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Share-Based Compensation - Summary of Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Millions | 12 Months Ended
--- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2017
Number of Awards |  |  |
Exercised (in shares) | (96,514) | (362,571) | (95,089)
Stock options |  |  |
Number of Awards |  |  |
Balance at the beginning of the period (in shares) | 2,223,261 | 2,392,428 | 1,701,502
Granted (in shares) | 124,977 | 252,545 | 907,141
Exercised (in shares) | (96,514) | (362,571) | (95,289)
Forfeited (in shares) | (125,435) | (25,915) | (80,926)
Expired (in shares) |  | (33,226) | (40,000)
Balance at the end of the period (in shares) | 2,126,289 | 2,223,261 | 2,392,428
Number of awards, exercisable (in shares) | 1,258,605 |  |
Weighted Average Exercise Price |  |  |
Balance at the beginning of the period (in dollars per share) | $ 42.88 | $ 42.27 | $ 43.35
Granted (in dollars per share) | 57.92 | 41.27 | 38.98
Exercised (in dollars per share) | 39.93 | 35.70 | 23.21
Forfeited (in dollars per share) | 40.17 | 45.27 | 44.35
Expired (in dollars per share) |  | 63.12 | 55.12
Balance at the end of the period (in dollars per share) | 44.06 | $ 42.88 | $ 42.27
Weighted Average Exercise Price, Exercisable (in dollars per share) | $ 45.66 |  |
Additional disclosures |  |  |
Weighted Average Remaining Contractual Term | 6 years 1 month |  |
Weighted Average Remaining Contractual Term, Exercisable | 5 years 1 month |  |
Aggregate Intrinsic Value | $ 12.4 |  |
Aggregate Intrinsic Value, Exercisable | $ 5.8 |  |

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- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option 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)(1)(iii) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option 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)(1)(iii) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements. + 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)(1)(iv)(4) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding. + 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 -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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