Quarterly report pursuant to Section 13 or 15(d)

DEBT - Schedule of Debt (Details)

v3.6.0.2
DEBT - Schedule of Debt (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
Mar. 31, 2016
Debt Instrument [Line Items]    
Unamortized discount and debt issuance costs $ (3,761) $ 0
Long-term debt, current 0 3,000
Long-term debt 76,000  
Long-term debt, net of unamortized discount and debt issuance costs 72,239 62,709
Revolving credit agreement    
Debt Instrument [Line Items]    
Long-term debt 26,000  
Convertible subordinated debt    
Debt Instrument [Line Items]    
4.50% convertible subordinated notes 64,590 70,000
Unamortized discount and debt issuance costs (371) (747)
Convertible subordinated debt, current, net of unamortized debt issuance costs 64,219 69,253
Credit agreement | Credit agreement with Wells Fargo    
Debt Instrument [Line Items]    
Long-term debt, current 0 3,000
Long-term debt 0 62,709
Credit agreement | Revolving credit agreement | Revolving credit agreement    
Debt Instrument [Line Items]    
Long-term debt 26,000 0
Term loan agreement    
Debt Instrument [Line Items]    
Long-term debt $ 50,000 $ 0