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Stock and Stockholders' Equity (Details)
 3 Months Ended 6 Months Ended 12 Months Ended
Jul. 26, 2023
$ / shares
Aug. 24, 2020
USD ($)
day
director
dividendPeriod
$ / shares
Rate
shares
Apr. 17, 2020
USD ($)
day
Jun. 30, 2023
USD ($)
shares
Mar. 31, 2023
USD ($)
Jun. 30, 2022
USD ($)
Mar. 31, 2022
USD ($)
Jun. 30, 2023
USD ($)
shares
Jun. 30, 2022
USD ($)
Dec. 31, 2021
shares
Dec. 31, 2022
USD ($)
shares
Feb. 28, 2017
USD ($)
Class of Stock [Line Items]                        
Preferred stock, shares outstanding (in shares) | shares       3,290,000       3,290,000   3,290,000 3,290,000  
Accrued preferred stock dividends [1]       $ 5,347,000 $ 5,346,000 $ 5,347,000 $ 5,346,000          
Dividends paid on preferred stock       5,000,000   $ 5,000,000   $ 10,693,000 $ 10,693,000      
Authorized to repurchase                       $ 500,000,000
Number of shares repurchased (in shares) | shares               0        
Remaining authorized amount       287,000,000       $ 287,000,000        
4.00% senior exchangeable notes due 2025 | Convertible Debt                        
Class of Stock [Line Items]                        
Number of consecutive trading days | day     30                  
Face value of debt instruments at the time of issuance     $ 345,000,000                  
Face value of outstanding debt       $ 333,220,000       333,220,000     $ 333,220,000  
Common Stock                        
Class of Stock [Line Items]                        
Conversion of stock, shares issued (in shares) | shares                   595,240    
6.50% Series A Mandatory Convertible Preferred Stock                        
Class of Stock [Line Items]                        
Shares sold in offering (in shares) | shares   3,340,000                    
Annual percentage rate   6.50%   6.50% 6.50% 6.50%            
Offering proceeds   $ 323,000,000                    
Conversion of stock, shares converted (in shares) | shares                   50,000    
Liquidation preference (in dollars per share) | $ / shares   $ 100                    
Annual liquidation preference (in dollars per share) | $ / shares   $ 6.50                    
Accrued preferred stock dividends       $ 5,000,000   $ 5,000,000   $ 11,000,000 $ 11,000,000      
Number of consecutive trading days | day   20                    
Number of dividend periods with no stock declared or paid | dividendPeriod   6                    
Number of new directors to elect | director   2                    
6.50% Series A Mandatory Convertible Preferred Stock | Minimum                        
Class of Stock [Line Items]                        
Conversion rate | Rate   1190.48%                    
Shares issued at conversion (in shares) | shares   39,000,000                    
6.50% Series A Mandatory Convertible Preferred Stock | Maximum                        
Class of Stock [Line Items]                        
Conversion rate | Rate   1428.57%                    
Shares issued at conversion (in shares) | shares   47,000,000                    
6.50% Series A Mandatory Convertible Preferred Stock | Subsequent Event                        
Class of Stock [Line Items]                        
Preferred dividend declared (in dollars per share) | $ / shares $ 1.625                      
[1] Our mandatory convertible preferred stock accumulates cumulative dividends at an annual rate of 6.50%.