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Other Assets - Allowance for Credit Losses Narrative (Details) - USD ($)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Financing Receivable, Allowance for Credit Loss [Line Items]      
Interest income recognized for notes receivables in nonaccrual status $ 0 $ 0 $ 0
Notes Receivable      
Financing Receivable, Allowance for Credit Loss [Line Items]      
Nonaccrual notes receivable without related allowance for credit loss 0 0  
Notes receivable 90 days or more past due still accruing $ 0 $ 0