v3.19.1
Common Stock Capitalization (Narrative) (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 10 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Mar. 31, 2019
Feb. 28, 2019
Dec. 31, 2018
Jun. 13, 2018
Feb. 06, 2018
Dec. 31, 2017
Stockholders' Equity Note [Abstract]                
Common stock, shares authorized (in shares) 100,000,000   100,000,000   100,000,000      
Common shares $ 0.001   $ 0.001 $ 0.001        
Common stock, shares outstanding 29,745,776 30,392,041 29,745,776   29,796,601     31,335,938
Dividends declared (in usd per share) $ 0.55 $ 0.41            
Dividends declared $ 16,800              
Dividends paid $ (12,497) $ (12,850)            
Common shares issued and outstanding upon conversion of all convertible securities (in shares) 30,479,147 31,096,923 30,479,147          
Number of shares authorized to be repurchased (in shares)           1,550,000 1,550,000  
Shares repurchased (in shares) 50,825 943,897 411,915          
Average price per share (USD per share) $ 15.39 $ 14.80 $ 15.34          
Total cost $ (782) $ (13,966) $ (6,300)