Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation - Restricted Stock Units (Details)

v3.19.1
Stock-Based Compensation - Restricted Stock Units (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Mar. 20, 2019
Apr. 18, 2018
Mar. 31, 2019
Jun. 30, 2018
Mar. 31, 2019
Mar. 31, 2018
Mar. 31, 2017
Restricted Stock              
Shares              
Non-vested restricted stock at the beginning of the period (in shares)       2,452,000 2,452,000    
Granted (in shares)         910,000    
Vested (in shares)         (1,789,000)    
Allocated Share-based Compensation Expense         $ 8,928 $ 5,106 $ 2,150
Forfeited (in shares)         (158,000)    
Non-vested restricted stock at the end of the period (in shares)     1,415,000   1,415,000 2,452,000  
Weighted-average Fair Value on Grant Date              
Non-vested restricted stock at the beginning of the period (in dollars per share)       $ 7.96 $ 7.96    
Granted (in dollars per share)         19.43    
Vested (in dollars per share)         7.67    
Forfeited (in dollars per share)         12.68    
Non-vested restricted stock at the end of the period (in dollars per share)     $ 15.19   $ 15.19 $ 7.96  
Compensation not yet recognized     $ 8,000   $ 8,000 $ 8,100  
Director | Restricted Stock              
Weighted-average Fair Value on Grant Date              
Vesting period         0 years    
Officer | Restricted Stock              
Weighted-average Fair Value on Grant Date              
Vesting period         3 years    
Chief executive officer | Restricted Stock              
Shares              
Vested (in shares) (44,302) (275,000)          
Weighted-average Fair Value on Grant Date              
Period of restriction for sale of shares         90 days    
Chief executive officer | Restricted Stock Units              
Shares              
Forfeited (in shares)         (85,956)    
Weighted-average Fair Value on Grant Date              
Accelerated compensation cost     200 $ 1,700      
June 29, 2015 | Chief executive officer | Restricted Stock Units              
Shares              
Vested (in shares)   (175,000)          
September 6, 2017 | Chief executive officer | Restricted Stock Units              
Shares              
Vested (in shares)   (100,000)          
May 18, 2016 [Member] | Chief executive officer | Restricted Stock Units              
Shares              
Vested (in shares) (20,220)            
May 18, 2017 [Member] | Chief executive officer | Restricted Stock Units              
Shares              
Vested (in shares) (11,237)            
May 18, 2018 [Member] | Chief executive officer | Restricted Stock Units              
Shares              
Vested (in shares) (12,845)            
LTIPs              
Shares              
Allocated Share-based Compensation Expense         $ 3,938 2,551 $ 2,528
Weighted-average Fair Value on Grant Date              
Terms of award         P2Y    
LTIPs | Restricted Stock              
Weighted-average Fair Value on Grant Date              
Compensation not yet recognized     $ 4,100   $ 4,100 $ 1,600  
Restricted Stock Units Settled with Cash [Member] | Restricted Stock              
Shares              
Vested (in shares)         (33,000)    
Allocated Share-based Compensation Expense         $ 211    
2019/2020 | Share-based Compensation Award, Tranche One [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number     13,000   13,000    
2019/2020 | Share-based Compensation Award, Tranche Two [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number     53,000   53,000