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Capital Structure - Additional Information (Details)
 12 Months Ended 72 Months Ended
Jun. 30, 2021
USD ($)
director
$ / shares
shares
Jun. 29, 2021
USD ($)
$ / shares
shares
Aug. 19, 2020
USD ($)
Feb. 15, 2018
USD ($)
$ / shares
shares
Feb. 04, 2016
USD ($)
Dec. 31, 2022
USD ($)
vote
$ / shares
shares
Dec. 31, 2021
USD ($)
$ / shares
shares
Dec. 31, 2020
USD ($)
shares
Dec. 31, 2018
shares
Dec. 31, 2016
USD ($)
shares
Dec. 31, 2022
USD ($)
$ / shares
shares
Jun. 16, 2022
shares
Jun. 15, 2022
shares
Class of Stock [Line Items]                          
Capital stock authorized (in shares)           160,000,000         160,000,000    
Capital stock, par value (in dollars per share) | $ / shares           $ 0.0001         $ 0.0001    
Common stock, shares authorized (in shares)           150,000,000 100,000,000       150,000,000 150,000,000 100,000,000
Preferred stock, shares authorized (in shares)           10,000,000         10,000,000    
Dividends | $           $ 0              
Common stock, par value (in dollars per share) | $ / shares   $ 0.0001       $ 0.0001 $ 0.0001       $ 0.0001    
Retirement of treasury stock (in shares)                 3,900,000        
Number of elected class two directors | director 1                        
2020 Shelf Registration Statement                          
Class of Stock [Line Items]                          
Consideration received on transaction | $     $ 250,000,000                    
Silver Private Holdings I, LLC                          
Class of Stock [Line Items]                          
Consideration received on transaction | $       $ 97,700,000                  
Number of shares repurchased under program (in shares)       5,994,667       6,000,000          
Preferred stock, par value (in dollars per share) | $ / shares       $ 0.0001                  
Preferred stock, liquidation preference (in dollars per share) | $ / shares       $ 1,000                  
Preferred stock, shares issued (in shares)       185,000                  
Minimum                          
Class of Stock [Line Items]                          
Preferred stock, ownership percentage 5.00%                        
Maximum                          
Class of Stock [Line Items]                          
Preferred stock, ownership percentage 10.00%                        
Series B Preferred Stock                          
Class of Stock [Line Items]                          
Preferred stock, shares authorized (in shares)           150,000         150,000    
Preferred stock, par value (in dollars per share) | $ / shares $ 0.0001         $ 0.0001 $ 0.0001       $ 0.0001    
Preferred stock, liquidation preference (in dollars per share) | $ / shares $ 1,000                        
Preferred stock, dividend rate, percentage one 9.50%                        
Preferred stock, dividend rate, percentage two 13.00%                        
Preferred stock, dividend rate, percentage three 14.00%                        
Liquidation and redemption value | $           $ 73,000,000         $ 73,000,000    
Proceeds from sale of stock transactions used for redemption of shares | $ $ 50,000,000                        
Proceeds from sale of stock transactions, used for redemption of shares and buy back of shares | $ $ 25,000,000                        
Preferred dividend paid in cash | $           6,455,000 $ 1,781,000 $ 0          
Redemption of Series B Preferred stock | $           $ 6,738,000 $ 0 0          
Preferred stock, shares authorized (in shares)           150,000 150,000       150,000    
Preferred stock, shares outstanding (in shares)           71,000 75,000       71,000    
Common Stock                          
Class of Stock [Line Items]                          
Number of votes per share (vote) | vote           1              
Series A Preferred Stock                          
Class of Stock [Line Items]                          
Redemption of Series B Preferred stock | $           $ 0 $ 278,665,000 $ 0          
Stock redeemed (in shares) 268,917                        
Dividend rate, percentage       14.50%                  
Value of shares redeemed | $ $ 278,700,000                        
Preferred stock, shares authorized (in shares)           0         0    
Preferred stock, shares outstanding (in shares)           0         0    
Share Repurchase Program 2016                          
Class of Stock [Line Items]                          
Stock repurchase program authorized amount | $         $ 100,000,000                
Number of shares repurchased under program (in shares)                   1,300,000 0    
Stock repurchased during period, value | $                   $ 40,000,000      
Share Repurchase Program 2016 | Minimum                          
Class of Stock [Line Items]                          
Stock repurchase program, period in force         12 months                
Share Repurchase Program 2016 | Maximum                          
Class of Stock [Line Items]                          
Stock repurchase program, period in force         18 months                
Over-Allotment Option                          
Class of Stock [Line Items]                          
Number of shares issued in transaction (in shares)   3,846,154                      
Private Placement                          
Class of Stock [Line Items]                          
Consideration received on transaction | $   $ 102,300,000                      
Number of shares issued in transaction (in shares)   42,307,692                      
Private Placement | Series B Preferred Stock                          
Class of Stock [Line Items]                          
Consideration received on transaction | $ $ 72,800,000                        
Number of shares issued in transaction (in shares) 75,000