XML 65 R38.htm IDEA: XBRL DOCUMENT v3.2.0.727

Allowance for Losses on Loans - Internally Assigned Grade (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Sep. 30, 2014
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	$ 8,817,760	$ 8,323,545
Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	$ 8,614,634	$ 8,077,711
Total grade as a % of total net loans	97.70%	97.20%
Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	$ 7,772	$ 37,860
Total grade as a % of total net loans	0.10%	0.40%
Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	$ 195,354	$ 207,916
Total grade as a % of total net loans	2.20%	2.40%
Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	$ 0	$ 58
Total grade as a % of total net loans	0.00%	0.00%
Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	$ 0	$ 0
Total grade as a % of total net loans	0.00%	0.00%
Non-Acquired Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	$ 8,536,860	$ 8,062,943
Non-Acquired Loans [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	8,379,175	7,859,518
Non-Acquired Loans [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	6,033	19,504
Non-Acquired Loans [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	151,652	183,921
Non-Acquired Loans [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Non-Acquired Loans [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Non-Acquired Loans [Member] | Single-Family Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	5,546,941	5,557,756
Non-Acquired Loans [Member] | Single-Family Residential [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	5,456,628	5,424,624
Non-Acquired Loans [Member] | Single-Family Residential [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	2,793
Non-Acquired Loans [Member] | Single-Family Residential [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	90,313	130,339
Non-Acquired Loans [Member] | Single-Family Residential [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Non-Acquired Loans [Member] | Single-Family Residential [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Non-Acquired Loans [Member] | Construction - Speculative [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	117,711	87,035
Non-Acquired Loans [Member] | Construction - Speculative [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	114,706	81,931
Non-Acquired Loans [Member] | Construction - Speculative [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Non-Acquired Loans [Member] | Construction - Speculative [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	3,005	5,104
Non-Acquired Loans [Member] | Construction - Speculative [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Non-Acquired Loans [Member] | Construction - Speculative [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Non-Acquired Loans [Member] | Construction - Custom [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	204,914	192,098
Non-Acquired Loans [Member] | Construction - Custom [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	204,914	192,098
Non-Acquired Loans [Member] | Construction - Custom [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Non-Acquired Loans [Member] | Construction - Custom [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Non-Acquired Loans [Member] | Construction - Custom [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Non-Acquired Loans [Member] | Construction - Custom [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Non-Acquired Loans [Member] | Land - Acquisition & Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	72,856	68,066
Non-Acquired Loans [Member] | Land - Acquisition & Development [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	67,726	61,949
Non-Acquired Loans [Member] | Land - Acquisition & Development [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Non-Acquired Loans [Member] | Land - Acquisition & Development [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	5,130	6,117
Non-Acquired Loans [Member] | Land - Acquisition & Development [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Non-Acquired Loans [Member] | Land - Acquisition & Development [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Non-Acquired Loans [Member] | Land - Consumer Lot Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	102,436	108,589
Non-Acquired Loans [Member] | Land - Consumer Lot Loans [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	102,007	107,979
Non-Acquired Loans [Member] | Land - Consumer Lot Loans [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Non-Acquired Loans [Member] | Land - Consumer Lot Loans [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	429	610
Non-Acquired Loans [Member] | Land - Consumer Lot Loans [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Non-Acquired Loans [Member] | Land - Consumer Lot Loans [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Non-Acquired Loans [Member] | Multi-Family [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	1,013,745	892,195
Non-Acquired Loans [Member] | Multi-Family [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	1,009,785	887,639
Non-Acquired Loans [Member] | Multi-Family [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Non-Acquired Loans [Member] | Multi-Family [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	3,960	4,556
Non-Acquired Loans [Member] | Multi-Family [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Non-Acquired Loans [Member] | Multi-Family [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Non-Acquired Loans [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	697,960	529,304
Non-Acquired Loans [Member] | Commercial Real Estate [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	682,908	495,892
Non-Acquired Loans [Member] | Commercial Real Estate [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	5,068	1,971
Non-Acquired Loans [Member] | Commercial Real Estate [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	9,984	31,441
Non-Acquired Loans [Member] | Commercial Real Estate [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Non-Acquired Loans [Member] | Commercial Real Estate [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Non-Acquired Loans [Member] | Commercial & Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	451,473	379,173
Non-Acquired Loans [Member] | Commercial & Industrial [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	411,925	359,168
Non-Acquired Loans [Member] | Commercial & Industrial [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	965	14,740
Non-Acquired Loans [Member] | Commercial & Industrial [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	38,583	5,265
Non-Acquired Loans [Member] | Commercial & Industrial [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Non-Acquired Loans [Member] | Commercial & Industrial [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Non-Acquired Loans [Member] | HELOC [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	122,874	116,042
Non-Acquired Loans [Member] | HELOC [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	122,626	115,794
Non-Acquired Loans [Member] | HELOC [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Non-Acquired Loans [Member] | HELOC [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	248	248
Non-Acquired Loans [Member] | HELOC [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Non-Acquired Loans [Member] | HELOC [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Non-Acquired Loans [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	205,950	132,685
Non-Acquired Loans [Member] | Consumer [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	205,950	132,444
Non-Acquired Loans [Member] | Consumer [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Non-Acquired Loans [Member] | Consumer [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	241
Non-Acquired Loans [Member] | Consumer [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Non-Acquired Loans [Member] | Consumer [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Acquired Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	188,552	181,314
Acquired Loans [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	169,240	156,913
Acquired Loans [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	1,739	16,213
Acquired Loans [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	17,573	8,130
Acquired Loans [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	58
Acquired Loans [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Acquired Loans [Member] | Single-Family Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	12,895	11,716
Acquired Loans [Member] | Single-Family Residential [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	12,872	11,716
Acquired Loans [Member] | Single-Family Residential [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Acquired Loans [Member] | Single-Family Residential [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	23	0
Acquired Loans [Member] | Single-Family Residential [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Acquired Loans [Member] | Single-Family Residential [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Acquired Loans [Member] | Land - Acquisition & Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	1,028	905
Acquired Loans [Member] | Land - Acquisition & Development [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	651	503
