Restructuring and Asset Impairment Charges Employee Separation and Other Cash Charges (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Restructuring Reserve [Roll Forward]
Beginning balance		$ 397	$ 668	$ 1,960
Period charges		8,618	2,275	(55)
Payments through March 31		(928)	(2,546)	(1,237)
Ending balance	$ 397	8,087	397	668
Non-cash charges	819	500	2,836	0
North America [Member]
Restructuring Reserve [Roll Forward]
Beginning balance		0	8	49
Period charges		0	147	0
Payments through March 31		0	(155)	(41)
Ending balance	0	0	0	8
Non-cash charges		500
Other regions [Member]
Restructuring Reserve [Roll Forward]
Beginning balance		397	660	1,911
Period charges		8,618	2,128	(55)
Payments through March 31		(928)	(2,391)	(1,196)
Ending balance	$ 397	$ 8,087	397	$ 660
Non-cash charges			$ 2,836