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Share-Based Compensation - Market Stock Units - Additional Information (Detail) - Market stock units outstanding [Member] $ in Millions | 9 Months Ended
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Mar. 31, 2018 USD ($)
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
Potential payout adjustment ratio | 200.00%
Unrecognized share-based compensation cost | $ 16.9
Unrecognized share-based compensation, period for recognition | 1 year 4 months 24 days
Minimum [Member] |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
Potential payout range | 0.00%
Maximum [Member] |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
Potential payout range | 200.00%
Share-based Compensation Award, First Tranche [Member] |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
Vesting period of the underlying awards | 1 year
Vesting percentage of the underlying awards | 33.33%
Share-based Compensation Award, First Tranche [Member] | Maximum [Member] |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
Potential payout range | 100.00%
Share-based Compensation Award, Second Tranche [Member] |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
Vesting period of the underlying awards | 2 years
Vesting percentage of the underlying awards | 33.33%
Share-based Compensation Award, Second Tranche [Member] | Maximum [Member] |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
Potential payout range | 100.00%
Share-based Compensation Award, Third Tranche [Member] |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
Vesting period of the underlying awards | 3 years
Vesting percentage of the underlying awards | 33.33%

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- Definition Potential payout adjustment ratio. + References No definition available. + Details
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- Definition Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Percentage of vesting of share-based compensation awards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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