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Bank Deposits (Tables) | 12 Months Ended
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Dec. 31, 2017
Deposits Liabilities Balance Sheet Reported Amounts [Abstract] |
Schedule Of Deposits | Deposits consist of money market and savings accounts, certificates of deposit, and demand deposits. Deposits at December 31, 2017 and 2016 were as follows (in thousands):
|  | December 31, |
|  | 2017 |  |  | 2016 |
Money market and savings accounts |  | $ | 13,219,675 |  |  | $ | 11,264,285 |
Demand deposits (interest-bearing) |  |  | 184,829 |  |  |  | 253,545 |
Demand deposits (non-interest-bearing) |  |  | 5,856 |  |  |  | 5,752 |
Certificates of deposit |  |  | 1,575 |  |  |  | 3,901 |
|  | $ | 13,411,935 |  |  | $ | 11,527,483 |

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