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Share Repurchase (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Sep. 30, 2019	Sep. 30, 2020	Feb. 04, 2020	Nov. 08, 2018
Equity, Class of Treasury Stock [Line Items]
Total number of share repurchases	918,807
Total cost of share repurchases	$ 40,255
Average price paid per share	$ 43.81
Life-to-Date Current Shares Repurchase Program Total number of share repurchases		6,383,431
Life-to-Date Current Shares Repurchase Program Total cost of share repurchases		$ 254,769
Life-to-Date Current Shares Repurchase Program Average price paid per share		$ 39.91
Authorized On February Fourth Two-Thousand Twenty [Member]
Equity, Class of Treasury Stock [Line Items]
Authorized amount for repurchase			$ 300,000
Maximum
Equity, Class of Treasury Stock [Line Items]
Remaining authorized amount for repurchase		$ 345,200
Maximum | Authorized On November Eighth Two-Thousand Twenty [Member]
Equity, Class of Treasury Stock [Line Items]
Authorized amount for repurchase				$ 300,000

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