Fair Value Measurements (Levels 1-3) (Details) - Recurring basis - USD ($) $ in Thousands	Dec. 31, 2015	Mar. 31, 2015
Fair value
Assets (Liabilities) at fair value
Nonqualified deferred compensation asset	$ 6,007	$ 5,581
Nonqualified deferred compensation liability	(6,501)	(5,581)
Contingent consideration for acquisition of business	(20,300)	(26,000)
Level 1
Assets (Liabilities) at fair value
Nonqualified deferred compensation asset	6,007	5,581
Nonqualified deferred compensation liability	(6,501)	(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	(20,300)	(26,000)
Designated as hedging instrument \| Fair value
Assets (Liabilities) at fair value
Designated derivatives asset	1,600
Derivatives liability	(524)	(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	1,600
Derivatives liability	(524)	(487)
Designated as hedging instrument \| Level 3
Assets (Liabilities) at fair value
Designated derivatives asset	0
Derivatives liability	$ 0	$ 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)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

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)
-URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624163-113959

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

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