Income Taxes - Valuation Allowance for Deferred Tax Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Annual activities included in the deferred tax valuation allowance
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	$ 3,300	$ 21,700	$ 20,000
Deferred Tax Assets Period of Cumulative Loss for Determination of Full Valuation Allowance	3 years
Deferred Tax Assets, Net	$ 7,390	7,390
Change in net deferred income tax asset (liability)
Balance at the beginning of the period	7,390
Deferred income taxes related to continuing operations	(495)
Deferred Income Taxes Related to Business Combination	(648)
Deferred income taxes related to other comprehensive income	915
Foreign currency translation	(1,585)
Balance at the end of the period	5,577	7,390
Valuation Allowance for Deferred Tax Assets
Annual activities included in the deferred tax valuation allowance
Balance at the beginning of the period	167,594	189,276	169,270
Charge to costs and expenses	4,072	(19,900)	21,515
Deductions	(749)	(1,782)	(1,509)
Balance at the end of the period	$ 170,917	$ 167,594	$ 189,276
Domestic Tax Authority [Member]
Annual activities included in the deferred tax valuation allowance
Other Information Pertaining to Income Taxes	29.0
Foreign Tax Authority [Member]
Annual activities included in the deferred tax valuation allowance
Deferred Tax Assets, Net	$ 1,300
Change in net deferred income tax asset (liability)
Balance at the end of the period	$ 1,300