of investing in the Fund with the cost of investing in other funds. They assume 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, in the first Example, or hold your shares, in the second Example. They also assume that your investment has a 5% return each year and that the Fund’s operating expenses remain the same, except that the Fund’s expenses are reduced during the first year by fee waiver and expense limitation agreement. Although your costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text]	rr_ExpenseExampleByYearCaption	If you redeemed your Shares
Expense Example, No Redemption, By Year, Caption [Text]	rr_ExpenseExampleNoRedemptionByYearCaption	If you did not redeem your Shares
Strategy [Heading]	rr_StrategyHeading	Principal Investment Strategies
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	Under normal circumstances, the Fund will invest at least 80% of its assets in a portfolio of high yield bonds rated below investment grade by Moody’s Investors Services Inc. (“Moody’s”), Standard & Poor’s Rating Services (“S&P”), or Fitch, Inc. (“Fitch”), or, if unrated, determined to be of comparable quality by Nomura Corporate Research and Asset Management Inc. (“NCRAM”). The Fund defines high yield bonds to include the following (provided they are unrated or rated below investment-grade): bank loans; payment-in-kind securities; deferred payment securities; fixed, variable and floating rate obligations; asset-backed securities; convertible securities; zero-coupon bonds; and debt obligations. The Fund may invest in new issuances of high yield bonds. The Fund may invest in distressed high yield bonds. NCRAM anticipates that the Fund will be invested in a diversified portfolio of high yield bonds. Maturity is not a consideration in selecting the Fund’s investments. The Fund may engage in active and frequent trading in seeking to achieve its investment objective. In addition to investing in high yield bonds, NCRAM can invest up to 20% of the Fund’s assets in a wide range of securities, including investment grade bonds, common stock, preferred securities and money market instruments. Up to 20% of the Fund’s assets may be invested in securities not denominated in U.S. dollars. The Fund may invest without limit in U.S. dollar-denominated securities of foreign issuers. The Fund’s foreign investments (U.S. dollar or non-U.S. dollar-denominated) may include companies in, or governments of emerging market countries.
Risk [Heading]	rr_RiskHeading	Principal Risks
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	The Fund cannot guarantee that it will achieve its investment objective. As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. Certain risks related to an investment in the Fund are summarized below. You should consider an investment in the Fund as a long-term investment. The Fund’s returns will fluctuate over long and short periods. High Yield Bonds Risk – The Fund’s investment in high yield bonds (also known as junk bonds) will subject the Fund to greater levels of credit and liquidity risks than funds that invest in higher rated securities. While offering greater opportunity for higher yields and capital growth, high yield bonds usually are subject to greater price volatility and may be less liquid than higher rated securities. An economic downturn or period of rising interest rates may adversely affect the market for these securities (see “Inflation Risk” below) and reduce the Fund’s ability to sell these securities (see “Liquidity Risk” below). These securities are considered to be high-risk investments, are speculative with respect to the capacity to pay interest and repay principal (see “Credit/Default Risk” below) and may be issued by companies that are highly leveraged, less creditworthy or financially distressed (see “Distressed Securities Risk” below). These securities are subject to greater risk of loss, greater sensitivity to interest rate and economic changes, valuation difficulties, and a potential lack of a secondary or public market for the securities. The market price of these securities can change suddenly and unexpectedly. You should not invest in the Fund unless you are willing to assume the greater risk associated with high yield bonds. Inflation (Interest Rate) Risk – Generally, high yield bonds will decrease in value when interest rates rise and increase in value when interest rates decline. Interest rate risk is the risk that the high yield bonds will decline in value because of increases in interest rates. Interest rate changes normally have a greater effect on the prices of longer-term high yield bonds than