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Stock-Based Compensation - Restricted Stock Units Incentive Plan (Details) - Restricted Stock Unit and Restricted Stock Award - $ / shares	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Number of Restricted Stock Units and Restricted Stock Awards Outstanding
Total Non-vested Restricted Stock Units and Restricted Stock Awards at beginning of year (in shares)	277,696	226,240	227,154
Granted (in shares)	141,642	168,048	107,321
Vested (in shares)	(93,492)	(112,084)	(103,811)
Forfeited (in shares)	(10,930)	(4,508)	(4,424)
Total Non-vested Restricted Stock Units and Restricted Stock Awards at end of year (in shares)	314,916	277,696	226,240
Weighted Average Grant Date Fair Value
Total Units, Weighted Average Value (in dollars per share)	$ 35.43	$ 29.64	$ 20.84
Granted (in dollars per share)	54.96	37.49	41.63
Vested (in dollars per share)	32.88	26.89	22.98
Forfeited (in dollars per share)	50.24	34.27	25.00
Total Units, Weighted Average Value (in dollars per share)	$ 44.46	$ 35.43	$ 29.64

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Outstanding, Weighted Average Grant Date Fair Value

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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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The number of grants made 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).

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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).

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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