Line of Credit Facility Maximum Borrowing Capacity Accordion Feature

No definition available.

Name:	fele_LineOfCreditFacilityMaximumBorrowingCapacityAccordionFeature
Namespace Prefix:	fele_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

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+ Details

Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

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+ Details

Name:	us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

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+ Details

Name:	us-gaap_LineOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- References

No definition available.

+ Details

Name:	us-gaap_LineOfCreditFacilityAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ References

No definition available.

+ Details

Name:	us-gaap_LineOfCreditFacilityCommitmentFeePercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

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+ Details

Name:	us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The effective interest rate during the reporting period.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityInterestRateDuringPeriod
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

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+ Details

Name:	us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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+ Details

Name:	us-gaap_LongTermDebtPercentageBearingFixedInterestRate
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_ConstructionLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=fele_NewYorkLifeInvestorsLLCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=fele_PrudentialFinancialMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ShortTermDebtTypeAxis=us-gaap_BankOverdraftsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=fele_EuroInterbankOfferRateEURIBORMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

DEBT (Details) - USD ($) $ in Millions		6 Months Ended	12 Months Ended
DEBT (Details) - USD ($) $ in Millions	May 14, 2025	Jun. 30, 2026	Dec. 31, 2025	Sep. 26, 2025	May 13, 2025	May 15, 2024	May 14, 2024	Dec. 31, 2012
Project Bonds
Line of Credit Facility
Debt Instrument, Face Amount								$ 25.0
Debt Instrument, Interest Rate, Stated Percentage								3.60%
Debt Instrument, Interest Rate, Stated Percentage								3.60%
New York Life Investors LLC
Line of Credit Facility
Total borrowing capacity of facility						$ 250.0	$ 200.0
Remaining borrowing capacity		$ 175.0
New York Life Investors LLC \| Senior Notes
Line of Credit Facility
Debt Instrument, Face Amount				$ 75.0
Long-Term Debt, Percentage Bearing Fixed Interest, Percentage Rate				5.01%
Long-Term Debt, Percentage Bearing Fixed Interest, Percentage Rate				5.01%
Prudential Financial
Line of Credit Facility
Total borrowing capacity of facility						$ 250.0	$ 150.0
Remaining borrowing capacity		200.0
Prudential Financial \| Senior Notes
Line of Credit Facility
Debt Instrument, Face Amount				$ 50.0
Long-Term Debt, Percentage Bearing Fixed Interest, Percentage Rate				5.01%
Long-Term Debt, Percentage Bearing Fixed Interest, Percentage Rate				5.01%
Bank Overdrafts
Line of Credit Facility
Total borrowing capacity of facility		20.2	$ 19.7
Outstanding borrowings		1.1	1.5
Remaining borrowing capacity		19.1	18.1
Credit Agreement
Line of Credit Facility
Total borrowing capacity of facility	$ 525.0				$ 475.0
Outstanding borrowings		$ 107.0	$ 30.0
Line of Credit Facility, Interest Rate During Period		4.60%	2.90%
Letters of credit outstanding		$ 6.4	$ 6.4
Remaining borrowing capacity		$ 236.6	$ 313.6
Current borrowing capacity	350.0
Line of Credit Facility Maximum Borrowing Capacity Accordion Feature	175.0				125.0
Line of Credit Facility Maximum Borrowing Capacity Accordion Feature	175.0				$ 125.0
Current borrowing capacity	$ 350.0
Credit Agreement \| Minimum
Line of Credit Facility
Line of Credit Facility, Commitment Fee Percentage	0.10%
Line of Credit Facility, Commitment Fee Percentage	0.10%
Credit Agreement \| Minimum \| Euro Interbank Offer Rate (EURIBOR)
Line of Credit Facility
Debt Instrument, Basis Spread on Variable Rate	1.00%
Debt Instrument, Basis Spread on Variable Rate	1.00%
Credit Agreement \| Maximum
Line of Credit Facility
Line of Credit Facility, Commitment Fee Percentage	0.25%
Line of Credit Facility, Commitment Fee Percentage	0.25%
Credit Agreement \| Maximum \| Euro Interbank Offer Rate (EURIBOR)
Line of Credit Facility
Debt Instrument, Basis Spread on Variable Rate	1.75%
Debt Instrument, Basis Spread on Variable Rate	1.75%