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Significant Accounting Policies - Narrative (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2022
USD ($)
Dec. 31, 2022
USD ($)
Dec. 31, 2022
USD ($)
Segment
Dec. 31, 2021
USD ($)
Jan. 01, 2021
USD ($)
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Accounting Policies [Abstract]              
Number of segments   3 3        
Requisite service period, Class B shares 3 years            
New Accounting Pronouncements or Change in Accounting Principle [Line Items]              
Total shareholders’ equity $ 6,288,350 $ 6,288,350 $ 6,288,350 $ 7,543,986   $ 7,326,997  
Accounting Standards Update       Accounting Standards Update 2016-13      
Retained earnings              
New Accounting Pronouncements or Change in Accounting Principle [Line Items]              
Total shareholders’ equity 4,358,085 4,358,085 4,358,085 $ 5,635,758   5,062,948 $ 4,921,395
Retained earnings | Cumulative effect of adoption of accounting guidance              
New Accounting Pronouncements or Change in Accounting Principle [Line Items]              
Total shareholders’ equity       0   0 (14,305)
Retained earnings | Cumulative effect of adoption of accounting guidance | Accounting Standards Update 2016-13              
New Accounting Pronouncements or Change in Accounting Principle [Line Items]              
Total shareholders’ equity             (14,000)
Accumulated other comprehensive loss              
New Accounting Pronouncements or Change in Accounting Principle [Line Items]              
Total shareholders’ equity $ (7,669) $ (7,669) $ (7,669) $ (29,706)   $ (96,005) $ (75,925)
Pro Forma | Accounting Standards Update 2018-12              
New Accounting Pronouncements or Change in Accounting Principle [Line Items]              
Accounting Standards Update Accounting Standards Update 2018-12            
Change in Accounting Principle, Accounting Standards Update, Adoption Date Jan. 01, 2023 Jan. 01, 2023 Jan. 01, 2023        
Pro Forma | Retained earnings | Revision of Prior Period, Accounting Standards Update, Adjustment | Accounting Standards Update 2018-12 | Minimum              
New Accounting Pronouncements or Change in Accounting Principle [Line Items]              
Total shareholders’ equity $ 5,000 $ 5,000 $ 5,000        
Pro Forma | Retained earnings | Revision of Prior Period, Accounting Standards Update, Adjustment | Accounting Standards Update 2018-12 | Maximum              
New Accounting Pronouncements or Change in Accounting Principle [Line Items]              
Total shareholders’ equity 75,000 75,000 75,000        
Pro Forma | Retained earnings | Cumulative effect of adoption of accounting guidance | Accounting Standards Update 2018-12 | Minimum              
New Accounting Pronouncements or Change in Accounting Principle [Line Items]              
Total shareholders’ equity         $ (130,000)    
Pro Forma | Retained earnings | Cumulative effect of adoption of accounting guidance | Accounting Standards Update 2018-12 | Maximum              
New Accounting Pronouncements or Change in Accounting Principle [Line Items]              
Total shareholders’ equity         (200,000)    
Pro Forma | Accumulated other comprehensive loss | Revision of Prior Period, Accounting Standards Update, Adjustment | Accounting Standards Update 2018-12 | Minimum              
New Accounting Pronouncements or Change in Accounting Principle [Line Items]              
Total shareholders’ equity 50,000 50,000 50,000        
Pro Forma | Accumulated other comprehensive loss | Revision of Prior Period, Accounting Standards Update, Adjustment | Accounting Standards Update 2018-12 | Maximum              
New Accounting Pronouncements or Change in Accounting Principle [Line Items]              
Total shareholders’ equity $ 120,000 $ 120,000 $ 120,000        
Pro Forma | Accumulated other comprehensive loss | Cumulative effect of adoption of accounting guidance | Accounting Standards Update 2018-12 | Minimum              
New Accounting Pronouncements or Change in Accounting Principle [Line Items]              
Total shareholders’ equity         (110,000)    
Pro Forma | Accumulated other comprehensive loss | Cumulative effect of adoption of accounting guidance | Accounting Standards Update 2018-12 | Maximum              
New Accounting Pronouncements or Change in Accounting Principle [Line Items]              
Total shareholders’ equity         $ (180,000)