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Stock-Based Compensation (Additional Information) (Detail) | 9 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2020 USD ($) item $ / shares shares | Mar. 31, 2019 USD ($) $ / shares | Jun. 30, 2019 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Total intrinsic value of options exercised | $ | $ 900,000 | $ 4,200,000 |
Total pre-tax unrecognized compensation costs related to non-vested awards | $ | $ 21,800,000 |  |
Total pre-tax unrecognized compensation costs related to non-vested awards expected to be recognized, years | 2 years 4 months 24 days |  |
Total fair value of options and Restricted Stock Units vested | $ | $ 13,500,000 | 13,700,000 |
Share-based Payment Arrangement, Amount Capitalized | $ | $ 0 | $ 0 | $ 0
Stock Incentive Plans |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Share-based compensation arrangements plans | item | 2 |  |
Weighted average estimated grant date fair values, for options granted at market price, per share | $ / shares | $ 16.98 | $ 20.96 |
Common Stock, Capital Shares Reserved for Future Issuance | shares | 6,655,935 |  |
Stock Incentive Plans | Maximum |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Term of options (in years) | 10 years |  |
Vesting Period (in years) | 5 years |  |
Restricted Stock Units |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value | $ / shares | $ 42.38 | $ 49.57 |
Restricted Stock Units Outstanding, Shares Granted | shares | 408,520 |  |
Performance Based Shares |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Term of options (in years) | 3 years |  |
Restricted Stock Units Outstanding, Shares Granted | shares | 135,660 |  |
Non-Performance Based Shares |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Term of options (in years) | 3 years |  |
Restricted Stock Units Outstanding, Shares Granted | shares | 272,860 |  |
Non-Performance Based Shares | Minimum |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Term of options (in years) | 1 year |  |
Non-Performance Based Shares | Maximum |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Term of options (in years) | 4 years |  |

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- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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