Fair Value of Financial Instruments (Short-term Investments and Financial Instruments at Fair Value) (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Jun. 30, 2016
Assets:
Deferred compensation plan investments, current and non-current portion	$ 21,439	$ 17,893
Total assets at fair value	21,495	17,926
Liabilities:
Deferred compensation plan investments, current and non-current portion	21,074	17,893
Forward foreign currency exchange contracts	131	551
Liability for contingent consideration, current and non-current	114,036	24,652
Total liabilities at fair value	135,241	43,096
Quoted Prices in Active Markets (Level 1) [Member]
Assets:
Deferred compensation plan investments, current and non-current portion	21,439	17,893
Total assets at fair value	21,439	17,893
Liabilities:
Deferred compensation plan investments, current and non-current portion	21,074	17,893
Forward foreign currency exchange contracts	0	0
Liability for contingent consideration, current and non-current	0	0
Total liabilities at fair value	21,074	17,893
Significant Other Observable Inputs (Level 2) [Member]
Assets:
Deferred compensation plan investments, current and non-current portion	0	0
Total assets at fair value	56	33
Liabilities:
Deferred compensation plan investments, current and non-current portion	0	0
Forward foreign currency exchange contracts	131	551
Liability for contingent consideration, current and non-current	0	0
Total liabilities at fair value	131	551
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
Forward foreign currency exchange contracts	0	0
Liability for contingent consideration, current and non-current	114,036	24,652
Total liabilities at fair value	114,036	24,652
Foreign Exchange Contract [Member]
Assets:
Forward foreign currency exchange contracts	35	33
Foreign Exchange Contract [Member] \| Quoted Prices in Active Markets (Level 1) [Member]
Assets:
Forward foreign currency exchange contracts	0	0
Foreign Exchange Contract [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Assets:
Forward foreign currency exchange contracts	35	33
Foreign Exchange Contract [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Assets:
Forward foreign currency exchange contracts	0	0
Interest Rate Swap [Member]
Assets:
Forward foreign currency exchange contracts	21	0
Interest Rate Swap [Member] \| Quoted Prices in Active Markets (Level 1) [Member]
Assets:
Forward foreign currency exchange contracts	0	0
Interest Rate Swap [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Assets:
Forward foreign currency exchange contracts	21	0
Interest Rate Swap [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Assets:
Forward foreign currency exchange contracts	$ 0	$ 0

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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
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Amount of liability recognized arising from contingent consideration in a business combination.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
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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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Carrying amount as of the balance sheet date of assets held under deferred compensation agreements.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.17)
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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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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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