Write Down of Long Lived Assets (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013
Long Lived Assets Held-for-sale [Line Items]
Impairment of Long-Lived Assets to be Disposed of	$ 0	$ 3,358	$ 0	$ 3,358
Solid Capacitors | PORTUGAL
Long Lived Assets Held-for-sale [Line Items]
Impairment of Long-Lived Assets to be Disposed of	2,800
Film and Electrolytic [Member] | Italy
Long Lived Assets Held-for-sale [Line Items]
Impairment of Long-Lived Assets to be Disposed of	$ 600