Fair Value of Financial Instruments (Schedule of Remaining Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Jun. 30, 2020
Assets:
Deferred compensation plan investments, current and non-current portion	$ 31,519	$ 27,159
Total assets at fair value	31,519	27,159
Liabilities:
Deferred compensation plan investments, current and non-current portion	31,519	27,159
Liability for contingent consideration		46,334
Total liabilities at fair value	40,031	82,952
Quoted prices in active markets (Level 1)
Assets:
Deferred compensation plan investments, current and non-current portion	31,519	27,159
Total assets at fair value	31,519	27,159
Liabilities:
Deferred compensation plan investments, current and non-current portion	31,519	27,159
Liability for contingent consideration		0
Total liabilities at fair value	31,519	27,159
Significant other observable inputs (Level 2)
Assets:
Deferred compensation plan investments, current and non-current portion	0	0
Total assets at fair value	0	0
Liabilities:
Deferred compensation plan investments, current and non-current portion	0	0
Liability for contingent consideration		0
Total liabilities at fair value	8,512	9,459
Significant unobservable inputs (Level 3)
Assets:
Deferred compensation plan investments, current and non-current portion	0	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
Foreign exchange contracts
Liabilities:
Derivative liability	23	26
Foreign exchange contracts \| Quoted prices in active markets (Level 1)
Liabilities:
Derivative liability	0	0
Foreign exchange contracts \| Significant other observable inputs (Level 2)
Liabilities:
Derivative liability	23	26
Foreign exchange contracts \| Significant unobservable inputs (Level 3)
Liabilities:
Derivative liability	0	0
Interest rate swap agreement
Liabilities:
Derivative liability	8,489	9,433
Interest rate swap agreement \| Quoted prices in active markets (Level 1)
Liabilities:
Derivative liability	0	0
Interest rate swap agreement \| Significant other observable inputs (Level 2)
Liabilities:
Derivative liability	8,489	9,433
Interest rate swap agreement \| Significant unobservable inputs (Level 3)
Liabilities:
Derivative liability	$ 0	$ 0

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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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Amount of liability recognized arising from contingent consideration in a business combination.

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Aggregate carrying value as of the balance sheet date of the liabilities for all deferred compensation arrangements. Represents currently earned compensation under compensation arrangements that is not actually paid until a later date.

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Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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Fair value of financial and nonfinancial obligations.

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