shorter-term high yield bonds. In addition, during periods of declining interest rates, the issuers of high yield bonds held by the Fund may prepay principal earlier than scheduled, forcing the Fund to reinvest in lower yielding debt securities. This is known as “Prepayment Risk” and may reduce the Fund’s income. Variable and floating rate securities are less sensitive to market interest rate changes, but may decline in value if their interest rates do not rise as much, or as quickly, as interest rates in general. Conversely, floating rate securities generally will not increase in value if interest rates decline. A decrease in market interest rates may adversely affect the income the Fund receives from such securities and the net asset value of the Fund’s shares. Credit/Default Risk – Credit risk refers to the possibility that the issuer of a security will not be able to make payments of interest and principal when due. If an issuer fails to pay interest or repay principal, the Fund’s income or share value may be reduced. Changes in an issuer’s credit rating or the market’s perception of an issuer’s creditworthiness may also affect the value of the Fund’s investment in that issuer. Liquidity Risk – Certain securities that are thinly traded or that otherwise might not be easily disposed in the course of regular trading may be deemed to be illiquid securities. Illiquid securities may trade at a discount from comparable, more liquid investments, and may be subject to wider fluctuations in market value. Also, the Fund may not be able to dispose of illiquid securities when that would be beneficial at a favorable time or price. The Fund may invest up to 15% of its assets in illiquid securities. Bank Loan Risk – The market for loans may not be highly liquid and the Fund may have difficulty selling them. These investments expose the Fund to the credit risk of the lending financial institutions and the underlying borrowers. Loans, like other high yield obligations, are subject to Inflation Risk, Prepayment Risk and the risk of nonpayment of scheduled interest and/or principal. Nonpayment would result in a reduction of income to the Fund, a reduction in the value of the loan experiencing nonpayment and a potential decrease in the NAV of the Fund. Loans are also subject to “Limited Information Risk” because the amount of public information available with respect to loans will generally be less extensive than that available for rated, registered or exchange-listed securities. As a result, the performance of the Fund and its ability to meet its investment objective is more dependent on the analytical ability of NCRAM than would be the case for a fund that invests primarily in rated, registered or exchange-listed securities. Equity Securities Risk – The Fund may hold or to a limited extent invest in common stocks, which are a type of equity security that represent an ownership interest in a corporation. Common stocks are subject to greater fluctuations in market value than certain other asset classes as a result of such factors as a company’s business performance, investor perceptions, stock market trends and general economic conditions. The rights of common stockholders are subordinate to all other claims on a company’s assets, including debt holders and preferred stockholders. Therefore, the Fund could lose money if a company in which it invests becomes financially distressed. Convertible Securities Risk – The market value of a convertible security performs like that of a regular debt security; that is, if market interest rates rise, the value of a convertible security usually falls. In addition, convertible securities are subject to the risk that the issuer will not be able to pay interest or dividends when due, and their market value may change based on changes in the issuer’s credit rating or the market's perception of the issuer's creditworthiness. Since it derives a portion of its value from the common stock into which it may be converted, a convertible security is also subject to the same types of market and issuer risks that apply to the underlying common stock. Distressed Securities Risk – Investing in distressed securities is speculative and involves significant risks. Distressed securities may be the subject of bankruptcy proceedings or in default as to the repayment of principal and/or interest or rated in the lower rating categories (Ca or lower by Moody’s and CC or lower by S&P or Fitch. Distressed securities frequently do not produce income and may require the Fund to bear certain extraordinary expenses in order to protect and recover its investment. Preferred