Stock-Based Compensation - Annual Performance-Based Awards Granted (Detail)	6 Months Ended
	Dec. 31, 2019 shares
FY2020 PRSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
PRSUs granted	108,844
FY2019 PRSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
PRSUs granted	129,108
Additional PRSUs earned pursuant to condition	5,874
FY2018 PRSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
PRSUs granted	185,056
Additional PRSUs earned pursuant to condition	51,808