Share-Based Compensation - Expense by Award Type (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share based compensation expense	$ 73,827	$ 24,963	$ 19,676
Stock Options and Cash-Based Stock    Appreciation Rights
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share based compensation expense	11,893	6,801	6,605
Restricted Share Awards, Restricted Share    Units, and Cash-Based Restricted Share Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share based compensation expense	49,957	9,242	7,850
Performance Share Awards and Cash    Based Performance Share Unit Awards
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share based compensation expense	$ 11,977	$ 8,920	$ 5,221