Securities Risk – Preferred securities may pay fixed or adjustable rates of return. Preferred securities are subject to issuer-specific and market risks applicable generally to equity securities. In addition, a company's preferred securities generally pay dividends only after the company makes required payments to holders of its bonds and other debt. For this reason, the value of preferred securities will usually react more strongly than bonds and other debt to actual or perceived changes in the company's financial condition or prospects. Preferred securities of smaller companies may be more vulnerable to adverse developments than preferred stock of larger companies. Currency Risk – When the Fund invests in securities that trade in or receive revenues in foreign (non-U.S.) currencies it will be subject to the risk that those currencies may decline in value relative to the U.S. dollar. As a result, the Fund’s investments in foreign denominated securities may reduce the returns of the Funds. Foreign Exposure Risk – Foreign investments may be subject to different and, in some cases, less stringent regulatory and disclosure standards than U.S. investments. Also, political concerns, fluctuations in foreign currencies and differences in taxation, trading, settlement, custodial and other operational practices may result in foreign investments being more volatile and less liquid than U.S. investments. Foreign regulatory and fiscal policies may affect the ability to trade securities across markets. In addition, brokerage and transaction costs are generally higher for foreign securities than for U.S. investments. Emerging Market Risk – Foreign investment risk may be particularly high to the extent that the Fund invests in emerging market securities that are economically tied to countries with developing economies. These securities may involve market, credit, currency, liquidity, legal political and other risks different from, or greater than, the risks of investing in developed foreign countries. Frequent Trading Risk – Active and frequent trading of securities involves higher expenses, which could affect the Fund’s performance over time. High rates of portfolio turnover could also affect the tax efficiency of the Fund by accelerating the realization of taxable income to shareholders. The Fund’s portfolio turnover rate may be more than 100%. Market Risk and Selection Risk – Market risk is the risk that one or more markets in which the Fund invests will go down in value, including the possibility that the markets will go down sharply and unpredictably. Selection risk is the risk that the securities selected by NCRAM will underperform the markets, the relevant indices or the securities selected by other funds with similar investment objectives and investment strategies. This means you may lose money.
Risk Lose Money [Text]	rr_RiskLoseMoney	As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	No operating history
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The Fund is a newly organized, diversified, open-end management investment company with no operating history and there can be no assurance that the Fund will grow to or maintain an economically viable size. For a detailed description of these and other risks of investing in this Fund, please see the “Principal Investment Risks” section in the Prospectus and the “Investment Objectives Policies and Strategies” section in the SAI. As of the date of this Prospectus, the Fund has not completed a full calendar year of investment operations. When the Fund has completed a full calendar year of operations, this section will include charts that show annual total returns, highest and lowest quarterly returns and average annual total returns (before and after taxes) compared to the Bank of America Merrill Lynch U.S. High Yield Master II Constrained Index, which tracks the performance of below investment grade U.S. dollar-denominated corporate bonds publicly issued in the U.S. domestic market.
Performance One Year or Less [Text]	rr_PerformanceOneYearOrLess	As of the date of this Prospectus, the Fund has not completed a full calendar year of investment operations. When the Fund has completed a full calendar year of operations, this section will include charts that show annual total returns, highest and lowest quarterly returns and average annual total returns (before and after taxes) compared to the Bank of America Merrill Lynch U.S. High Yield Master II Constrained Index, which tracks the performance of below investment grade U.S. dollar-denominated corporate bonds publicly issued in the U.S. domestic market.
