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Fair Value Measurements (Details) - USD ($) | 3 Months Ended |
--- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Mar. 31, 2018
Forward Foreign Currency Exchange Contracts [Member] |  |  |
Other current liabilities [Abstract] |  |  |
Net gain (loss) on forward foreign currency exchange contracts | $ (2,666,000) | $ 1,052,000 |
Recurring [Member] |  |  |
Short-term investments [Abstract] |  |  |
Mutual funds | 3,053,000 |  | $ 2,828,000
Prepaid expenses and other current assets [Abstract] |  |  |
Forward foreign currency exchange contracts | 0 |  | 1,179,000
Other current liabilities [Abstract] |  |  |
Forward foreign currency exchange contracts | 1,487,000 |  | 0
Deferred compensation | 3,053,000 |  | 2,828,000
Recurring [Member] | Level 1 [Member] |  |  |
Short-term investments [Abstract] |  |  |
Mutual funds | 3,053,000 |  | 2,828,000
Prepaid expenses and other current assets [Abstract] |  |  |
Forward foreign currency exchange contracts | 0 |  | 0
Other current liabilities [Abstract] |  |  |
Forward foreign currency exchange contracts | 0 |  | 0
Deferred compensation | 3,053,000 |  | 2,828,000
Recurring [Member] | Level 2 [Member] |  |  |
Short-term investments [Abstract] |  |  |
Mutual funds | 0 |  | 0
Prepaid expenses and other current assets [Abstract] |  |  |
Forward foreign currency exchange contracts | 0 |  | 1,179,000
Other current liabilities [Abstract] |  |  |
Forward foreign currency exchange contracts | 1,487,000 |  | 0
Deferred compensation | 0 |  | 0
Recurring [Member] | Level 3 [Member] |  |  |
Short-term investments [Abstract] |  |  |
Mutual funds | 0 |  | 0
Prepaid expenses and other current assets [Abstract] |  |  |
Forward foreign currency exchange contracts | 0 |  | 0
Other current liabilities [Abstract] |  |  |
Forward foreign currency exchange contracts | 0 |  | 0
Deferred compensation | $ 0 |  | $ 0

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- Definition This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents the amount of deferred compensation liability as of the balance sheet date. + References No definition available. + Details
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- Definition Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4CC -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL109998890-113959 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624171-113959 + Details
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- Definition Fair value portion of asset contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward contracts, and swaps. + References No definition available. + Details
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- Definition 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. + References No definition available. + Details
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- Definition Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258 + Details
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