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Bank Deposits (Scheduled Maturities of Certificates of Deposit) (Details) - USD ($) $ in Thousands | Mar. 31, 2020 | Dec. 31, 2019
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Deposits Liabilities Balance Sheet Reported Amounts [Abstract] |  |
Within one year | $ 4,971 | $ 5,305
One to three years | 6,212 | 360
Three to five years | 213 | 13
Certificates of deposit, less than $100,000 | 11,396 | 5,678
Within one year | 175,825 | 441,341
One to three years | 39,864 | 68,855
Three to five years |  | 7,084
Certificates of deposit, $100,000 and greater | 215,689 | 517,280
Total certificates of deposit | $ 227,085 | $ 522,958

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