Share-Based Compensation - Expense by Award Type (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense	$ 14,380	$ 7,932	$ 49,800	$ 18,227
Stock Options and Cash-Based Stock Appreciation Rights
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense	2,154	2,311	6,813	5,093
Restricted Share Awards and Cash-Based Restricted Share Unit Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense	10,327	2,336	35,929	7,135
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	$ 1,899	$ 3,285	$ 7,058	$ 5,999