Fair Value Measurements (Details 3) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
SERP obligations [Member]
Fair Value, Liabilities Measured on Nonrecurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at April 1	$ 3,323	$ 5,791
Foreign currency translation adjustment	0	0
Amortization	0	0
Purchases	0	0
Provisions, payments and other charges, net	(3,323)	61
Balance at December 31	0	5,852
Other employee benefits plans obligations [Member]
Fair Value, Liabilities Measured on Nonrecurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at April 1	196	305
Foreign currency translation adjustment	0	0
Amortization	0	0
Purchases	0	0
Provisions, payments and other charges, net	0	0
Balance at December 31		305
Restructuring liabilities [Member]
Fair Value, Liabilities Measured on Nonrecurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at April 1	6,299	733
Foreign currency translation adjustment	0	0
Amortization	0	0
Purchases		4,716
Provisions, payments and other charges, net	(6,550)	(998)
Balance at December 31	931	4,451
Goodwill [Member]
Fair Value Assets Measured on Nonrecurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at April 1	15,198	15,211
Foreign currency translation adjustments	(939)	(107)
Amortization	0	0
Purchases	0	0
Provisions, payments and other charges, net	0	0
Balance at December 31	14,259	15,104
Intangible Assets [Member]
Fair Value Assets Measured on Nonrecurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at April 1	14,135	22,535
Foreign currency translation adjustments	0	0
Amortization	(1,621)	(1,532)
Purchases	0	0
Provisions, payments and other charges, net	3,408	959
Balance at December 31	15,922	21,962
Fair Value, Inputs, Level 3 [Member] | Other employee benefits plans obligations [Member]
Fair Value, Liabilities Measured on Nonrecurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at December 31	196
Fair Value, Inputs, Level 3 [Member] | Restructuring liabilities [Member]
Fair Value, Liabilities Measured on Nonrecurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Purchases	$ 1,182