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Share Capital - Common Stock (Details) - USD ($)
1 Months Ended 3 Months Ended 8 Months Ended 12 Months Ended
Jan. 01, 2010
Jul. 01, 2008
Feb. 28, 2023
May 31, 2021
Aug. 31, 2020
Jun. 30, 2020
Apr. 30, 2020
Mar. 31, 2020
Nov. 30, 2019
Mar. 18, 2022
Dec. 31, 2021
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Jun. 30, 2022
Dec. 31, 2019
Class of Stock [Line Items]                                
Ordinary shares issued (in shares)             2,951,699   3,963,964              
Common stock | 2020 august ATM program                                
Class of Stock [Line Items]                                
Stock sale program, gross offering proceeds of shares authorized to be sold       $ 100,000,000 $ 23,500,000                      
Number of shares issued in transaction (in shares)                   0 19,417,280          
Consideration received on sale of stock                     $ 71,537,000          
Audit committee chairman                                
Class of Stock [Line Items]                                
Share based compensation value of transaction   $ 15,000                            
Share-based payment (in shares)                       17,448 24,483 48,079    
Independent directors                                
Class of Stock [Line Items]                                
Share based compensation value of transaction $ 7,500                              
Share-based payment (in shares)                       17,448 24,482 48,079    
2019 december share repurchase program | Common stock                                
Class of Stock [Line Items]                                
Stock repurchase program, number of shares authorized to be repurchased (in shares)                               1,500,000
Share repurchased (in shares)               1,500,000                
2020 march share repurchase program | Common stock                                
Class of Stock [Line Items]                                
Stock repurchase program, number of shares authorized to be repurchased (in shares)               2,000,000                
Share repurchased (in shares)           3,624,283                    
Stock repurchase program, additional number of shares authorized to be repurchased (in shares)               2,000,000                
June 2022 share repurchase program | Common stock                                
Class of Stock [Line Items]                                
Stock repurchase program, number of shares authorized to be repurchased (in shares)                             5,000,000  
June 2022 share repurchase program | Common stock | Subsequent event                                
Class of Stock [Line Items]                                
Share repurchased (in shares)     2,807,418                          
Hull No. S 1772                                
Class of Stock [Line Items]                                
Installment payment             $ 3,300,000   $ 6,600,000