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Guarantees (Changes in Liability of Estimated Loss from Credit Recourse Agreement) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Movement in Liabilities for Guarantees on Long-Duration Contracts, Guaranteed Benefit Liability, Gross [Roll Forward]      
Balance at beginning of year $ 218 $ 985 $ 346
Additions from Scotiabank Acquisition 0 0 710
Net recoveries (charge-offs/terminations) 76 (767) (71)
Balance at end of year $ 294 $ 218 $ 985