Fair Value Measurements - Changes in Fair Value of Level 3 Assets and Liabilities on a Nonrecurring Basis (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
SERP obligations [Member]
Fair Value, Liabilities Measured on Nonrecurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of period	$ 3,323	$ 5,675
Foreign currency translation adjustment	0	0
Realized losses	0	0
Amortization	0	0
Purchases	0	0
Provisions, payments and other charges, net	(3,323)	(2,352)
Balance at end of period	0	3,323
Other employee benefits plans obligations [Member]
Fair Value, Liabilities Measured on Nonrecurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of period	196	421
Foreign currency translation adjustment	0	0
Realized losses	0	0
Amortization	0	0
Purchases	0	0
Provisions, payments and other charges, net	(1)	(225)
Balance at end of period	195	196
Restructuring liabilities [Member]
Fair Value, Liabilities Measured on Nonrecurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of period	6,299	733
Foreign currency translation adjustment	0	0
Realized losses	0	0
Amortization	0	0
Purchases	1,088	11,462
Provisions, payments and other charges, net	(6,803)	(5,896)
Balance at end of period	584	6,299
Goodwill [Member]
Fair Value Assets Measured on Nonrecurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of period	15,198	15,211
Foreign currency translation adjustments	(1,070)	(13)
Realized losses	0	0
Amortization	0	0
Purchases	0	0
Provisions, payments and other charges, net	0	0
Balance at end of period	14,128	15,198
Intangible Assets [Member]
Fair Value Assets Measured on Nonrecurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of period	14,135	22,535
Foreign currency translation adjustments	0	0
Realized losses	(120)	(7,875)
Amortization	(1,986)	(1,532)
Purchases	0	0
Provisions, payments and other charges, net	5,259	1,007
Balance at end of period	$ 17,288	$ 14,135