Fair Value Measurements (Levels 1-3) (Details) - Recurring basis - USD ($) $ in Thousands	Sep. 30, 2015	Mar. 31, 2015
Fair Value
Assets (Liabilities) at fair value
Nonqualified deferred compensation asset	$ 5,776	$ 5,581
Nonqualified deferred compensation liability	(6,206)	(5,581)
Contingent consideration for acquisition of business	(23,000)	(26,000)
Level 1
Assets (Liabilities) at fair value
Nonqualified deferred compensation asset	5,776	5,581
Nonqualified deferred compensation liability	(6,206)	(5,581)
Contingent consideration for acquisition of business	0	0
Level 2
Assets (Liabilities) at fair value
Nonqualified deferred compensation asset	0	0
Nonqualified deferred compensation liability	0	0
Contingent consideration for acquisition of business	0	0
Level 3
Assets (Liabilities) at fair value
Nonqualified deferred compensation asset	0	0
Nonqualified deferred compensation liability	0	0
Contingent consideration for acquisition of business	(23,000)	(26,000)
Designated as Hedging Instrument \| Fair Value
Assets (Liabilities) at fair value
Designated derivatives asset	106
Derivatives liability	(1,252)	(487)
Designated as Hedging Instrument \| Level 1
Assets (Liabilities) at fair value
Designated derivatives asset	0
Derivatives liability	0	0
Designated as Hedging Instrument \| Level 2
Assets (Liabilities) at fair value
Designated derivatives asset	106
Derivatives liability	(1,252)	(487)
Designated as Hedging Instrument \| Level 3
Assets (Liabilities) at fair value
Designated derivatives asset	0
Derivatives liability	0	$ 0
Non-designated derivatives \| Fair Value
Assets (Liabilities) at fair value
Derivatives liability	(255)
Non-designated derivatives \| Level 1
Assets (Liabilities) at fair value
Derivatives liability	0
Non-designated derivatives \| Level 2
Assets (Liabilities) at fair value
Derivatives liability	(255)
Non-designated derivatives \| Level 3
Assets (Liabilities) at fair value
Derivatives liability	$ 0

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

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 35

-Paragraph 1

-Subparagraph b

-URI http://asc.fasb.org/extlink&oid=6911338&loc=d3e6819-128478

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 25

-Paragraph 6

-URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6408-128476

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+ References

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+ References

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 as of the balance sheet date of all foreign currency derivative assets designated as cash flow hedging instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4B

-Subparagraph (c)(1)

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