High Yield Fund | Class A
Risk/Return:	rr_RiskReturnAbstract
Maximum Sales Charge (Load) imposed on purchases (as a % of the offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	3.75%
Maximum Deferred Sales Charge (Load) for redemptions within one year of purchase (as a % of the offering price)	rr_MaximumDeferredSalesChargeOverOfferingPrice	none	[1]
Redemption Fee for redemptions within 30 days of purchase (as a % of amount redeemed)	rr_RedemptionFeeOverRedemption	2.00%
Small Account Fee	rr_MaximumAccountFee	20.00
Management Fees	rr_ManagementFeesOverAssets	0.65%
Distribution and Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.25%
Other Expenses	rr_OtherExpensesOverAssets	0.85%	[2]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.75%
Fee Waiver and Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	(0.65%)	[3]
Total Annual Fund Operating Expenses After Fee Waiver and Reimbursement	rr_NetExpensesOverAssets	1.10%	[3]
1-Year	rr_ExpenseExampleYear01	483
3-Year	rr_ExpenseExampleYear03	779
1-Year	rr_ExpenseExampleNoRedemptionYear01	483
3-Year	rr_ExpenseExampleNoRedemptionYear03	779
High Yield Fund | Class C
Risk/Return:	rr_RiskReturnAbstract
Maximum Sales Charge (Load) imposed on purchases (as a % of the offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum Deferred Sales Charge (Load) for redemptions within one year of purchase (as a % of the offering price)	rr_MaximumDeferredSalesChargeOverOfferingPrice	1.00%
Redemption Fee for redemptions within 30 days of purchase (as a % of amount redeemed)	rr_RedemptionFeeOverRedemption	2.00%
Small Account Fee	rr_MaximumAccountFee	20.00
Management Fees	rr_ManagementFeesOverAssets	0.65%
Distribution and Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	1.00%
Other Expenses	rr_OtherExpensesOverAssets	0.85%	[2]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	2.50%
Fee Waiver and Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	(0.65%)	[3]
Total Annual Fund Operating Expenses After Fee Waiver and Reimbursement	rr_NetExpensesOverAssets	1.85%	[3]
1-Year	rr_ExpenseExampleYear01	188
3-Year	rr_ExpenseExampleYear03	649
1-Year	rr_ExpenseExampleNoRedemptionYear01	188
3-Year	rr_ExpenseExampleNoRedemptionYear03	649
High Yield Fund | Class I
Risk/Return:	rr_RiskReturnAbstract
Maximum Sales Charge (Load) imposed on purchases (as a % of the offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum Deferred Sales Charge (Load) for redemptions within one year of purchase (as a % of the offering price)	rr_MaximumDeferredSalesChargeOverOfferingPrice	none
Redemption Fee for redemptions within 30 days of purchase (as a % of amount redeemed)	rr_RedemptionFeeOverRedemption	2.00%
Small Account Fee	rr_MaximumAccountFee	20.00
Management Fees	rr_ManagementFeesOverAssets	0.65%
Distribution and Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.85%	[2]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.50%
Fee Waiver and Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	(0.65%)	[3]
Total Annual Fund Operating Expenses After Fee Waiver and Reimbursement	rr_NetExpensesOverAssets	0.85%	[3]
1-Year	rr_ExpenseExampleYear01	87
3-Year	rr_ExpenseExampleYear03	342
1-Year	rr_ExpenseExampleNoRedemptionYear01	87
3-Year	rr_ExpenseExampleNoRedemptionYear03	342

[1] No contingent deferred sales charge ("CDSC"), except on purchases over $1,000,000, for which no front-end sales charge was paid, which are subject to a 1% CDSC for redemptions within twelve months of investing.

[2] "Other Expenses" are based on estimated amounts for the current fiscal year.

[3] The Fund's advisor, Nomura Asset Management U.S.A Inc. ("NAM USA"), has contractually agreed to waive its management fee and, if necessary, to reimburse the Fund so that total operating expenses of the Fund are limited to 0.85% (excluding distribution and service (12b-1) fees, interest expense and certain other expenses) until January 28, 2015. Amounts waived or reimbursed in a particular fiscal year may be recaptured by NAM USA within three years of the waiver or reimbursement to the extent that recoupment will not cause the Fund's expenses to exceed any expense limitation in place at the time those expenses were waived. The arrangement may not be terminated prior to January 28, 2015 except by action of the Board of Directors of the Corporation.

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Document and Entity Information	12 Months Ended
	Dec. 10, 2012
Risk/Return:
Document Type	485BPOS
Document Period End Date	Dec. 10, 2012
Registrant Name	NOMURA PARTNERS FUNDS, INC.
Central Index Key	0000053192
Amendment Flag	false
Document Creation Date	Dec. 10, 2012
Document Effective Date	Dec. 10, 2012
Prospectus Date	Dec. 10, 2012