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Loans Receivable (excluding Covered Loans) - Loans Receivable, Analysis of Age of Loans in Past Due Status (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Sep. 30, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of loans, net of charge-offs and LIP	$ 8,817,760	$ 8,323,544
Current	8,731,344	8,203,280
Past due	$ 86,416	$ 120,264
Ratio of past due loans to total loans, net of charge-offs and LIPs	0.98%	1.44%
Financing Receivables, 1 to 29 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	$ 18,350	$ 19,762
Financing Receivables, 30 to 59 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	9,724	27,907
Financing Receivables, 60 to 89 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	58,342	72,595
Non-Acquired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of loans, net of charge-offs and LIP	8,536,860	8,063,364
Current	8,455,606	7,947,551
Past due	$ 81,254	$ 115,813
Ratio of past due loans to total loans, net of charge-offs and LIPs	0.95%	1.44%
Non-Acquired Loans [Member] | Single-Family Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of loans, net of charge-offs and LIP	$ 5,546,941	$ 5,557,753
Current	5,473,728	5,467,239
Past due	$ 73,213	$ 90,514
Ratio of past due loans to total loans, net of charge-offs and LIPs	1.32%	1.63%
Non-Acquired Loans [Member] | Construction - Speculative [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of loans, net of charge-offs and LIP	$ 117,711	$ 87,035
Current	117,711	87,035
Past due	$ 0	$ 0
Ratio of past due loans to total loans, net of charge-offs and LIPs	0.00%	0.00%
Non-Acquired Loans [Member] | Construction - Custom [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of loans, net of charge-offs and LIP	$ 204,914	$ 192,098
Current	204,140	191,262
Past due	$ 774	$ 836
Ratio of past due loans to total loans, net of charge-offs and LIPs	0.38%	0.44%
Non-Acquired Loans [Member] | Land - Acquisition & Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of loans, net of charge-offs and LIP	$ 72,856	$ 68,066
Current	72,429	67,911
Past due	$ 427	$ 155
Ratio of past due loans to total loans, net of charge-offs and LIPs	0.59%	0.23%
Non-Acquired Loans [Member] | Land - Consumer Lot Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of loans, net of charge-offs and LIP	$ 102,436	$ 108,589
Current	99,717	104,571
Past due	$ 2,719	$ 4,018
Ratio of past due loans to total loans, net of charge-offs and LIPs	2.65%	3.70%
Non-Acquired Loans [Member] | Multi-Family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of loans, net of charge-offs and LIP	$ 1,013,745	$ 892,196
Current	1,012,704	891,372
Past due	$ 1,041	$ 824
Ratio of past due loans to total loans, net of charge-offs and LIPs	0.10%	0.09%
Non-Acquired Loans [Member] | Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of loans, net of charge-offs and LIP	$ 697,960	$ 529,453
Current	696,678	513,409
Past due	$ 1,282	$ 16,044
Ratio of past due loans to total loans, net of charge-offs and LIPs	0.18%	3.03%
Non-Acquired Loans [Member] | Commercial & Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of loans, net of charge-offs and LIP	$ 451,473	$ 379,226
Current	451,404	377,848
Past due	$ 69	$ 1,378
Ratio of past due loans to total loans, net of charge-offs and LIPs	0.02%	0.36%
Non-Acquired Loans [Member] | HELOC [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of loans, net of charge-offs and LIP	$ 122,874	$ 116,262
Current	121,836	115,262
Past due	$ 1,038	$ 1,000
Ratio of past due loans to total loans, net of charge-offs and LIPs	0.84%	0.86%
Non-Acquired Loans [Member] | Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of loans, net of charge-offs and LIP	$ 205,950	$ 132,686
Current	205,259	131,642
Past due	$ 691	$ 1,044
Ratio of past due loans to total loans, net of charge-offs and LIPs	0.34%	0.79%
Non-Acquired Loans [Member] | Financing Receivables, 1 to 29 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	$ 17,267	$ 19,477
Non-Acquired Loans [Member] | Financing Receivables, 1 to 29 Days Past Due [Member] | Single-Family Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	14,525	15,926
Non-Acquired Loans [Member] | Financing Receivables, 1 to 29 Days Past Due [Member] | Construction - Speculative [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0	0
Non-Acquired Loans [Member] | Financing Receivables, 1 to 29 Days Past Due [Member] | Construction - Custom [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	310	836
Non-Acquired Loans [Member] | Financing Receivables, 1 to 29 Days Past Due [Member] | Land - Acquisition & Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	427	155
Non-Acquired Loans [Member] | Financing Receivables, 1 to 29 Days Past Due [Member] | Land - Consumer Lot Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	595	1,246
Non-Acquired Loans [Member] | Financing Receivables, 1 to 29 Days Past Due [Member] | Multi-Family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0	205
Non-Acquired Loans [Member] | Financing Receivables, 1 to 29 Days Past Due [Member] | Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	421	67
Non-Acquired Loans [Member] | Financing Receivables, 1 to 29 Days Past Due [Member] | Commercial & Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	69	53
Non-Acquired Loans [Member] | Financing Receivables, 1 to 29 Days Past Due [Member] | HELOC [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	401	335
Non-Acquired Loans [Member] | Financing Receivables, 1 to 29 Days Past Due [Member] | Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	519	654
Non-Acquired Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	9,491	26,449
Non-Acquired Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Single-Family Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	8,585	9,139
Non-Acquired Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Construction - Speculative [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0	0
Non-Acquired Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Construction - Custom [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	109	0
Non-Acquired Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Land - Acquisition & Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0	0
Non-Acquired Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Land - Consumer Lot Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	85	304
Non-Acquired Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Multi-Family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	421	16
Non-Acquired Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	57	15,118
Non-Acquired Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial & Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0	1,318
Non-Acquired Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | HELOC [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	62	292
Non-Acquired Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	172	262
Non-Acquired Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	54,496	69,887
Non-Acquired Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Single-Family Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	50,103	65,449
Non-Acquired Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Construction - Speculative [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0	0
Non-Acquired Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Construction - Custom [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	355	0
Non-Acquired Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Land - Acquisition & Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0	0
Non-Acquired Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Land - Consumer Lot Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	2,039	2,468
Non-Acquired Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Multi-Family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	620	603
Non-Acquired Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	804	859
Non-Acquired Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Commercial & Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0	7
Non-Acquired Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | HELOC [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	575	373
Non-Acquired Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0	128
Acquired Non-Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of loans, net of charge-offs and LIP	188,552	180,892
Current	187,338	178,945
Past due	$ 1,214	$ 1,947
Ratio of past due loans to total loans, net of charge-offs and LIPs	0.64%	1.08%
Acquired Non-Impaired Loans [Member] | Single-Family Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of loans, net of charge-offs and LIP	$ 12,895	$ 11,716
Current	12,872	11,693
Past due	$ 23	$ 23
Ratio of past due loans to total loans, net of charge-offs and LIPs	0.18%	0.20%
Acquired Non-Impaired Loans [Member] | Land - Acquisition & Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of loans, net of charge-offs and LIP	$ 1,028	$ 905
Current	1,028	905
Past due	$ 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] | Land - Consumer Lot Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of loans, net of charge-offs and LIP	$ 2,472	$ 2,502
Current	2,339	2,132
Past due	$ 133	$ 370
Ratio of past due loans to total loans, net of charge-offs and LIPs	5.38%	14.79%
Acquired Non-Impaired Loans [Member] | Multi-Family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of loans, net of charge-offs and LIP	$ 3,692	$ 2,999
Current	3,692	2,999
Past due	$ 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 loans, net of charge-offs and LIP	$ 101,542	$ 97,715
Current	101,369	96,948
Past due	$ 173	$ 767
Ratio of past due loans to total loans, net of charge-offs and LIPs	0.17%	0.78%
Acquired Non-Impaired Loans [Member] | Commercial & Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of loans, net of charge-offs and LIP	$ 57,612	$ 51,329
Current	57,574	51,229
Past due	$ 38	$ 100
Ratio of past due loans to total loans, net of charge-offs and LIPs	0.07%	0.19%
Acquired Non-Impaired Loans [Member] | HELOC [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of loans, net of charge-offs and LIP	$ 6,414	$ 8,056
Current	5,973	8,056
Past due	$ 441	$ 0
Ratio of past due loans to total loans, net of charge-offs and LIPs	6.88%	0.00%
Acquired Non-Impaired Loans [Member] | Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of loans, net of charge-offs and LIP	$ 2,897	$ 5,670
Current	2,491	4,983
Past due	$ 406	$ 687
Ratio of past due loans to total loans, net of charge-offs and LIPs	14.01%	12.12%
Acquired Non-Impaired Loans [Member] | Financing Receivables, 1 to 29 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	$ 272	$ 126
Acquired Non-Impaired Loans [Member] | Financing Receivables, 1 to 29 Days Past Due [Member] | Single-Family Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0	0
Acquired Non-Impaired Loans [Member] | Financing Receivables, 1 to 29 Days Past Due [Member] | Land - Acquisition & Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0	0
Acquired Non-Impaired Loans [Member] | Financing Receivables, 1 to 29 Days Past Due [Member] | Land - Consumer Lot Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0	0
Acquired Non-Impaired Loans [Member] | Financing Receivables, 1 to 29 Days Past Due [Member] | Multi-Family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0	0
Acquired Non-Impaired Loans [Member] | Financing Receivables, 1 to 29 Days Past Due [Member] | Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0	104
Acquired Non-Impaired Loans [Member] | Financing Receivables, 1 to 29 Days Past Due [Member] | Commercial & Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0	0
Acquired Non-Impaired Loans [Member] | Financing Receivables, 1 to 29 Days Past Due [Member] | HELOC [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	224	0
Acquired Non-Impaired Loans [Member] | Financing Receivables, 1 to 29 Days Past Due [Member] | Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	48	22
Acquired Non-Impaired Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	233	474
Acquired Non-Impaired Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Single-Family Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0	0
Acquired Non-Impaired Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Land - Acquisition & Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0	0
Acquired Non-Impaired Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Land - Consumer Lot Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	16	370
Acquired Non-Impaired Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Multi-Family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0	0
Acquired Non-Impaired Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0	0
Acquired Non-Impaired Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial & Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0	100
Acquired Non-Impaired Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | HELOC [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	217	0
Acquired Non-Impaired Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0	4
Acquired Non-Impaired Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	709	1,347
Acquired Non-Impaired Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Single-Family Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	23	23
Acquired Non-Impaired Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Land - Acquisition & Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0	0
Acquired Non-Impaired Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Land - Consumer Lot Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	117	0
Acquired Non-Impaired Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Multi-Family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0	0
Acquired Non-Impaired Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	173	663
Acquired Non-Impaired Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Commercial & Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	38	0
Acquired Non-Impaired Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | HELOC [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0	0
Acquired Non-Impaired Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	358	661
Credit Impaired Acquired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of loans, net of charge-offs and LIP	92,348	79,288
Current	88,400	76,784
Past due	$ 3,948	$ 2,504
Ratio of past due loans to total loans, net of charge-offs and LIPs	4.28%	3.16%
Credit Impaired Acquired Loans [Member] | Single-Family Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of loans, net of charge-offs and LIP	$ 6,284	$ 325
Current	6,284	325
Past due	$ 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] | Land - Acquisition & Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of loans, net of charge-offs and LIP	$ 1,842	$ 1,581
Current	771	1,581
Past due	$ 1,071	$ 0
Ratio of past due loans to total loans, net of charge-offs and LIPs	58.14%	0.00%
Credit Impaired Acquired Loans [Member] | Land - Consumer Lot Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of loans, net of charge-offs and LIP	$ 495
Current	495
Past due	0
Credit Impaired Acquired Loans [Member] | Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of loans, net of charge-offs and LIP	71,189	$ 63,713
Current	69,448	61,713
Past due	$ 1,741	$ 2,000
Ratio of past due loans to total loans, net of charge-offs and LIPs	2.45%	3.14%
Credit Impaired Acquired Loans [Member] | Commercial & Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of loans, net of charge-offs and LIP	$ 3,881	$ 3,477
Current	3,058	3,470
Past due	$ 823	$ 7
Ratio of past due loans to total loans, net of charge-offs and LIPs	21.21%	0.20%
Credit Impaired Acquired Loans [Member] | HELOC [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of loans, net of charge-offs and LIP	$ 8,549	$ 10,138
Current	8,236	9,641
Past due	$ 313	$ 497
Ratio of past due loans to total loans, net of charge-offs and LIPs	3.66%	4.90%
Credit Impaired Acquired Loans [Member] | Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of loans, net of charge-offs and LIP	$ 108	$ 54
Current	108	54
Past due	$ 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] | Financing Receivables, 1 to 29 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	$ 811	$ 159
Credit Impaired Acquired Loans [Member] | Financing Receivables, 1 to 29 Days Past Due [Member] | Single-Family Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0	0
Credit Impaired Acquired Loans [Member] | Financing Receivables, 1 to 29 Days Past Due [Member] | Land - Acquisition & Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	203	0
Credit Impaired Acquired Loans [Member] | Financing Receivables, 1 to 29 Days Past Due [Member] | Land - Consumer Lot Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0
Credit Impaired Acquired Loans [Member] | Financing Receivables, 1 to 29 Days Past Due [Member] | Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	608	152
Credit Impaired Acquired Loans [Member] | Financing Receivables, 1 to 29 Days Past Due [Member] | Commercial & Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0	7
Credit Impaired Acquired Loans [Member] | Financing Receivables, 1 to 29 Days Past Due [Member] | HELOC [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0	0
Credit Impaired Acquired Loans [Member] | Financing Receivables, 1 to 29 Days Past Due [Member] | Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0	0
Credit Impaired Acquired Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0	984
Credit Impaired Acquired Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Single-Family Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0	0
Credit Impaired Acquired Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Land - Acquisition & Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0	0
Credit Impaired Acquired Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Land - Consumer Lot Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0
Credit Impaired Acquired Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0	909
Credit Impaired Acquired Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial & Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0	0
Credit Impaired Acquired Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | HELOC [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0	75
Credit Impaired Acquired Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0	0
Credit Impaired Acquired Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	3,137	1,361
Credit Impaired Acquired Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Single-Family Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0	0
Credit Impaired Acquired Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Land - Acquisition & Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	868	0
Credit Impaired Acquired Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Land - Consumer Lot Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0
Credit Impaired Acquired Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	1,133	939
Credit Impaired Acquired Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Commercial & Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	823	0
Credit Impaired Acquired Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | HELOC [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	313	422
Credit Impaired Acquired Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	$ 0	$ 0

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-Topic 310



-SubTopic 10



-Section 50



-Paragraph 7A



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