Goodwill and Other Intangibles - Narrative (Details) - USD ($)	3 Months Ended	9 Months Ended	12 Months Ended
Feb. 28, 2021	Feb. 28, 2021	Feb. 29, 2020	May 31, 2020
Goodwill and Other Intangibles (Details) [Line Items]
Goodwill, Impairment Loss		$ 0	$ 0	$ 0
Amortizable intangible assets acquired		0	1,600,000	1,600,000
Adjustments		$ 500,000	0	0
Useful life		4 years 6 months
Impairment of Intangible Assets (Excluding Goodwill)		$ 0	$ 0	0
U.S. Based Book Business
Goodwill and Other Intangibles (Details) [Line Items]
Amortizable intangible assets acquired				$ 1,600,000
Adjustments	$ 500,000

-- None. No documentation exists for this element. --

No definition available.

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- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Amount of increase (decrease) to assets, excluding financial assets and goodwill, lacking physical substance with a finite life for purchase accounting adjustments.

+ References

No definition available.

+ Details

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- Definition

Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 30
-Section 50
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- Definition

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of an intangible asset (excluding goodwill) to fair value.

+ References

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