XML 54 R25.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Recently Issued Accounting Standards Recently Issued Accounting Standards (Policies) | 6 Months Ended
--- | ---
Dec. 01, 2018
Revenue from Contracts with Customers [Abstract] |
New Accounting Pronouncements, Policy | Recently Adopted Accounting Standards
Standard |  | Description |  | Effective Date |  | Effect on the Financial Statements or Other Significant Matters
Revenue from Contracts with Customers |  | The standard outlines a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers and supersedes most current revenue recognition guidance, including industry-specific guidance. The core principle of the revenue model is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The standard is designed to create greater comparability for financial statement users across industries and jurisdictions and also requires enhanced disclosures. The standard allows for two adoption methods, a full retrospective or modified retrospective approach. |  | June 3, 2018 |  | The Company adopted the standard effective June 3, 2018 using the modified retrospective method. Refer to Note 3 to the financial statements for further information regarding the adoption of the standard.
Financial Instruments - Overall: Recognition and Measurement of Financial Assets and Financial Liabilities |  | The standard provides guidance for the measurement, presentation and disclosure of financial assets and liabilities. The standard requires entities to measure equity investments that do not result in consolidation and are not accounted for under the equity method at fair value and recognize any change in fair value in net income. The standard does not permit early adoption and at adoption a cumulative-effect adjustment to beginning retained earnings should be recorded. |  | June 3, 2018 |  | The Company adopted the standard effective June 3, 2018 using the modified retrospective method. As a result, the Company reclassified $0.1 million of net gains on mutual fund equity securities, that were formerly classified as available for sale securities before the adoption of the new standard, from Accumulated other comprehensive loss to Retained earnings. The impact of adoption also resulted in certain disclosure changes. Refer to Note 11 of the financial statements for further information.
Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract |  | This update aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. Early adoption is permitted. |  | September 2, 2018 |  | The Company early adopted the standard prospectively effective September 2, 2018. The impacts resulting from adoption did not have an impact on the Company’s Financial Statements.
Recently Adopted Accounting Standards (Continued)
Standard |  | Description |  | Effective Date |  | Effect on the Financial Statements or Other Significant Matters
Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income |  | This update allows for the reclassification to retained earnings of the tax effects stranded in Accumulated Other Comprehensive Income resulting from The Tax Cuts and Jobs Act. Early adoption is permitted. |  | September 2, 2018 |  | The Company early adopted the standard effective September 2, 2018 and reclassified $1.5 million from Accumulated other comprehensive loss to Retained earnings related to the Company’s interest rate swap agreements.
Compensation - Retirement Benefits: Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost |  | This standard changes the rules related to the income statement presentation of the components of net periodic benefit cost for defined benefit pension and other postretirement benefit plans. Under the new guidance, entities must present the service cost component of net periodic benefit cost in the same income statement line items as other employee compensation costs related to services rendered during the period. Other components of net periodic benefit cost will be presented separately from the line items that include the service cost. Early adoption is permitted. |  | June 3, 2018 |  | The Company retrospectively adopted the standard effective June 3, 2018. Prior to adoption, the Company recorded net periodic benefit costs related to its defined benefit pension and post-retirement medical plans within Selling, general and administrative expenses. As a result of adoption, these costs are recorded within Other, net. The Company retrospectively reclassified these costs in the Condensed Consolidated Statements of Comprehensive Income for the period ending September 2, 2017 from Selling, general and administrative to Other, net. Refer to Note 7 of the financial statements for further information.
Recently Issued Accounting Standards Not Yet Adopted
Standard |  | Description |  | Effective Date |  | Effect on the Financial Statements or Other Significant Matters
Derivatives and Hedging: Targeted Improvements to Accounting for Hedging Activities |  | This update amends the hedge accounting recognition and presentation with the objectives of improving the financial reporting of hedging relationships to better portray the economic results of an entity's risk management activities and simplifying the application of hedge accounting. The update expands the strategies eligible for hedge accounting, relaxes the timing requirements of hedge documentation and effectiveness assessments and permits the use of qualitative assessments on an ongoing basis to assess hedge effectiveness. The new guidance also requires new disclosures and presentation. |  | June 2, 2019 |  | The Company is currently evaluating the impact of adopting this guidance.
Leases |  | Under the updated standard a lessee's rights and obligations under most leases, including existing and new arrangements, would be recognized as assets and liabilities, respectively, on the balance sheet. The standard must be adopted under a modified retrospective approach and early adoption is permitted. |  | June 2, 2019 |  | The standard is expected to have a significant impact on our Consolidated Financial Statements. The Company does not expect the Statement of Comprehensive Income to be significantly impacted. However, the impact to the balance sheet of recording right of use assets and lease liabilities for the Company’s operating leases, as well as the necessary financial statement disclosures, is expected to be significant. The Company has assembled a project team and is working towards implementation of the lease accounting standard.
Measurement of Credit Losses on Financial Instruments |  | This guidance replaces the existing incurred loss impairment model with an expected loss model and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. |  | May 31, 2020 |  | The Company is currently evaluating the impact of adopting this guidance.
Recently Issued Accounting Standards Not Yet Adopted (Continued)
Standard |  | Description |  | Effective Date |  | Effect on the Financial Statements or Other Significant Matters
Disclosure Framework-Changes to the Disclosure Requirements for Fair Value Measurement |  | This update eliminates, adds and modifies certain disclosure requirements for fair value measurements. Early adoption is permitted, and an entity is also permitted to early adopt any removed or modified disclosures and delay adoption of the additional disclosures until their effective date. |  | May 31, 2020 |  | The Company is currently evaluating the impact of adopting this guidance.
Disclosure Framework—Changes to the Disclosure Requirements for Defined Benefit Plans |  | This update eliminates, adds and clarifies certain disclosure requirements for employers that sponsor defined benefit pension or other postretirement plans. Early adoption is permitted. |  | May 30, 2021 |  | The Company is currently evaluating the impact of adopting this guidance.
The Company retrospectively adopted ASU 2017-07 - Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost on June 3, 2018. As the Company's pension and post retirement medical plans are frozen and not open to new plan participants, these plans no longer have a service component in net periodic benefit cost. Prior to adoption, the Company recorded net periodic benefit costs related to its defined benefit pension and post-retirement medical plans within Selling, general and administrative expenses. As a result of adoption, these costs are recorded within Other, net. The Company retrospectively reclassified $0.4 million and $0.8 million of net periodic benefit cost in the Condensed Consolidated Statements of Comprehensive Income for the three and six month periods ended December 2, 2017, respectively, from Selling, general and administrative to Other, net.

X
- Definition Revenue from Contracts with Customers [Abstract] + References No definition available. + Details
Name: | mlhr_RevenuefromContractswithCustomersAbstract
Namespace Prefix: | mlhr_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy pertaining to new accounting pronouncements that may impact the entity's financial reporting. Includes, but is not limited to, quantification of the expected or actual impact. + References No definition available. + Details
Name: | us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration