Annual report pursuant to Section 13 and 15(d)

STOCK INCENTIVE PLANS AND STOCK-BASED COMPENSATION - Narrative (Details)

v3.19.2
STOCK INCENTIVE PLANS AND STOCK-BASED COMPENSATION - Narrative (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
12 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Mar. 31, 2017
Mar. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share based compensation expense $ 3,409 $ 5,394 $ 6,698  
Restructuring Charges [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share based compensation expense $ 600      
Stock options        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Pricing model used in estimating grant-date fair value Black-Scholes      
Share based compensation expense $ (43) $ 44 $ 484  
Restricted Stock Units        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares granted, stock awards 1,005 1,465   700
Fair value of nonvested shares vested $ 5,100 $ 4,800   $ 7,200
Tenure Of Vesting 3 years 3 years   3 years
Performance PSUs        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares granted, stock awards 0 400   400
Fair value of nonvested shares vested $ 100 $ 700   $ 300
Market PSUs        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Pricing model used in estimating grant-date fair value Monte Carlo      
Number of shares granted, stock awards 700 500    
Number of days over average stock price is calculated 60 days      
Market PSUs | Minimum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period 1 year      
Market PSUs | Maximum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period 3 years      
2012 Long-Term Incentive Plan        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total shares authorized 4,600      
Reserve for issuance of shares 4,300      
Stock options and restricted shares outstanding 300      
2012 Long-Term Incentive Plan | Nonemployee Directors [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period 1 year      
2012 Long-Term Incentive Plan | Minimum | Employees [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period 3 years      
2012 Long-Term Incentive Plan | Maximum | Employees [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period 4 years      
Purchase Plan        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total shares authorized 8,900      
Reserve for issuance of shares 500      
Number of shares purchased 0 300   300
Weighted-average price of stock purchased (in dollars per share) $ 0.00 $ 5.43 $ 3.48 $ 3.48
Employee's stock purchase price on grant date or exercise date 85.00%      
Purchase Plan | Maximum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Reserve for issuance of shares 300      
Approved Grants        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Reserve for issuance of shares 1,800