Allowance for Losses on Loans (Internally Assigned Grade) (Details) (USD $)	Jun. 30, 2014	Sep. 30, 2013
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	$ 8,447,709,000	$ 7,990,545,000
Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	8,176,324,000	7,639,717,000
Grade as percentage of total gross loans	96.90%	95.60%
Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	58,031,000	42,499,000
Grade as percentage of total gross loans	0.70%	0.50%
Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	212,804,000	308,329,000
Grade as percentage of total gross loans	2.40%	3.90%
Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	550,000	0
Grade as percentage of total gross loans	0.00%	0.00%
Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Grade as percentage of total gross loans	0.00%	0.00%
Single-Family Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	5,479,111,000	5,373,950,000
Construction - Speculative [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	126,926,000	130,778,000
Construction - Custom [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	372,789,000	302,722,000
Land - Acquisition & Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	91,058,000	81,660,000
Land - Consumer Lot Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	114,573,000	124,984,000
Multi-Family [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	896,799,000	835,598,000
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	693,421,000	625,293,000
Commercial & Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	398,181,000	326,450,000
HELOC [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	136,304,000	133,631,000
Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	138,547,000	55,479,000
Non-Acquired Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	8,167,107,000	7,641,266,000
Non-Acquired Loans [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	7,947,253,000	7,363,923,000
Non-Acquired Loans [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	36,598,000	33,384,000
Non-Acquired Loans [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	183,146,000	243,959,000
Non-Acquired Loans [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	110,000	0
Non-Acquired Loans [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Non-Acquired Loans [Member] | Single-Family Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	5,466,771,000	5,359,149,000
Non-Acquired Loans [Member] | Single-Family Residential [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	5,325,757,000	5,184,101,000
Non-Acquired Loans [Member] | Single-Family Residential [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	2,993,000	4,595,000
Non-Acquired Loans [Member] | Single-Family Residential [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	138,021,000	170,453,000
Non-Acquired Loans [Member] | Single-Family Residential [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Non-Acquired Loans [Member] | Single-Family Residential [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Non-Acquired Loans [Member] | Construction - Speculative [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	126,926,000	130,778,000
Non-Acquired Loans [Member] | Construction - Speculative [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	116,002,000	99,436,000
Non-Acquired Loans [Member] | Construction - Speculative [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	3,199,000
Non-Acquired Loans [Member] | Construction - Speculative [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	10,924,000	28,143,000
Non-Acquired Loans [Member] | Construction - Speculative [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Non-Acquired Loans [Member] | Construction - Speculative [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Non-Acquired Loans [Member] | Construction - Custom [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	372,789,000	302,722,000
Non-Acquired Loans [Member] | Construction - Custom [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	372,789,000	302,722,000
Non-Acquired Loans [Member] | Construction - Custom [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Non-Acquired Loans [Member] | Construction - Custom [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Non-Acquired Loans [Member] | Construction - Custom [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Non-Acquired Loans [Member] | Construction - Custom [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Non-Acquired Loans [Member] | Land - Acquisition & Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	88,319,000	77,775,000
Non-Acquired Loans [Member] | Land - Acquisition & Development [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	79,820,000	64,355,000
Non-Acquired Loans [Member] | Land - Acquisition & Development [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	775,000
Non-Acquired Loans [Member] | Land - Acquisition & Development [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	8,499,000	12,645,000
Non-Acquired Loans [Member] | Land - Acquisition & Development [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Non-Acquired Loans [Member] | Land - Acquisition & Development [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Non-Acquired Loans [Member] | Land - Consumer Lot Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	111,919,000	121,671,000
Non-Acquired Loans [Member] | Land - Consumer Lot Loans [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	111,459,000	121,039,000
Non-Acquired Loans [Member] | Land - Consumer Lot Loans [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Non-Acquired Loans [Member] | Land - Consumer Lot Loans [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	460,000	632,000
Non-Acquired Loans [Member] | Land - Consumer Lot Loans [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Non-Acquired Loans [Member] | Land - Consumer Lot Loans [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Non-Acquired Loans [Member] | Multi-Family [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	893,742,000	831,684,000
