Annual report pursuant to Section 13 and 15(d)

Subsequent Events - Performance-based Stock Awards Narrative (Details)

v3.19.3.a.u2
Subsequent Events - Performance-based Stock Awards Narrative (Details) - Performance Shares - $ / shares
12 Months Ended
Feb. 05, 2020
Dec. 31, 2019
Dec. 31, 2018
Subsequent Event [Line Items]      
Granted (in shares)   35,887  
Granted, weighted average grant date fair value (in dollars per share)     $ 15.72
Subsequent Event      
Subsequent Event [Line Items]      
Granted (in shares) 36,647    
Granted, weighted average grant date fair value (in dollars per share) $ 12.995    
Minimum      
Subsequent Event [Line Items]      
Award vesting rights, percentage   0.00%  
Minimum | Subsequent Event      
Subsequent Event [Line Items]      
Award vesting rights, percentage 0.00%    
Maximum      
Subsequent Event [Line Items]      
Award vesting rights, percentage   150.00%  
Maximum | Subsequent Event      
Subsequent Event [Line Items]      
Award vesting rights, percentage 150.00%