The amount of gain on investments related to an observable price increase.

No definition available.

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- Definition

The amount of asset impairment and other related charges.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

This item represents an other than temporary decline in value that has been recognized against investments over which we do not have the ability to exercise significant influence.

+ References

No definition available.

+ Details

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- Definition

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 45
-Paragraph 4
-URI https://asc.fasb.org/extlink&oid=126905981&loc=d3e2420-110228

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Period Type:	duration

- References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- References

No definition available.

+ Details

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- Definition

Amount of lease payment to be received by lessor for operating lease in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 30
-Section 50
-Paragraph 12
-URI https://asc.fasb.org/extlink&oid=124258985&loc=SL77919396-209981

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Period Type:	instant

- Definition

Amount of lease payment to be received by lessor for operating lease in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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Period Type:	instant

- Definition

Amount of lease payment to be received by lessor for operating lease in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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Period Type:	instant

- Definition

Amount of lease payment to be received by lessor for operating lease in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

Amount of lease payment to be received by lessor for operating lease in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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

+ Details

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Balance Type:	na
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- Definition

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

No definition available.

+ Details

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Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

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Summary of Significant Accounting Policies - Property, Plant and Equipment and Investments (Details) - USD ($) $ in Millions	12 Months Ended
	May 31, 2023	May 31, 2022	May 31, 2021
Investments
Rotable asset impairment charges	$ 1.0	$ 2.9	$ 9.1
Gain on investments related to an observable price increase	0.9
Impairment loss investments over which we do not have the ability to exercise significant influence	1.0
Future rent due to us under non-cancelable leases
2024	17.7
2025	17.8
2026	15.6
2027	10.4
2028	$ 7.5
Building and improvements \| Minimum
Property, Plant and Equipment
Useful life	10 years
Building and improvements \| Maximum
Property, Plant and Equipment
Useful life	40 years
Equipment \| Minimum
Property, Plant and Equipment
Useful life	3 years
Equipment \| Maximum
Property, Plant and Equipment
Useful life	10 years
Furniture and fixtures \| Minimum
Property, Plant and Equipment
Useful life	3 years
Furniture and fixtures \| Maximum
Property, Plant and Equipment
Useful life	10 years
Capitalized software \| Minimum
Property, Plant and Equipment
Useful life	3 years
Capitalized software \| Maximum
Property, Plant and Equipment
Useful life	10 years
Rotable parts \| Aviation Services
Investments
Rotable asset impairment charges			5.8
Rotable parts \| Contract termination
Investments
Rotable asset impairment charges		2.3
Rotable parts \| Product line exits
Investments
Rotable asset impairment charges		$ 1.0	1.4
Manufacturing facilities \| Expeditionary Services
Investments
Impairment and related charges			$ 2.6