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Employer Sponsored Benefit Plans | 12 Months Ended
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Apr. 30, 2018
Compensation And Retirement Disclosure [Abstract] |
Employer Sponsored Benefit Plans | 15. Employer Sponsored Benefit Plans Contributory Defined Investment Plan — We offer two contributory defined investment plans covering substantially all employees, subject to service requirements. Employees may contribute up to 100% of their annual pay, depending on the plan. We generally make discretionary matching contributions of up to 50% of the first 6% of employee contributions to the plan. We contributed $3.0 million, $2.7 million, and $2.4 million for the fiscal years ended April 30, 2018, 2017, and 2016, respectively. Non-Contributory Profit Sharing Plan — We have a non-contributory profit sharing plan covering substantially all of our employees. Employees become eligible on May 1 following the completion of a full fiscal year of continuous service. Our contributions to the plan are discretionary. For fiscal 2018, we plan to contribute approximately $1.3 million, which has been recorded in general and administrative costs. We contributed $13.0 million and $11.5 million for the fiscal years ended April 30, 2017 and 2016, respectively. Contributions are funded after the fiscal year-end.

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- Definition The entire disclosure for pension and other postretirement benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -URI http://asc.fasb.org/topic&trid=2235017 + Details
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