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Other Assets - Summary of Other Assets (Details) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Other Assets [Abstract]    
Operating lease right of use assets $ 22,454 $ 19,956
Tax credit investments 50,075 34,370
Derivative instruments 16,139 20,120
Collateral on derivative instruments 6,180 19,630
Other 71,165 62,010
Total other assets $ 166,013 $ 156,086