Fair Value Measurements (Details 3) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
SERP obligations [Member]
Fair Value, Liabilities Measured on Nonrecurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at April 1		$ 3,323
Foreign currency translation adjustment		0
Amortization		0
Provisions		0
Activity, payments and other charges, net		(3,323)
Balance at September 30		0
Contingent Consideration [Member]
Fair Value, Liabilities Measured on Nonrecurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at April 1	0
Foreign currency translation adjustment	0
Amortization	0
Provisions	0
Purchases	0
Activity, payments and other charges, net	1,800
Balance at September 30	1,800
Other employee benefits plans obligations [Member]
Fair Value, Liabilities Measured on Nonrecurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at April 1	195	195
Foreign currency translation adjustment	0	0
Amortization	0	0
Provisions	0	0
Purchases	0
Activity, payments and other charges, net	0	0
Balance at September 30	195	195
Restructuring liabilities [Member]
Fair Value, Liabilities Measured on Nonrecurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at April 1	584	6,047
Foreign currency translation adjustment	0	0
Amortization	0	0
Provisions	512	1,213
Purchases	0
Activity, payments and other charges, net	(658)	(5,690)
Balance at September 30	438	1,570
Goodwill [Member]
Fair Value Assets Measured on Nonrecurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at April 1	14,128	15,198
Foreign currency translation adjustments	129	25
Amortization	0	0
Provisions	0	0
Purchases	3,444
Activity, payments and other charges, net	0	0
Balance at September 30	17,701	15,223
Intangible Assets [Member]
Fair Value Assets Measured on Nonrecurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at April 1	11,283	12,444
Foreign currency translation adjustments	0	0
Amortization	(621)	(581)
Provisions	0	0
Purchases	605
Activity, payments and other charges, net	0	0
Balance at September 30	$ 11,267	$ 11,863