Other Accrued Expenses - Schedule of accrued expenses (Details) - USD ($) $ in Millions	Aug. 31, 2021	May 31, 2021	Aug. 31, 2020
Schedule of accrued expenses [Abstract]
Accrued payroll, payroll taxes and benefits	$ 35.1	$ 32.4	$ 41.4
Accrued bonus and commissions	12.1	23.0	11.8
Returns liability	44.9	45.2	43.1
Accrued other taxes	25.3	31.4	21.4
Accrued advertising and promotions	13.5	12.6	10.8
Other accrued expenses	37.3	57.4	38.1
Total accrued expenses	$ 168.2	$ 202.0	$ 166.6