XML 115 R99.htm IDEA: XBRL DOCUMENT v3.5.0.2
Stock-Based Compensation Cash-Settled Performance-Based Restricted Stock Units (Details) - USD ($)
12 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Mar. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]      
Unearned compensation $ 463,000    
Compensation expense $ 2,874,000 $ 3,194,000 $ 3,222,000
Cash-Settled Performance-Based Restricted Stock Units [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period (in years) 3 years    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]      
Balance at (in shares) 44,000    
Granted (in shares) 0    
Forfeited (in shares) (2,000)    
Balance at (in shares) 42,000 44,000  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]      
Balance at, Weighted Average Grant Date Fair Value (usd per share) $ 27.06    
Granted, Weighted Average Grant Date Fair Value (usd per share) 0.00    
Forfeited, Weighted Average Grant Date Fair Value (usd per share) 27.20    
Balance at, Weighted Average Grant Date Fair Value (usd per share) $ 27.10 $ 27.06  
Shares expected to vest (in shares) 0    
Unearned compensation $ 0    
Compensation expense $ (39,000) $ 39,000 $ 0
Cash-Settled Performance-Based Restricted Stock Units [Member] | Minimum [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Percentage of plan's target contingent on performance level attained 0.00%    
Cash-Settled Performance-Based Restricted Stock Units [Member] | Maximum [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Percentage of plan's target contingent on performance level attained 200.00%