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Share Repurchase (Detail) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 9 Months Ended | 21 Months Ended |  |
--- | --- | --- | --- | --- | ---
Mar. 31, 2020 | Mar. 31, 2019 | Mar. 31, 2020 | Mar. 31, 2019 | Mar. 31, 2020 | Jan. 29, 2020 | Nov. 07, 2018
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |
Total number of share repurchases | 1,164,308 | 1,266,160 | 3,838,275 | 3,631,611 | 6,383,431 |  |
Total cost of share repurchases | $ 36,870 | $ 60,970 | $ 136,889 | $ 176,903 | $ 254,769 |  |
Average price paid per share | $ 31.67 | $ 48.15 | $ 35.66 | $ 48.71 | $ 39.91 |  |
Authorized On January Thirty-One Two-Thousand Twenty [Member] |  |  |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |
Authorized amount for repurchase |  |  |  |  |  | $ 300,000 |
Maximum | Authorized on November 7, 2018 |  |  |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |
Authorized amount for repurchase |  |  |  |  |  |  | $ 300,000
Remaining authorized amount for repurchase | $ 45,200 |  | $ 45,200 |  | $ 45,200 |  |

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