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Customer Accounts (Details) (USD $) In Thousands, unless otherwise specified | Sep. 30, 2013 | Sep. 30, 2012
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Banking and Thrift [Abstract] |  |
Checking accounts, .15% and under | $ 1,247,885 | $ 894,639
Passbook and statement accounts, .20% and under | 404,937 | 314,634
Insured money market accounts, .01% to .30% | 1,888,020 | 1,737,180
Certificate accounts |  |
Less than 2.00% | 4,716,427 | 4,308,341
2.00% to 2.99% | 631,256 | 841,520
3.00% to 3.99% | 175,549 | 381,324
4.00% to 4.99% | 25,335 | 98,119
5.00% to 5.99% | 862 | 861
Total certificates | 5,549,429 | 5,630,165
Customer accounts | 9,090,271 | 8,576,618
Within 1 year | 3,642,142 | 3,556,701
1 to 2 years | 789,037 | 1,013,450
2 to 3 years | 406,960 | 425,559
Over 3 years | 711,290 | 634,455
Customer Accounts Greater than $250,000 | $ 1,336,054 | $ 1,036,388

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- Definition Amount of deposits in accounts that offer many of the same services as checking accounts although transactions may be somewhat more limited, share some of the characteristics of a money market fund and are insured by the Federal government, also known as money market accounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.12) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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- Definition Amount of interest bearing deposits with no stated maturity, which may include passbook and statement savings accounts and money-market deposit accounts (MMDAs). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.12) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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- Definition Amount of interest-bearing domestic checking deposit liabilities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.12) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 12 -Article 9 + Details
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- Definition Amount of deposits that cannot be withdrawn before a set date without penalty or for which notice of withdrawal is required. Time deposits include, but are not limited to, certificates of deposits, individual retirement accounts and open accounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.12) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 12 -Article 9 + Details
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- Definition Certificates of Deposit, 1 to 2 years + References No definition available. + Details
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- Definition Savings and Demand Accounts and Repurchase Agreements with Customers + References No definition available. + Details
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