Label

Element

Value

Risk/Return:

rr_RiskReturnAbstract

Entity Central Index Key

dei_EntityCentralIndexKey

0000809586

HEARTLAND SELECT VALUE FUND (Prospectus Summary) | HEARTLAND SELECT VALUE FUND

Risk/Return:

rr_RiskReturnAbstract

Risk/Return, Heading

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heartland select value fund

Investment Objective, Heading

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INVESTMENT GOAL

Investment Objective, Primary

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The Select Value Fund seeks long-term capital appreciation.

Expense, Heading

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FEES AND EXPENSES OF THE SELECT VALUE FUND

Expense, Narrative

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This table describes the fees and expenses that you may pay if you buy and hold Investor or Institutional Class Shares of the Select Value Fund.

Shareholder Fees, Caption

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Shareholder Fees (fees paid directly from your investment)

Operating Expenses, Caption

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

Portfolio Turnover, Heading

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Portfolio Turnover

Portfolio Turnover

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The Select Value Fund pays transaction costs, such as commissions, 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 Fund shares are held in a taxable account. These costs, which are not reflected in Annual Fund Operating Expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 42% of the average value of its portfolio.

Portfolio Turnover, Rate

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42.00%

Expense Example, Heading

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Example .

Expense Example, Narrative

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This Example is intended to help you compare the cost of investing in the Select Value 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 that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, By Year, Caption

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Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Investment Strategy, Heading

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Principal Investment Strategies of the SELECT VALUE FUND

Investment Strategy, Narrative

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The Select Value Fund invests primarily in a concentrated number (generally 40 to 60) of common stocks of all sizes, selected on a value basis and whose current market prices, in Heartland Advisors, Inc.’s (“Heartland Advisors”) judgment, are undervalued relative to their intrinsic value. They normally have market capitalizations in excess of $500 million at the time of purchase. The median market capitalization of the Fund is expected to fluctuate over time depending on Heartland Advisors’ perceptions of relative valuations, future prospects, and market conditions.

The Fund utilizes Heartland Advisors’ disciplined and time-tested 10 Principles of Value Investing ^TM framework to identify securities with the potential for appreciation and a potential margin of safety to limit downside risk. The 10 Principles of Value Investing™ are: catalyst for recognition, low price in relation to earnings, low price in relation to cash flow, low price in relation to book value, financial soundness, positive earnings dynamics, sound business strategy, capable management and insider ownership, value of the company, and positive technical analysis.

Risk, Heading

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Principal Risks of Investing in the Select Value Fund

Risk, Narrative

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The Select Value Fund is designed for investors who seek long-term capital appreciation from a diversified, actively managed portfolio of stocks of all sizes. It is constructed as a core value holding for investors who can accept the volatility and other investment risks of the broad-based equity markets, but want to manage these risks by investing in companies believed to be undervalued relative to their intrinsic value.

The principal risk of investing in the Select Value Fund is that its share price and investment return will fluctuate, and you could lose money. Additional principal investment risks of the Fund include:

- Management Risk. The ability of the Fund to meet its investment objective is directly related to Heartland Advisors’ investment strategies for the Fund.

- General Market Risk. The market value of a security may move up or down, sometimes rapidly and unpredictably. These fluctuations may cause a security to be worth less than the price originally paid for it, or less than it was worth at an earlier time.

- Equity Market Risk. Common stocks are susceptible to general stock market fluctuations and to volatile increases and decreases in value as market confidence in and perceptions of their issuers change.

- Value-Style Investing Risk. Value stocks can perform differently from the market as a whole and from other types of stocks. Value investments are subject to the risk that their intrinsic value may not be recognized by the broad market.

- SMALLER COMPANY SECURITIES risk. Equity securities of the smaller companies in which the Fund may invest generally involve a higher degree of risk than investments in the broad-based equity markets. The security prices of smaller companies generally are more volatile than those of larger companies, they generally will have less market liquidity, and they may be more likely to be adversely affected by poor economic or market conditions.

- Limited Portfolio Risk . As the Fund invests in a limited number of stocks, a change in the value of any single holding may have a more pronounced effect on the Fund’s net asset value (“NAV”) and performance than would be the case if it held more positions. This generally will increase the volatility of the Fund’s NAV and investment return.

An investment in a Fund is not a deposit of a bank, nor insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other governmental agency. It is not designed to be a complete investment program, and while you may make money, you can also lose money. Each Fund’s share price will fluctuate.

Risk, Lose Money

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The principal risk of investing in the Select Value Fund is that its share price and investment return will fluctuate, and you could lose money.

Bar Chart and Performance Table, Heading

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Past Performance

Performance, Narrative

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The following tables show historical performance of the Select Value Fund and provide some indication of the risks of investing in the Fund. Table I shows how the total returns before taxes for the Fund’s Investor Class Shares have varied from year to year for the past 10 years. Table II shows how the Fund’s average annual total returns compare to those of a securities market index. Performance information for the Institutional Class Shares prior to May 1, 2008 is based on the performance of the Investor Class. Past performance (before and after taxes) does not guarantee future results. Recent performance information for the Fund is available on the Fund’s website at heartlandfunds.com or by calling 1-800-432-7856.

Performance, Information Illustrates Variability of Returns

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The following tables show historical performance of the Select Value Fund and provide some indication of the risks of investing in the Fund.

Performance, Availability Phone Number

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1-800-432-7856

Performance, Availability Website Address

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www.heartlandfunds.com

Performance, Past Does Not Indicate Future

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Past performance (before and after taxes) does not guarantee future results.

