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Namespace Prefix:	mlhr_
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- Definition

This element represents the noncurrent portion of a long-term real estate loan to finance building costs. The funds are disbursed as needed or in accordance with a prearranged plan; generally, a portion of the funds is disbursed at inception and the remainder as construction progresses. The money is repaid on completion of the project (generally one to seven years), usually from the proceeds of a mortgage loan. The rate is normally higher than the prime rate, and there is usually an origination fee. The effective yield on these loans tends to be high, and the lender has a security interest in the real property.

+ References

+ Details

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

- Definition

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

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
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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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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of unused borrowing capacity under the long-term financing arrangement that is available to the entity as of the balance sheet date.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
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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.

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Balance Type:	credit
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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Data Type:	xbrli:stringItemType
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.

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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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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of borrowings classified as other, maturing within one year or the normal operating cycle, if longer.

+ References

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The cumulative amount of the reporting entity's undistributed earnings or deficit.

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Namespace Prefix:	us-gaap_
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Balance Type:	credit
Period Type:	instant

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Debt (Details) - USD ($)	12 Months Ended
Debt (Details) - USD ($)	May 30, 2020	Jun. 02, 2019	Jun. 01, 2019
Line of Credit Facility
Interest Coverage	350.00%
Supplier financing program	$ 1,400,000		$ 3,100,000
Finance Leased Assets, Gross			6,700,000
Construction-Type Lease	0		6,900,000
Retained earnings	$ 683,900,000		712,700,000
Minimum
Line of Credit Facility
Leverage Ratio	350.00%
Maximum
Line of Credit Facility
Leverage Ratio	400.00%
Syndicated line of credit
Line of Credit Facility
Line of Credit Facility, Maximum Borrowing Capacity	$ 500,000,000.0		400,000,000.0
Line Of Credit Facility, Increase in Borrowing Capacity	250,000,000		200,000,000
Proceeds from Lines of Credit	265,000,000
Syndicated Revolving Line of Credit, due August 2024	490,000,000.0		225,000,000.0
Line of Credit Facility, Remaining Borrowing Capacity	600,000		165,000,000.0
Letters of credit
Line of Credit Facility
Outstanding letters of credit	9,400,000		$ 10,000,000.0
Debt securities, 6.0%, due March 1, 2021
Line of Credit Facility
Line of Credit Facility, Maximum Borrowing Capacity	150,000,000.0
Debt Instrument, Face Amount	$ 50,000,000.0
Debt Instrument, Interest Rate, Stated Percentage	4.95%
Debt Instrument, Unused Borrowing Capacity, Amount	$ 50,000,000.0
Accounting Standards Update 2016-02
Line of Credit Facility
Retained earnings		$ 0