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Financial Information - Washington Federal, INC. - Statement of Financial Condition (Details) - USD ($) $ in Thousands | Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2014 | Sep. 30, 2013
--- | --- | --- | --- | ---
Assets |  |  |  |
Other assets | $ 199,271 | $ 188,523 |  |
Total assets | 14,888,063 | 14,568,324 |  |
Liabilities |  |  |  |
Total liabilities | 12,912,332 | 12,612,645 |  |
Stockholders’ equity |  |  |  |
Total stockholders’ equity | 1,975,731 | 1,955,679 | $ 1,973,283 | $ 1,937,635
Total liabilities and stockholders’ equity | 14,888,063 | 14,568,324 |  |
Parent Company |  |  |  |
Assets |  |  |  |
Cash | 24,300 | 7,628 |  |
Other assets | 15 | 0 |  |
Investment in subsidiary | 1,954,179 | 1,949,262 |  |
Total assets | 1,978,494 | 1,956,890 |  |
Liabilities |  |  |  |
Other liabilities | 2,763 | 1,211 |  |
Total liabilities | 2,763 | 1,211 |  |
Stockholders’ equity |  |  |  |
Total stockholders’ equity | 1,975,731 | 1,955,679 |  |
Total liabilities and stockholders’ equity | $ 1,978,494 | $ 1,956,890 |  |

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