Note 15. Subsequent EventOn November 9, 2020, the Company's Executive Vice President, Corporate Development and President, Digital Student Solutions resigned as an officer of the Company, effective as of November 30, 2020, in conjunction with the consolidation and elimination of the role. In connection with the resignation and resignation letter agreement, the former officer will receive a lump sum payment totaling $1,142. For additional information, see the Form 8-K filed with the SEC on November 12, 2020.

Subsequent Events (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
Subsequent Events (Details) - USD ($) $ in Thousands	Oct. 31, 2020	Oct. 26, 2019	Oct. 31, 2020	Oct. 26, 2019
Subsequent Event [Line Items]
Restructuring and other charges	$ 3,387	$ 1,569	$ 9,058	$ 3,035
Subsequent Events			Note 15. Subsequent EventOn November 9, 2020, the Company's Executive Vice President, Corporate Development and President, Digital Student Solutions resigned as an officer of the Company, effective as of November 30, 2020, in conjunction with the consolidation and elimination of the role. In connection with the resignation and resignation letter agreement, the former officer will receive a lump sum payment totaling $1,142. For additional information, see the Form 8-K filed with the SEC on November 12, 2020.
Special Termination Benefits [Member]
Subsequent Event [Line Items]
Restructuring and other charges			$ 1,142