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Loans Receivable (excluding Covered Loans) (Loans Receivable, Analysis of Age of Loans in Past Due Status) (Details) (USD $) In Thousands, unless otherwise specified | Jun. 30, 2014 | Sep. 30, 2013
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amount of Loan, Net of Charge-Offs and LIP | $ 8,144,626 | $ 7,714,968
Current | 8,029,617 | 7,563,335
30 Days | 25,133 | 35,179
60 Days | 14,411 | 14,933
90 Days | 75,465 | 101,521
Total | 115,009 | 151,633
Ratio of past due loans to total loans, net of charge-offs and LIPs | 1.41% | 1.97%
Non-Acquired Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amount of Loan, Net of Charge-Offs and LIP | 7,864,066 | 7,365,734
Current | 7,752,798 | 7,224,617
30 Days | 24,536 | 32,437
60 Days | 14,053 | 13,575
90 Days | 72,679 | 95,105
Total | 111,268 | 141,117
Ratio of past due loans to total loans, net of charge-offs and LIPs | 1.41% | 1.92%
Non-Acquired Loans [Member] | Single-Family Residential [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amount of Loan, Net of Charge-Offs and LIP | 5,464,370 | 5,356,200
Current | 5,367,245 | 5,237,413
30 Days | 18,990 | 26,888
60 Days | 12,878 | 12,373
90 Days | 65,257 | 79,526
Total | 97,125 | 118,787
Ratio of past due loans to total loans, net of charge-offs and LIPs | 1.78% | 2.22%
Non-Acquired Loans [Member] | Construction - Speculative [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amount of Loan, Net of Charge-Offs and LIP | 85,412 | 82,422
Current | 84,635 | 80,047
30 Days | 301 | 0
60 Days | 0 | 0
90 Days | 476 | 2,375
Total | 777 | 2,375
Ratio of past due loans to total loans, net of charge-offs and LIPs | 0.91% | 2.88%
Non-Acquired Loans [Member] | Construction - Custom [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amount of Loan, Net of Charge-Offs and LIP | 201,475 | 130,095
Current | 201,288 | 129,678
30 Days | 44 | 417
60 Days | 0 | 0
90 Days | 143 | 0
Total | 187 | 417
Ratio of past due loans to total loans, net of charge-offs and LIPs | 0.09% | 0.32%
Non-Acquired Loans [Member] | Land - Acquisition & Development [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amount of Loan, Net of Charge-Offs and LIP | 72,241 | 71,567
Current | 70,183 | 70,106
30 Days | 227 | 0
60 Days | 0 | 0
90 Days | 1,831 | 1,461
Total | 2,058 | 1,461
Ratio of past due loans to total loans, net of charge-offs and LIPs | 2.85% | 2.04%
Non-Acquired Loans [Member] | Land - Consumer Lot Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amount of Loan, Net of Charge-Offs and LIP | 111,860 | 121,473
Current | 108,591 | 117,076
30 Days | 1,220 | 806
60 Days | 170 | 355
90 Days | 1,879 | 3,236
Total | 3,269 | 4,397
Ratio of past due loans to total loans, net of charge-offs and LIPs | 2.92% | 3.62%
Non-Acquired Loans [Member] | Multi-Family [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amount of Loan, Net of Charge-Offs and LIP | 868,968 | 790,564
Current | 865,518 | 785,793
30 Days | 2,829 | 0
60 Days | 214 | 0
90 Days | 407 | 4,771
Total | 3,450 | 4,771
Ratio of past due loans to total loans, net of charge-offs and LIPs | 0.40% | 0.60%
Non-Acquired Loans [Member] | Commercial Real Estate [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amount of Loan, Net of Charge-Offs and LIP | 476,863 | 404,680
Current | 474,923 | 398,114
30 Days | 95 | 2,942
60 Days | 0 | 351
90 Days | 1,845 | 3,273
Total | 1,940 | 6,566
Ratio of past due loans to total loans, net of charge-offs and LIPs | 0.41% | 1.62%
Non-Acquired Loans [Member] | Commercial & Industrial [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amount of Loan, Net of Charge-Offs and LIP | 333,543 | 249,405
Current | 333,430 | 249,363
30 Days | 3 | 42
60 Days | 0 | 0
90 Days | 110 | 0
Total | 113 | 42
Ratio of past due loans to total loans, net of charge-offs and LIPs | 0.03% | 0.02%
Non-Acquired Loans [Member] | HELOC [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amount of Loan, Net of Charge-Offs and LIP | 117,178 | 112,186
Current | 116,188 | 111,407
30 Days | 53 | 493
60 Days | 370 | 213
90 Days | 567 | 73
Total | 990 | 779
Ratio of past due loans to total loans, net of charge-offs and LIPs | 0.84% | 0.69%
Non-Acquired Loans [Member] | Consumer [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amount of Loan, Net of Charge-Offs and LIP | 132,156 | 47,142
Current | 130,797 | 45,620
30 Days | 774 | 849
60 Days | 421 | 283
90 Days | 164 | 390
Total | 1,359 | 1,522
Ratio of past due loans to total loans, net of charge-offs and LIPs | 1.03% | 3.23%
Acquired Non-Impaired Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amount of Loan, Net of Charge-Offs and LIP | 197,223 | 250,350
Current | 194,879 | 243,718
30 Days | 357 | 441
60 Days | 358 | 894
90 Days | 1,629 | 5,297
Total | 2,344 | 6,632
Ratio of past due loans to total loans, net of charge-offs and LIPs | 1.19% | 2.65%
Acquired Non-Impaired Loans [Member] | Single-Family Residential [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amount of Loan, Net of Charge-Offs and LIP | 12,014 | 14,468
Current | 11,990 | 14,343
30 Days | 0 | 82
60 Days | 0 | 0
90 Days | 24 | 43
Total | 24 | 125
Ratio of past due loans to total loans, net of charge-offs and LIPs | 0.20% | 0.86%
Acquired Non-Impaired Loans [Member] | Construction - Speculative [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amount of Loan, Net of Charge-Offs and LIP | 0 | 0
Current | 0 | 0
30 Days | 0 | 0
60 Days | 0 | 0
90 Days | 0 | 0
Total | 0 | 0
Acquired Non-Impaired Loans [Member] | Construction - Custom [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amount of Loan, Net of Charge-Offs and LIP | 0 | 0
Current | 0 | 0
30 Days | 0 | 0
60 Days | 0 | 0
90 Days | 0 | 0
Total | 0 | 0
Acquired Non-Impaired Loans [Member] | Land - Acquisition & Development [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amount of Loan, Net of Charge-Offs and LIP | 1,069 | 1,489
Current | 663 | 1,241
30 Days | 0 | 0
60 Days | 0 | 0
90 Days | 406 | 248
Total | 406 | 248
Ratio of past due loans to total loans, net of charge-offs and LIPs | 37.98% | 16.66%
Acquired Non-Impaired Loans [Member] | Land - Consumer Lot Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amount of Loan, Net of Charge-Offs and LIP | 2,651 | 3,313
Current | 2,651 | 2,987
30 Days | 0 | 125
60 Days | 0 | 100
90 Days | 0 | 101
Total | 0 | 326
Ratio of past due loans to total loans, net of charge-offs and LIPs | 0.00% | 9.84%
Acquired Non-Impaired Loans [Member] | Multi-Family [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amount of Loan, Net of Charge-Offs and LIP | 3,057 | 3,914
Current | 3,057 | 3,914
30 Days | 0 | 0
60 Days | 0 | 0
90 Days | 0 | 0
Total | 0 | 0
Ratio of past due loans to total loans, net of charge-offs and LIPs | 0.00% | 0.00%
Acquired Non-Impaired Loans [Member] | Commercial Real Estate [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amount of Loan, Net of Charge-Offs and LIP | 103,189 | 133,398
Current | 102,421 | 128,610
30 Days | 0 | 134
60 Days | 0 | 617
90 Days | 768 | 4,037
Total | 768 | 4,788
Ratio of past due loans to total loans, net of charge-offs and LIPs | 0.74% | 3.59%
Acquired Non-Impaired Loans [Member] | Commercial & Industrial [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amount of Loan, Net of Charge-Offs and LIP | 60,348 | 75,323
Current | 60,136 | 74,992
30 Days | 212 | 10
60 Days | 0 | 153
90 Days | 0 | 168
Total | 212 | 331
Ratio of past due loans to total loans, net of charge-offs and LIPs | 0.35% | 0.44%
Acquired Non-Impaired Loans [Member] | HELOC [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amount of Loan, Net of Charge-Offs and LIP | 8,468 | 10,179
Current | 8,335 | 10,063
30 Days | 133 | 0
60 Days | 0 | 16
90 Days | 0 | 100
Total | 133 | 116
Ratio of past due loans to total loans, net of charge-offs and LIPs | 1.57% | 1.14%
Acquired Non-Impaired Loans [Member] | Consumer [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amount of Loan, Net of Charge-Offs and LIP | 6,427 | 8,266
Current | 5,626 | 7,568
30 Days | 12 | 90
60 Days | 358 | 8
90 Days | 431 | 600
Total | 801 | 698
Ratio of past due loans to total loans, net of charge-offs and LIPs | 12.46% | 8.44%
Credit Impaired Acquired Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amount of Loan, Net of Charge-Offs and LIP | 83,337 | 98,884
Current | 81,940 | 95,000
30 Days | 240 | 2,301
60 Days | 0 | 464
90 Days | 1,157 | 1,119
Total | 1,397 | 3,884
Ratio of past due loans to total loans, net of charge-offs and LIPs | 1.68% | 3.93%
Credit Impaired Acquired Loans [Member] | Single-Family Residential [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amount of Loan, Net of Charge-Offs and LIP | 326 | 333
Current | 326 | 333
30 Days | 0 | 0
60 Days | 0 | 0
90 Days | 0 | 0
Total | 0 | 0
Ratio of past due loans to total loans, net of charge-offs and LIPs | 0.00% | 0.00%
Credit Impaired Acquired Loans [Member] | Construction - Speculative [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amount of Loan, Net of Charge-Offs and LIP | 0 | 0
Current | 0 | 0
30 Days | 0 | 0
60 Days | 0 | 0
90 Days | 0 | 0
Total | 0 | 0
Credit Impaired Acquired Loans [Member] | Construction - Custom [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amount of Loan, Net of Charge-Offs and LIP | 0 | 0
Current | 0 | 0
30 Days | 0 | 0
60 Days | 0 | 0
90 Days | 0 | 0
Total | 0 | 0
Ratio of past due loans to total loans, net of charge-offs and LIPs |  | 0.00%
Credit Impaired Acquired Loans [Member] | Land - Acquisition & Development [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amount of Loan, Net of Charge-Offs and LIP | 1,670 | 2,393
Current | 1,670 | 1,929
30 Days | 0 | 0
60 Days | 0 | 464
90 Days | 0 | 0
Total | 0 | 464
Ratio of past due loans to total loans, net of charge-offs and LIPs | 0.00% | 19.39%
Credit Impaired Acquired Loans [Member] | Land - Consumer Lot Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amount of Loan, Net of Charge-Offs and LIP | 0 | 0
Current | 0 | 0
30 Days | 0 | 0
60 Days | 0 | 0
90 Days | 0 | 0
Total | 0 | 0
Ratio of past due loans to total loans, net of charge-offs and LIPs |  | 0.00%
Credit Impaired Acquired Loans [Member] | Multi-Family [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amount of Loan, Net of Charge-Offs and LIP | 0 | 0
Current | 0 | 0
30 Days | 0 | 0
60 Days | 0 | 0
90 Days | 0 | 0
Total | 0 | 0
Ratio of past due loans to total loans, net of charge-offs and LIPs |  | 0.00%
Credit Impaired Acquired Loans [Member] | Commercial Real Estate [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amount of Loan, Net of Charge-Offs and LIP | 66,344 | 83,116
Current | 65,996 | 80,095
30 Days | 0 | 2,301
60 Days | 0 | 0
90 Days | 348 | 720
Total | 348 | 3,021
Ratio of past due loans to total loans, net of charge-offs and LIPs | 0.52% | 3.63%
Credit Impaired Acquired Loans [Member] | Commercial & Industrial [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amount of Loan, Net of Charge-Offs and LIP | 4,281 | 1,705
Current | 3,863 | 1,396
30 Days | 12 | 0
60 Days | 0 | 0
90 Days | 406 | 309
Total | 418 | 309
Ratio of past due loans to total loans, net of charge-offs and LIPs | 9.76% | 18.12%
Credit Impaired Acquired Loans [Member] | HELOC [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amount of Loan, Net of Charge-Offs and LIP | 10,658 | 11,266
Current | 10,027 | 11,176
30 Days | 228 | 0
60 Days | 0 | 0
90 Days | 403 | 90
Total | 631 | 90
Ratio of past due loans to total loans, net of charge-offs and LIPs | 5.92% | 0.80%
Credit Impaired Acquired Loans [Member] | Consumer [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amount of Loan, Net of Charge-Offs and LIP | 58 | 71
Current | 58 | 71
30 Days | 0 | 0
60 Days | 0 | 0
90 Days | 0 | 0
Total | $ 0 | $ 0
Ratio of past due loans to total loans, net of charge-offs and LIPs | 0.00% | 0.00%

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