Fair Value of Financial Instruments (Schedule of Remaining Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Jun. 30, 2020
Assets:
Deferred compensation plan investments, current and non-current portion	$ 31,200	$ 27,200
Liabilities:
Deferred compensation plan investments, current and non-current portion	31,200	27,200
Fair Value, Recurring
Assets:
Deferred compensation plan investments, current and non-current portion	31,168	27,159
Foreign currency hedge	187
Total assets at fair value	31,355	27,159
Liabilities:
Deferred compensation plan investments, current and non-current portion	31,168	27,159
Liability for contingent consideration		46,334
Total liabilities at fair value	37,453	82,952
Forward foreign currency exchange contracts \| Fair Value, Recurring
Liabilities:
Derivative Liability	5	26
Interest rate swap agreement \| Fair Value, Recurring
Liabilities:
Derivative Liability	6,280	9,433
Quoted prices in active markets (Level 1) \| Fair Value, Recurring
Assets:
Deferred compensation plan investments, current and non-current portion	31,168	27,159
Foreign currency hedge	0
Total assets at fair value	31,168	27,159
Liabilities:
Deferred compensation plan investments, current and non-current portion	31,168	27,159
Liability for contingent consideration		0
Total liabilities at fair value	31,168	27,159
Quoted prices in active markets (Level 1) \| Forward foreign currency exchange contracts \| Fair Value, Recurring
Liabilities:
Derivative Liability	0	0
Quoted prices in active markets (Level 1) \| Interest rate swap agreement \| Fair Value, Recurring
Liabilities:
Derivative Liability	0	0
Significant other observable inputs (Level 2) \| Fair Value, Recurring
Assets:
Deferred compensation plan investments, current and non-current portion	0	0
Foreign currency hedge	187
Total assets at fair value	187	0
Liabilities:
Deferred compensation plan investments, current and non-current portion	0	0
Liability for contingent consideration		0
Total liabilities at fair value	6,285	9,459
Significant other observable inputs (Level 2) \| Forward foreign currency exchange contracts \| Fair Value, Recurring
Liabilities:
Derivative Liability	5	26
Significant other observable inputs (Level 2) \| Interest rate swap agreement \| Fair Value, Recurring
Liabilities:
Derivative Liability	6,280	9,433
Significant unobservable inputs (Level 3) \| Fair Value, Recurring
Assets:
Deferred compensation plan investments, current and non-current portion	0	0
Foreign currency hedge	0
Total assets at fair value	0	0
Liabilities:
Deferred compensation plan investments, current and non-current portion	0	0
Liability for contingent consideration		46,334
Total liabilities at fair value	0	46,334
Significant unobservable inputs (Level 3) \| Forward foreign currency exchange contracts \| Fair Value, Recurring
Liabilities:
Derivative Liability	0	0
Significant unobservable inputs (Level 3) \| Interest rate swap agreement \| Fair Value, Recurring
Liabilities:
Derivative Liability	$ 0	$ 0

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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