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Allowance for Credit Losses - Narrative (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Financing Receivable, Allowance for Credit Loss [Line Items]    
Credit loss, expense (reversal), period increase (decrease) $ 115,900  
Provision for credit losses on loans 15,494 $ 131,421
CARES Act, Paycheck Protection Program Loans | COVID-19    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Financing receivable, after allowance for credit loss   $ 465,000
CARES Act, Paycheck Protection Program Loans | Commercial    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Financing receivable, after allowance for credit loss $ 88,300