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Equity Acquisition and Business Combination - Narrative (Details) £ in Millions, $ in Millions					3 Months Ended
	Aug. 31, 2021 GBP (£)	Aug. 31, 2021 USD ($)	Mar. 01, 2020 GBP (£)	Mar. 01, 2020 USD ($)	Mar. 31, 2021 USD ($)	Mar. 31, 2020 USD ($)	Mar. 01, 2020 USD ($)	Jul. 01, 2018
HFML
Business Acquisition [Line Items]
Additional equity interests acquired	29.50%	29.50%
Purchase price for acquisition of additional equity	£ 116.5	$ 160.2
Ownership interest acquired								60.00%
Percentage of equity interests held In employee benefit trust	10.00%	10.00%
HCL
Business Acquisition [Line Items]
Ownership interest acquired			100.00%				100.00%
Acquisition price			£ 15.9	$ 20.4
Payments to acquire business			11.2	14.3
Maximum contingent purchase price payments			£ 3.5				$ 4.5
Business combination, provisional information adjustments, assets					$ 25.8
Business combination, provisional information adjustments, liabilities					17.2
Business combination, provisional information adjustments, equity interests					8.6
Revenue					6.9
Compensation and related expense					$ 6.9
HGPE
Business Acquisition [Line Items]
Acquisition-date fair value of previous equity interest				$ 34.5
Gain as a result of remeasuring prior equity interest						$ 7.5

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Percentage of voting equity interests acquired at the acquisition date in the business combination.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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