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Allowance for Losses on Loans - Allowance for Credit Losses (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |
Beginning Allowance | $ 133,086 | $ 127,576 | $ 129,257 | $ 123,073
Charge-offs | (4,752) | (3,674) | (7,408) | (4,865)
Recoveries | 5,688 | 3,764 | 10,923 | 9,408
Provision & Transfers | 0 | 1,000 | 1,250 | 1,050
Ending Allowance | 134,022 | 128,666 | 134,022 | 128,666
Single-family residential |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |
Beginning Allowance | 31,476 | 34,144 | 33,033 | 36,892
Charge-offs | (65) | (299) | (238) | (1,049)
Recoveries | 47 | 283 | 586 | 615
Provision & Transfers | 56 | 273 | (1,867) | (2,057)
Ending Allowance | 31,514 | 34,401 | 31,514 | 34,401
Construction |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |
Beginning Allowance | 33,396 | 27,389 | 31,317 | 24,556
Charge-offs | 0 | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 0
Provision & Transfers | 661 | 2,744 | 2,740 | 5,577
Ending Allowance | 34,057 | 30,133 | 34,057 | 30,133
Construction - custom |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |
Beginning Allowance | 1,976 | 2,081 | 1,842 | 1,944
Charge-offs | (339) | 0 | (339) | (50)
Recoveries | 0 | 0 | 0 | 0
Provision & Transfers | 247 | (67) | 381 | 120
Ending Allowance | 1,884 | 2,014 | 1,884 | 2,014
Land - acquisition & development |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |
Beginning Allowance | 9,734 | 7,622 | 7,978 | 6,829
Charge-offs | (65) | (12) | (65) | (12)
Recoveries | 2,025 | 2,699 | 5,107 | 7,278
Provision & Transfers | (2,306) | (2,609) | (3,632) | (6,395)
Ending Allowance | 9,388 | 7,700 | 9,388 | 7,700
Land - consumer lot loans |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |
Beginning Allowance | 2,076 | 2,853 | 2,164 | 2,649
Charge-offs | (215) | (1) | (336) | (67)
Recoveries | 0 | 35 | 265 | 35
Provision & Transfers | 171 | 20 | (61) | 290
Ending Allowance | 2,032 | 2,907 | 2,032 | 2,907
Multi-family |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |
Beginning Allowance | 7,394 | 7,982 | 8,329 | 7,862
Charge-offs | 0 | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 0
Provision & Transfers | (111) | 109 | (1,046) | 229
Ending Allowance | 7,283 | 8,091 | 7,283 | 8,091
Commercial real estate |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |
Beginning Allowance | 12,448 | 11,588 | 11,852 | 11,818
Charge-offs | 0 | 0 | (339) | (36)
Recoveries | 90 | 91 | 860 | 92
Provision & Transfers | 466 | (100) | 631 | (295)
Ending Allowance | 13,004 | 11,579 | 13,004 | 11,579
Commercial & industrial |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |
Beginning Allowance | 30,574 | 29,330 | 28,702 | 28,524
Charge-offs | (4,034) | (3,317) | (4,499) | (3,433)
Recoveries | 3,218 | 433 | 3,276 | 603
Provision & Transfers | 1,313 | 1,069 | 3,592 | 1,821
Ending Allowance | 31,071 | 27,515 | 31,071 | 27,515
HELOC |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |
Beginning Allowance | 1,082 | 802 | 781 | 855
Charge-offs | 0 | 0 | (1,086) | (1)
Recoveries | 1 | 0 | 45 | 0
Provision & Transfers | 4 | 9 | 1,347 | (43)
Ending Allowance | 1,087 | 811 | 1,087 | 811
Consumer |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |
Beginning Allowance | 2,930 | 3,785 | 3,259 | 1,144
Charge-offs | (34) | (45) | (506) | (217)
Recoveries | 307 | 223 | 784 | 785
Provision & Transfers | (501) | (448) | (835) | 1,803
Ending Allowance | $ 2,702 | $ 3,515 | $ 2,702 | $ 3,515

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- Definition A valuation allowance for financing receivables that are expected to be uncollectible. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 + Details
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- Definition Amount of recovery of financing receivables doubtful of collection that were previously charged off. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(4) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 + Details
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Definition Amount of direct write-downs of financing receivables charged against the allowance. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 + Details
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