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Commitments and Contingencies	9 Months Ended
Commitments and Contingencies	Jan. 31, 2018
Commitments and Contingencies
Commitments and Contingencies	9. Commitments and Contingencies The Company is a defendant in various lawsuits and administrative actions associated with personal injuries, claims of former employees, and other events arising in the normal course of business. As discussed in Note 1 “—Insurance Liabilities”, the Company records liabilities for these claims, and assets for amounts recoverable from the insurer, for these claims covered by insurance.