Bar Chart, Heading

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TABLE I Select Value Fund - Investor Class Shares - Year-by-Year Total Returns

Bar Chart, Closing

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Best Quarter:	Worst Quarter:
3rd Quarter of 2009….21.79%	4th Quarter of 2008 . . . .- 23.59 %

Performance Table, Heading

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TABLE II Select Value Fund - Average Annual Total Returns [for the periods ended 12/31/14]

Index No Deduction for Fees, Expenses, Taxes

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reflects no deduction for fees, expenses or taxes

Performance Table, Uses Highest Federal Rate

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After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance Table, Not Relevant to Tax Deferred

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Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.

Performance Table, One Class of after Tax Shown

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In addition, after-tax returns are shown only for Investor Class Shares, and after-tax returns for the Institutional Class Shares will vary.

Performance Table, Closing

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After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In addition, after-tax returns are shown only for Investor Class Shares, and after-tax returns for the Institutional Class Shares will vary. The differences in before-tax returns and after-tax returns on distributions and sale of Fund shares are due to adjustments incorporated into the after-tax returns for qualified taxable dividend income and qualifying foreign tax credits.

HEARTLAND SELECT VALUE FUND (Prospectus Summary) | HEARTLAND SELECT VALUE FUND | Russell 3000 Value Index

Risk/Return:

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Average Annual Returns, Label

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Russell 3000 ^® Value Index (reflects no deduction for fees, expenses or taxes)

Average Annual Returns, 1 Year

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12.70%

Average Annual Returns, 5 Years

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15.34%

Average Annual Returns,10 Years

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7.26%

Average Annual Returns, Since Inception

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9.06%

Average Annual Returns, Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 11, 1996

HEARTLAND SELECT VALUE FUND (Prospectus Summary) | HEARTLAND SELECT VALUE FUND | Investor Class Shares

Risk/Return:

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Maximum Sales Charge (Load) Imposed on Purchases

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none

Maximum Deferred Sales Charge (Load)

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none

Maximum Sales Charge (Load) Imposed on Reinvested Distributions

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none

Redemption Fee (as a percentage of the net asset value of any shares that are redeemed or exchanged within 10 days after they were purchased)

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2.00%

Exchange Fee

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none

Management Fees

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0.75%

Distribution (12b-1) Fees

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0.25%

Other Expenses

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0.20%

Total Annual Fund Operating Expenses

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1.20%

Expense Example, with Redemption, 1 Year

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122

Expense Example, with Redemption, 3 Years

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381

Expense Example, with Redemption, 5 Years

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659

Expense Example, with Redemption, 10 Years

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1,453

Annual Return 2005

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13.49%

Annual Return 2006

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16.69%

Annual Return 2007

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4.02%

Annual Return 2008

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(31.23%)

Annual Return 2009

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38.63%

Annual Return 2010

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17.77%

Annual Return 2011

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(6.68%)

Annual Return 2012

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13.06%

Annual Return 2013

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35.07%

Annual Return 2014

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4.07%

Highest Quarterly Return, Label

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Best Quarter:

Highest Quarterly Return, Date

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Sep. 30, 2009

Highest Quarterly Return

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21.79%

Lowest Quarterly Return, Label

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Worst Quarter:

Lowest Quarterly Return, Date

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Dec. 31, 2008

Lowest Quarterly Return

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(23.59%)

Average Annual Returns, Label

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Return Before Taxes

Average Annual Returns, 1 Year

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4.07%

Average Annual Returns, 5 Years

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11.79%

Average Annual Returns,10 Years

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8.65%

Average Annual Returns, Since Inception

rr_AverageAnnualReturnSinceInception

10.71%

Average Annual Returns, Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 11, 1996

HEARTLAND SELECT VALUE FUND (Prospectus Summary) | HEARTLAND SELECT VALUE FUND | Investor Class Shares | After Taxes on Distributions

Risk/Return:

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Average Annual Returns, Label

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Return After Taxes on Distributions

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

1.37%

Average Annual Returns, 5 Years

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10.25%

Average Annual Returns,10 Years

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7.57%

Average Annual Returns, Since Inception

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9.73%

Average Annual Returns, Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 11, 1996

HEARTLAND SELECT VALUE FUND (Prospectus Summary) | HEARTLAND SELECT VALUE FUND | Investor Class Shares | After Taxes on Distributions and Sales

Risk/Return:

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Average Annual Returns, Label

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Return After Taxes on Distributions and Sale of Fund Shares

Average Annual Returns, 1 Year

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4.56%

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

9.43%

Average Annual Returns,10 Years

rr_AverageAnnualReturnYear10

7.10%

Average Annual Returns, Since Inception

rr_AverageAnnualReturnSinceInception

9.06%

Average Annual Returns, Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 11, 1996

HEARTLAND SELECT VALUE FUND (Prospectus Summary) | HEARTLAND SELECT VALUE FUND | Institutional Class Shares

Risk/Return:

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Maximum Sales Charge (Load) Imposed on Purchases

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none

Maximum Deferred Sales Charge (Load)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Maximum Sales Charge (Load) Imposed on Reinvested Distributions

rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther

none

Redemption Fee (as a percentage of the net asset value of any shares that are redeemed or exchanged within 10 days after they were purchased)

rr_RedemptionFeeOverRedemption

2.00%

Exchange Fee

rr_ExchangeFee

none

Management Fees

rr_ManagementFeesOverAssets

0.75%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

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0.13%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.88%

Expense Example, with Redemption, 1 Year

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90

Expense Example, with Redemption, 3 Years

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281

Expense Example, with Redemption, 5 Years

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487

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

1,083

Average Annual Returns, Label

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Return Before Taxes

Average Annual Returns, 1 Year

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4.40%

Average Annual Returns, 5 Years

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12.14%

Average Annual Returns,10 Years

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8.89%

Average Annual Returns, Since Inception

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10.84%

Average Annual Returns, Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 11, 1996