Income Taxes - Provision (Benefit) For Income Taxes Differences (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Income Tax Contingency [Line Items]
Federal Statutory Income Tax Rate, Amount	$ (10,926)	$ (4,245)	$ (19,704)
Change in Domestic Deferred Tax Assets Valuation Allowance	4,099	(19,691)	21,788
Repatriation of Foreign Earnings, Amount	(231)	18,502	0
Other Adjustments, Amount	(286)	5,766	(786)
Effect of Business Combination	(648)
Foreign Income Tax Rate Differential, Amount	2,415	4,660	3,392
Change in Domestic Deferred Tax Assets Option Valuation	7,381
Nondeductible Expense, Other, Amount	126	217	149
State and Local Income Taxes, Amount	267	(53)	441
Tax Contingency, Foreign, Amount	998	1,119	773
Change in Foreign Tax Law Valuation Allowance	981
Change in Foreign Deferred Tax Assets Valuation Allowance	(200)	1,378	(2,733)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount	2,030	(2,426)	(1,838)
Provision for income taxes	6,006	5,227	1,482
Unrecognized Tax Benefits, Increase Resulting from Foreign Currency Translation	$ 600		1,000
Unrecognized Tax Benefits, Decrease Resulting from Foreign Currency Translation		(3,400)
China
Income Tax Contingency [Line Items]
Effective Income Tax Rate Reconciliation, Percent	25.00%
Mexico
Income Tax Contingency [Line Items]
Effective Income Tax Rate Reconciliation, Percent	30.00%
China and Mexico [Member]
Income Tax Contingency [Line Items]
Provision for income taxes	$ 3,200	$ 6,400	$ 2,200