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, 2017	Jun. 30, 2017
Assets
Deferred compensation plan investments, current and non-current portion	$ 23,893	$ 21,439
Total assets at fair value	24,542	21,495
Liabilities
Deferred compensation plan investments, current and non-current portion	23,893	21,074
Liability for contingent consideration, current and non-current portion	97,031	114,036
Total liabilities at fair value	121,093	135,241
Quoted prices in active markets (Level 1) [Member]
Assets
Deferred compensation plan investments, current and non-current portion	23,893	21,439
Total assets at fair value	23,893	21,439
Liabilities
Deferred compensation plan investments, current and non-current portion	23,893	21,074
Liability for contingent consideration, current and non-current portion	0	0
Total liabilities at fair value	23,893	21,074
Significant other observable inputs (Level 2) [Member]
Assets
Deferred compensation plan investments, current and non-current portion	0	0
Total assets at fair value	649	56
Liabilities
Deferred compensation plan investments, current and non-current portion	0	0
Liability for contingent consideration, current and non-current portion	0	0
Total liabilities at fair value	169	131
Significant unobservable inputs (Level 3) [Member]
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, current and non-current portion	97,031	114,036
Total liabilities at fair value	97,031	114,036
Foreign Exchange Contract [Member]
Assets
Derivative instruments	71	35
Liabilities
Derivative instruments	169	131
Foreign Exchange Contract [Member] \| Quoted prices in active markets (Level 1) [Member]
Assets
Derivative instruments	0	0
Liabilities
Derivative instruments	0	0
Foreign Exchange Contract [Member] \| Significant other observable inputs (Level 2) [Member]
Assets
Derivative instruments	71	35
Liabilities
Derivative instruments	169	131
Foreign Exchange Contract [Member] \| Significant unobservable inputs (Level 3) [Member]
Assets
Derivative instruments	0	0
Liabilities
Derivative instruments	0	0
Interest Rate Swap [Member]
Assets
Derivative instruments	578	21
Interest Rate Swap [Member] \| Quoted prices in active markets (Level 1) [Member]
Assets
Derivative instruments	0	0
Interest Rate Swap [Member] \| Significant other observable inputs (Level 2) [Member]
Assets
Derivative instruments	578	21
Interest Rate Swap [Member] \| Significant unobservable inputs (Level 3) [Member]
Assets
Derivative instruments	$ 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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No definition available.

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Carrying amount as of the balance sheet date of assets held under deferred compensation agreements.

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Fair value, after offset of derivative liability, of financial asset or other 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, before offset against an obligation to return collateral under a master netting arrangement. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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Fair value portion of liability contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward (delivery or nondelivery) contracts, and swaps entered into.

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Fair value of financial and nonfinancial obligations.

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