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Bank Deposits (Tables) | 12 Months Ended
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Dec. 31, 2016
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, 2016 and 2015, were as follows (in thousands):
|  | December 31, |
|  | 2016 |  |  | 2015 |
Money market and savings accounts |  | $ | 11,264,285 |  |  | $ | 6,429,780 |
Demand deposits (interest-bearing) |  |  | 253,545 |  |  |  | 185,275 |
Certificates of deposit |  |  | 3,901 |  |  |  | 15,087 |
Demand deposits (non-interest-bearing) |  |  | 5,752 |  |  |  | 8,214 |
|  | $ | 11,527,483 |  |  | $ | 6,638,356 |
Schedule Of Maturities Of Certificates Of Deposit | Scheduled maturities of certificates of deposit at December 31, 2016 and 2015, were as follows (in thousands):
|  | December 31, |
|  | 2016 |  |  | 2015 |
Certificates of deposit, less than $100: |  |  |  |  |  |  |  |
Within one year |  | $ | 1,213 |  |  | $ | 4,863 |
One to three years |  |  | 855 |  |  |  | 2,356 |
Three to five years |  |  | — |  |  |  | 145 |
Over five years |  |  | — |  |  |  | — |
|  | $ | 2,068 |  |  | $ | 7,364 |
Certificates of deposit, $100 and greater: |  |  |  |  |  |  |  |
Within one year |  | $ | 877 |  |  | $ | 5,464 |
One to three years |  |  | 956 |  |  |  | 1,975 |
Three to five years |  |  | — |  |  |  | 284 |
Over five years |  |  | — |  |  |  | — |
|  |  | 1,833 |  |  |  | 7,723 |
|  | $ | 3,901 |  |  | $ | 15,087 |

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