Quarterly report pursuant to Section 13 or 15(d)

Shareholders' Equity - Narrative (Details)

v3.19.2
Shareholders' Equity - Narrative (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 6 Months Ended 28 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Apr. 30, 2019
Capital Unit [Line Items]            
Shares authorized for repurchase (in shares) (up to)           37,500,000
Repurchase and retirement of common stock $ 9,295 $ 1,699 $ 10,347 $ 3,428    
Restricted stock units forfeited (in shares) 82,500   82,500.0      
Non-cash compensation expense $ 1,444 $ 1,568 $ 2,938 $ 3,062    
Shares surrendered for tax withholdings (in shares) 660,756 7,898 1,002,460 247,379    
Preferred stock issued, net of underwriting discount and expense $ 2,534 $ (52) $ 9,449 $ (89)    
Preferred stock dividends declared and paid 8,695 8,508 17,285 17,016    
Common stock dividends declared and paid $ 1,793 1,969 $ 3,587 3,929    
Common Stock            
Capital Unit [Line Items]            
Repurchase and retirement of common stock (in shares) 1,886,387   1,886,387.000   27,070,492  
Repurchase and retirement of common stock $ 6,552   $ 6,552   $ 72,668  
Shares available for purchase (in shares) 10,429,508   10,429,508   10,429,508  
Additional shares authorized for repurchase (in shares) (up to)           10,000,000
Common stock cash dividend (in dollars per share) $ 0.0125          
Common stock dividends declared and paid $ 1,793   $ 3,587      
Series A Preferred Stock            
Capital Unit [Line Items]            
Preferred stock issued, net of underwriting discount and expense (in shares) 101,977   389,207      
Preferred stock issued, net of underwriting discount and expense $ 2,534   $ 9,449      
Preferred stock dividends declared and paid 8,695   $ 17,285      
Dividends paid per share on monthly basis (in dollars per share)     $ 0.1667      
Employees            
Capital Unit [Line Items]            
Stock-based compensation 1,440 1,548 $ 2,923 3,035    
Consultants and Independent Financial Advisors            
Capital Unit [Line Items]            
Stock-based compensation 4 $ 20 15 $ 27    
Options            
Capital Unit [Line Items]            
Unrecognized compensation cost for stock based compensation $ 115   $ 115   $ 115  
Unrecognized compensation cost for stock based compensation, period of recognition     5 months 45 days      
Purchase of shares (in shares) 2,578,710   2,748,927      
Intrinsic value of options exercised $ 6,099   $ 6,334      
Restricted shares            
Capital Unit [Line Items]            
Unrecognized compensation cost for stock based compensation 13,845   $ 13,845   13,845  
Unrecognized compensation cost for stock based compensation, period of recognition     2 years 10 months 13 days      
Restricted shares | Employees            
Capital Unit [Line Items]            
Non-cash compensation expense 1,440   $ 2,923      
Restricted shares | Awards Granted In 2019            
Capital Unit [Line Items]            
Unrecognized compensation cost for stock based compensation $ 8,050   $ 8,050   $ 8,050  
Unrecognized compensation cost for stock based compensation, period of recognition     3 years 4 months 28 days      
Options, Warrants, and Other            
Capital Unit [Line Items]            
Shares surrendered for tax withholdings (in shares) 660,756   1,002,460