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Customer Accounts - Schedule of Deposits (Details) - USD ($) $ in Thousands | Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2016
--- | --- | --- | ---
Deposit Account Balance |  |  |
Non-interest checking | $ 1,401,226 | $ 1,258,274 |
Interest checking | 1,778,520 | 1,760,821 |
Savings | 836,501 | 888,881 |
Money market | 2,566,096 | 2,453,182 |
Time deposits | 4,804,803 | 4,473,850 |
Customer accounts | $ 11,387,146 | $ 10,835,008 |
As a % of Total Deposits |  |  |
Non-interest checking | 12.40% | 11.60% |
Interest checking | 15.60% | 16.30% |
Savings | 7.30% | 8.20% |
Money market | 22.50% | 22.60% |
Time deposits | 42.20% | 41.30% |
Total | 100.00% | 100.00% |
Weighted Average Rate |  |  |
Interest checking | 0.50% | 0.23% |
Savings | 0.11% | 0.11% |
Money market | 0.65% | 0.19% |
Time deposits | 1.50% | 1.09% |
Total | 0.87% | 0.54% | 0.50%

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