Acquired Loans [Member] | Land - Acquisition & Development [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Acquired Loans [Member] | Land - Acquisition & Development [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	377	402
Acquired Loans [Member] | Land - Acquisition & Development [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Acquired Loans [Member] | Land - Acquisition & Development [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Acquired Loans [Member] | Land - Consumer Lot Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	2,472	2,502
Acquired Loans [Member] | Land - Consumer Lot Loans [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	2,355	2,502
Acquired Loans [Member] | Land - Consumer Lot Loans [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Acquired Loans [Member] | Land - Consumer Lot Loans [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	117	0
Acquired Loans [Member] | Land - Consumer Lot Loans [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Acquired Loans [Member] | Land - Consumer Lot Loans [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Acquired Loans [Member] | Multi-Family [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	3,692	2,999
Acquired Loans [Member] | Multi-Family [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	3,692	2,999
Acquired Loans [Member] | Multi-Family [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Acquired Loans [Member] | Multi-Family [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Acquired Loans [Member] | Multi-Family [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Acquired Loans [Member] | Multi-Family [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Acquired Loans [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	101,542	97,864
Acquired Loans [Member] | Commercial Real Estate [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	86,529	88,940
Acquired Loans [Member] | Commercial Real Estate [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	511	2,571
Acquired Loans [Member] | Commercial Real Estate [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	14,502	6,353
Acquired Loans [Member] | Commercial Real Estate [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Acquired Loans [Member] | Commercial Real Estate [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Acquired Loans [Member] | Commercial & Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	57,612	51,384
Acquired Loans [Member] | Commercial & Industrial [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	54,243	36,309
Acquired Loans [Member] | Commercial & Industrial [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	1,228	13,642
Acquired Loans [Member] | Commercial & Industrial [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	2,141	1,375
Acquired Loans [Member] | Commercial & Industrial [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	58
Acquired Loans [Member] | Commercial & Industrial [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Acquired Loans [Member] | HELOC [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	6,414	8,274
Acquired Loans [Member] | HELOC [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	6,414	8,274
Acquired Loans [Member] | HELOC [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Acquired Loans [Member] | HELOC [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Acquired Loans [Member] | HELOC [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Acquired Loans [Member] | HELOC [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Acquired Loans [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	2,897	5,670
Acquired Loans [Member] | Consumer [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	2,484	5,670
Acquired Loans [Member] | Consumer [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Acquired Loans [Member] | Consumer [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	413	0
Acquired Loans [Member] | Consumer [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Acquired Loans [Member] | Consumer [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Credit Impaired Acquired Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	92,348	79,288
Credit Impaired Acquired Loans [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	66,219	61,280
Credit Impaired Acquired Loans [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	2,143
Credit Impaired Acquired Loans [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	26,129	15,865
Credit Impaired Acquired Loans [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Credit Impaired Acquired Loans [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Credit Impaired Acquired Loans [Member] | Single-Family Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	320	325
Credit Impaired Acquired Loans [Member] | Single-Family Residential [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	320	325
Credit Impaired Acquired Loans [Member] | Single-Family Residential [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Credit Impaired Acquired Loans [Member] | Single-Family Residential [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Credit Impaired Acquired Loans [Member] | Single-Family Residential [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Credit Impaired Acquired Loans [Member] | Single-Family Residential [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Credit Impaired Acquired Loans [Member] | Construction, Speculative and Land, Acquisition and Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	8,960	1,581
Credit Impaired Acquired Loans [Member] | Construction, Speculative and Land, Acquisition and Development [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	6,655	1,251
Credit Impaired Acquired Loans [Member] | Construction, Speculative and Land, Acquisition and Development [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Credit Impaired Acquired Loans [Member] | Construction, Speculative and Land, Acquisition and Development [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	2,305	330
Credit Impaired Acquired Loans [Member] | Construction, Speculative and Land, Acquisition and Development [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Credit Impaired Acquired Loans [Member] | Construction, Speculative and Land, Acquisition and Development [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Credit Impaired Acquired Loans [Member] | Multi-Family [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Credit Impaired Acquired Loans [Member] | Multi-Family [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Credit Impaired Acquired Loans [Member] | Multi-Family [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Credit Impaired Acquired Loans [Member] | Multi-Family [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Credit Impaired Acquired Loans [Member] | Multi-Family [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Credit Impaired Acquired Loans [Member] | Multi-Family [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Credit Impaired Acquired Loans [Member] | HELOC & Other Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	9,236	10,194
Credit Impaired Acquired Loans [Member] | HELOC & Other Consumer [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	8,598	10,194
Credit Impaired Acquired Loans [Member] | HELOC & Other Consumer [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Credit Impaired Acquired Loans [Member] | HELOC & Other Consumer [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	638	0
Credit Impaired Acquired Loans [Member] | HELOC & Other Consumer [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Credit Impaired Acquired Loans [Member] | HELOC & Other Consumer [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Credit Impaired Acquired Loans [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	70,526	63,712
Credit Impaired Acquired Loans [Member] | Commercial Real Estate [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	47,715	48,867
Credit Impaired Acquired Loans [Member] | Commercial Real Estate [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	2,143
Credit Impaired Acquired Loans [Member] | Commercial Real Estate [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	22,811	12,702
Credit Impaired Acquired Loans [Member] | Commercial Real Estate [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Credit Impaired Acquired Loans [Member] | Commercial Real Estate [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Credit Impaired Acquired Loans [Member] | Commercial & Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	3,306	3,476
Credit Impaired Acquired Loans [Member] | Commercial & Industrial [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	2,931	643
Credit Impaired Acquired Loans [Member] | Commercial & Industrial [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Credit Impaired Acquired Loans [Member] | Commercial & Industrial [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	375	2,833
Credit Impaired Acquired Loans [Member] | Commercial & Industrial [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	0	0
Credit Impaired Acquired Loans [Member] | Commercial & Industrial [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, net of loans in process, gross	$ 0	$ 0

