XML 68 R51.htm IDEA: XBRL DOCUMENT
v3.21.2

Segment Information (Tables) | 12 Months Ended
--- | ---
Jun. 30, 2021
Segment Reporting [Abstract] |
Summary of Select Operating Results for Each Reportable Segment | The following table summarizes select operating results for each reportable segment.
|  | For Years Ended |
(In millions) |  | June 30, 2021 |  |  | June 30, 2020 |  |  | June 30, 2019 |
Revenue |  |  |  |  |  |  |  |  |  |  |  |
Medical |  | $ | 155.7 |  |  | $ | 62.6 |  |  | $ | 42.9 |
Industrial |  |  | 455.9 |  |  |  | 415.6 |  |  |  | 397.2 |
Consolidated revenue |  | $ | 611.6 |  |  | $ | 478.2 |  |  | $ | 440.1 |
Segment Income from Operations |  |  |  |  |  |  |  |  |  |  |  |
Medical |  | $ | 6.0 |  |  | $ | 13.9 |  |  | $ | 10.2 |
Industrial |  |  | 81.5 |  |  |  | 59.6 |  |  |  | 55.0 |
Total Segment Income from Operations |  |  | 87.5 |  |  |  | 73.5 |  |  |  | 65.2 |
Corporate and other |  |  | (76.3 | ) |  |  | (50.5 | ) |  |  | (36.4 | )
Consolidated Income from Operations |  | $ | 11.2 |  |  | $ | 23.0 |  |  | $ | 28.8 |
Capital Expenditures |  |  |  |  |  |  |  |  |  |  |  |
Medical |  | $ | 14.2 |  |  | $ | 10.1 |  |  | $ | 8.0 |
Industrial |  |  | 12.2 |  |  |  | 11.4 |  |  |  | 10.4 |
Total operating and reportable segments |  |  | 26.4 |  |  |  | 21.5 |  |  |  | 18.4 |
Corporate and other |  |  | — |  |  |  | 0.4 |  |  |  | 0.8 |
Total Capital Expenditures |  | $ | 26.4 |  |  | $ | 21.9 |  |  | $ | 19.2 |
Depreciation and Amortization |  |  |  |  |  |  |  |  |  |  |  |
Medical |  | $ | 33.3 |  |  | $ | 15.8 |  |  | $ | 15.4 |
Industrial |  |  | 49.7 |  |  |  | 52.2 |  |  |  | 53.7 |
Total operating and reportable segments |  |  | 83.0 |  |  |  | 68.0 |  |  |  | 69.1 |
Corporate and other |  |  | 0.6 |  |  |  | 0.4 |  |  |  | 0.4 |
Total Depreciation and Amortization |  | $ | 83.6 |  |  | $ | 68.4 |  |  | $ | 69.5 |
Summary of Revenue Generated from External Customers by Geographical Regions | The following details revenue and property, plant, and equipment by geographic region. Revenues generated from external customers are attributed to geographic regions through sales from site locations.
|  | Revenues for Year Ended |
(In millions) |  | June 30, 2021 |  |  | June 30, 2020 |  |  | June 30, 2019 |
North America |  |  |  |  |  |  |  |  |  |  |  |
Medical |  | $ | 138.6 |  |  | $ | 57.5 |  |  | $ | 41.0 |
Industrial |  |  | 199.4 |  |  |  | 193.3 |  |  |  | 188.3 |
Total North America |  |  | 338.0 |  |  |  | 250.8 |  |  |  | 229.3 |
Europe |  |  |  |  |  |  |  |  |  |  |  |
Medical |  |  | 17.1 |  |  |  | 5.2 |  |  |  | 1.9 |
Industrial |  |  | 241.5 |  |  |  | 206.2 |  |  |  | 194.9 |
Total Europe |  |  | 258.6 |  |  |  | 211.4 |  |  |  | 196.8 |
Asia Pacific |  |  |  |  |  |  |  |  |  |  |  |
Medical |  |  | — |  |  |  | — |  |  |  | — |
Industrial |  |  | 15.0 |  |  |  | 16.0 |  |  |  | 14.0 |
Total Asia Pacific |  |  | 15.0 |  |  |  | 16.0 |  |  |  | 14.0 |
Total |  | $ | 611.6 |  |  | $ | 478.2 |  |  | $ | 440.1 |
Summary of Revenue by Timing of Recognition | The following details revenue by timing of recognition:
|  | Revenues for Year Ended |
(In millions) |  | June 30, 2021 |  |  | June 30, 2020 |  |  | June 30, 2019 |
Point in time |  | $ | 456.6 |  |  | $ | 337.3 |  |  | $ | 331.1 |
Over time |  |  | 155.0 |  |  |  | 140.9 |  |  |  | 109.0 |
Total revenues |  | $ | 611.6 |  |  | $ | 478.2 |  |  | $ | 440.1 |
Summary of Revenue by Product Category | The following details revenue by product category:
|  | Revenues for Year Ended |
(In millions) |  | June 30, 2021 |  |  | June 30, 2020 |  |  | June 30, 2019 |
Medical segment: |  |  |  |  |  |  |  |  |  |  |  |
Medical |  | $ | 155.7 |  |  | $ | 62.9 |  |  | $ | 42.9 |
Industrial segment: |  |  |  |  |  |  |  |  |  |  |  |
Reactor Safety and Control Systems |  |  | 146.8 |  |  |  | 135.4 |  |  |  | 133.3 |
Radiological Search, Measurement, and Analysis Systems |  |  | 309.1 |  |  |  | 280.2 |  |  |  | 263.9 |
Total revenues |  | $ | 611.6 |  |  | $ | 478.2 |  |  | $ | 440.1 |
Summary of Property Plant and Equipment by Geography | The following details property, plant, and equipment by geography:
|  | Property, Plant, and Equipment, net |
(In millions) |  | As of June 30, 2021 |  |  | As of June 30, 2020 |
North America |  | $ | 47.5 |  |  | $ | 36.5 |
Europe |  |  | 41.1 |  |  |  | 38.6 |
Asia Pacific |  |  | 0.2 |  |  |  | 0.1 |
Total |  | $ | 88.8 |  |  | $ | 75.2 |

X
- Definition Schedule of revenue by timing of recognition [Table text block]. + References No definition available. + Details
Name: | mir_ScheduleOfRevenueByTimingOfRecognitionTableTextBlock
Namespace Prefix: | mir_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of revenue from external customers by geographic areas attributed to the entity's country of domicile and to foreign countries from which the entity derives revenue. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph a -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9038-108599 + Details
Name: | us-gaap_RevenueFromExternalCustomersByGeographicAreasTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of entity-wide revenues from external customers for each product or service or each group of similar products or services if the information is not provided as part of the reportable operating segment information. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9031-108599 + Details
Name: | us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of information concerning material long-lived assets (excluding financial instruments, customer relationships with financial institutions, mortgage and other servicing rights, deferred policy acquisition costs, and deferred taxes assets) located in identified geographic areas and/or the amount of revenue from external customers attributed to that country from which revenue is material. An entity may also provide subtotals of geographic information about groups of countries. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9038-108599 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227 + Details
Name: | us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsByGeographicalAreasTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8813-108599 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8906-108599 + Details
Name: | us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_SegmentReportingAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration