v3.5.0.1
Income Taxes (Narrative) (Details) - USD ($)
12 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Mar. 31, 2014
Oct. 01, 2015
Operating Loss Carryforwards [Line Items]        
Provision (benefit) for income taxes $ (35,982,000) $ (15,689,000) $ 30,659,000  
Net deferred income tax assets, current 0 1,689,000   $ 5,400,000
Net deferred tax liability 33,412,000 70,747,000    
Valuation allowance   27,100,000    
Unrecognized tax benefits, income tax penalties and interest accrued 200,000 1,300,000    
Unrecognized tax benefits 168,000 693,000 $ 693,000  
Unrecognized Tax Benefits that Would Impact Effective Tax Rate 200,000      
Unrecognized Tax Benefits, Interest on Income Taxes Expense 400,000      
Unrecognized Tax Benefits, Income Tax Penalties Expense 100,000.0      
Unrecognized tax benefits, interest accrued $ 100,000      
Prepaid Expenses        
Operating Loss Carryforwards [Line Items]        
Net deferred income tax assets, current   $ 1,700,000