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Grade as Percentage of Total Gross Loans

+ References

No definition available.

+ Details

Name:	wfsl_GradeAsPercentageOfTotalGrossLoans
Namespace Prefix:	wfsl_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Loans and Leases Receivable, Net of Loans in Process, Gross

+ References

No definition available.

+ Details

Name:	wfsl_LoansandLeasesReceivableNetofLoansinProcessGross
Namespace Prefix:	wfsl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=us-gaap_PassMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=us-gaap_SpecialMentionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=us-gaap_SubstandardMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=us-gaap_DoubtfulMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=wfsl_LossMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_BusinessAcquisitionAxis=wfsl_NonAcquiredLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ResidentialPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=wfsl_ConstructionSpeculativeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=wfsl_ConstructionCustomMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=wfsl_LandAcquisitionAndDevelopmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=wfsl_LandConsumerLotLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=wfsl_MultiFamilyHousingPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_CommercialRealEstatePortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=wfsl_CommercialAndIndustrialLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=wfsl_HomeEquityLineOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ConsumerPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_BusinessAcquisitionAxis=wfsl_AcquiredLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_BusinessAcquisitionAxis=wfsl_CreditImpairedAcquiredLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=wfsl_ConstructionSpeculativeAndLandAcquisitionAndDevelopmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=wfsl_HomeEquityLineOfCreditAndOtherConsumerLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: