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Stockholders' Equity (Tables) | 12 Months Ended
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Sep. 30, 2013
Equity [Abstract] |
Schedule of compliance with regulatory capital requirements | There are no conditions or events since that management believes have changed the Bank's categorization.
| Actual | Capital Adequacy Guidelines | Categorized as Well Capitalized Under Prompt Corrective Action Provisions
| Capital | Ratio | Capital | Ratio | Capital | Ratio
As of September 30, 2013 | (In thousands)
Total Capital (to risk-weighted assets) |  |  |  |  |  |
The Company | $ | 1,749,383 |  | 26.49 | % | $528,243 | 8.00 | % | NA | NA |
The Bank | $ | 1,693,227 |  | 25.64 | % | $528,380 | 8.00 | % | $660,475 | 10.00 | %
Tier I Capital (to risk-weighted assets) |  |  |  |  |  |
The Company | $ | 1,666,091 |  | 25.23 | % | $264,121 | 4.00 | % | NA | NA |
The Bank | $ | 1,609,914 |  | 24.38 | % | $264,190 | 4.00 | % | $396,285 | 6.00 | %
Tier 1 Capital (to average assets) |  |  |  |  |  |
The Company | $ | 1,666,091 |  | 13.03 | % | $511,334 | 4.00 | % | NA | NA |
The Bank | $ | 1,609,914 |  | 12.59 | % | $511,358 | 4.00 | % | $639,197 | 5.00 | %
As of September 30, 2012 |  |  |  |  |  |
Total Capital (to risk-weighted assets) |  |  |  |  |  |
The Company | $ | 1,707,211 |  | 28.14 | % | $485,310 | 8.00 | % | NA | NA |
The Bank | $ | 1,653,760 |  | 27.29 | % | $484,822 | 8.00 | % | $606,028 | 10.00 | %
Tier I Capital (to risk-weighted assets) |  |  |  |  |  |
The Company | $ | 1,630,656 |  | 26.88 | % | $242,655 | 4.00 | % | NA | NA |
The Bank | $ | 1,577,280 |  | 26.03 | % | $242,411 | 4.00 | % | $363,617 | 6.00 | %
Tier 1 Capital (to average assets) |  |  |  |  |  |
The Company | $ | 1,630,656 |  | 12.83 | % | $508,534 | 4.00 | % | NA | NA |
The Bank | $ | 1,577,280 |  | 12.92 | % | $488,445 | 4.00 | % | $610,556 | 5.00 | %

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- Definition Tabular disclosure of the capital amounts and ratios as of the balance sheet date, indicating whether the entity or entities are in compliance with regulatory capital requirements, by entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1H -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=7881181&loc=d3e65071-112826 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=7881181&loc=SL5958568-112826 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=7881181&loc=SL5958570-112826 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1G -URI http://asc.fasb.org/extlink&oid=7881181&loc=SL5958577-112826 + Details
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