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Investment In Securities - Summary of Weighted Average Lives of Available for Sale Securities (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Fair Value    
Less than 1 year $ 179 $ 71
Greater than or equal to 1 year and less than 3 years 27,110 548,352
Greater than or equal to 3 years and less than 5 years 333,598 282,739
Greater than or equal to 5 years 1,026,958 1,139,740
Total Available for Sale Securities 1,387,845 1,970,902
Amortized Cost    
Less than 1 year 174 72
Greater than or equal to 1 year and less than 3 years 26,731 520,657
Greater than or equal to 3 years and less than 5 years 319,762 269,716
Greater than or equal to 5 years 934,205 1,001,426
Total Available for Sale Securities $ 1,280,872 $ 1,791,871