Restructuring Costs Restructuring costs (Narrative) (Details) - USD ($) $ in Thousands		3 Months Ended
		Jun. 30, 2015	Jun. 30, 2014
Restructuring Costs [Line Items]
Restructuring and impairment costs	[1]	$ 2,389	$ 0
Restructuring liability		$ 1,700

[1] Restructuring and impairment costs are excluded from segment operating income (loss), but are included in consolidated operating income (loss) in the consolidated statements of income and comprehensive income.