Label

Element

Value

First Eagle High Yield Fund

Risk/Return:

rr_RiskReturnAbstract

Supplement [Text Block]

cik0000906352_SupplementTextBlock

Fees and Expenses of the High Yield Fund

The following information describes the fees and expenses you may pay if you buy and hold shares of the High Yield Fund.

You may qualify for sales charge discounts if you, together with certain related accounts, invest, or agree to invest in the future, at least $100,000 in the High Yield Fund. Information about these and other discounts is available from your financial professional and in the How to Purchase Shares and Public Offering Price of Class A Shares sections on pages 77 and 83, respectively.

	CLASS A			CLASS C		CLASS I
Shareholder Fees (fees paid directly from your investment)
Maximum Sales Charge (Load) on Purchases (as a percentage of public offering price)		4.50			None		None
Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of your purchase or redemption price)		1.00	*		1.00		None
Annual Fund Operating Expenses (expenses you pay each year as a percentage of the value of your investment)
Management Fees**		0.70			0.70		0.70
Distribution and/or Service (12b-1) Fees		0.25			1.00		None
Other Expenses		0.18			0.18		0.18
Total Annual Fund Operating Expenses (%)***		1.13			1.88		0.88

*	A contingent deferred sales charge of 1.00% may apply on redemptions of Class A shares made within 18 months following a purchase of $1,000,000 or more without an initial sales charge.
**	The Adviser has agreed to waive its management fee at an annual rate in the amount of 0.05% of the average daily value of the Fund’s net assets for the period January 1, 2015 to February 29, 2016.
***	Expenses shown in the table above (and that form the basis of the expense example on the following page) reflect annual expenses for the Fund’s fiscal year ended October 31, 2013. The methodology for the allocation of certain expenses among the various First Eagle Funds and their share classes is subject to change and will be changed in certain respects effective January 1, 2015. Total expenses shown for some Funds and share classes will decrease or increase. In light of this and the management fee waiver, the total annual operating expenses to which the Fund is subject relative to prior periods are expected to be reduced by approximately 0.01% of the average daily value of the Fund’s net assets, although the effect for individual share classes may vary and a net increase for a particular share class is possible.

Risk/Return [Heading]

rr_RiskReturnHeading

First Eagle High Yield Fund