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Goodwill and Other Intangibles (Details) - Schedule of estimated amortization expense for intangibles
$ in Millions
May 31, 2017
USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]  
2017 $ 2.0
2018 1.9
2019 1.9
2020 1.6
2021 $ 1.4