Non-Acquired Loans [Member] | Multi-Family [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	888,836,000	819,911,000
Non-Acquired Loans [Member] | Multi-Family [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	2,114,000
Non-Acquired Loans [Member] | Multi-Family [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	4,906,000	9,659,000
Non-Acquired Loans [Member] | Multi-Family [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Non-Acquired Loans [Member] | Multi-Family [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Non-Acquired Loans [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	523,850,000	414,961,000
Non-Acquired Loans [Member] | Commercial Real Estate [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	490,940,000	373,012,000
Non-Acquired Loans [Member] | Commercial Real Estate [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	17,097,000	21,652,000
Non-Acquired Loans [Member] | Commercial Real Estate [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	15,813,000	20,297,000
Non-Acquired Loans [Member] | Commercial Real Estate [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Non-Acquired Loans [Member] | Commercial Real Estate [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Non-Acquired Loans [Member] | Commercial & Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	333,552,000	243,199,000
Non-Acquired Loans [Member] | Commercial & Industrial [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	312,811,000	240,441,000
Non-Acquired Loans [Member] | Commercial & Industrial [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	16,508,000	1,049,000
Non-Acquired Loans [Member] | Commercial & Industrial [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	4,123,000	1,709,000
Non-Acquired Loans [Member] | Commercial & Industrial [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	110,000	0
Non-Acquired Loans [Member] | Commercial & Industrial [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Non-Acquired Loans [Member] | HELOC [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	117,177,000	112,186,000
Non-Acquired Loans [Member] | HELOC [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	116,929,000	112,186,000
Non-Acquired Loans [Member] | HELOC [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Non-Acquired Loans [Member] | HELOC [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	248,000	0
Non-Acquired Loans [Member] | HELOC [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Non-Acquired Loans [Member] | HELOC [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Non-Acquired Loans [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	132,062,000	47,141,000
Non-Acquired Loans [Member] | Consumer [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	131,910,000	46,720,000
Non-Acquired Loans [Member] | Consumer [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Non-Acquired Loans [Member] | Consumer [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	152,000	421,000
Non-Acquired Loans [Member] | Consumer [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Non-Acquired Loans [Member] | Consumer [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Acquired Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	197,254,000	250,379,000
Acquired Loans [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	165,421,000	209,754,000
Acquired Loans [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	16,116,000	5,499,000
Acquired Loans [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	15,683,000	35,126,000
Acquired Loans [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	34,000	0
Acquired Loans [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Acquired Loans [Member] | Single-Family Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	12,014,000	14,468,000
Acquired Loans [Member] | Single-Family Residential [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	12,014,000	14,468,000
Acquired Loans [Member] | Single-Family Residential [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Acquired Loans [Member] | Single-Family Residential [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Acquired Loans [Member] | Single-Family Residential [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Acquired Loans [Member] | Single-Family Residential [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Acquired Loans [Member] | Construction - Speculative [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Acquired Loans [Member] | Construction - Speculative [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Acquired Loans [Member] | Construction - Speculative [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Acquired Loans [Member] | Construction - Speculative [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Acquired Loans [Member] | Construction - Speculative [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Acquired Loans [Member] | Construction - Speculative [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Acquired Loans [Member] | Construction - Custom [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Acquired Loans [Member] | Construction - Custom [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Acquired Loans [Member] | Construction - Custom [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Acquired Loans [Member] | Construction - Custom [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Acquired Loans [Member] | Construction - Custom [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Acquired Loans [Member] | Construction - Custom [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Acquired Loans [Member] | Land - Acquisition & Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	1,069,000	1,489,000
Acquired Loans [Member] | Land - Acquisition & Development [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	663,000	312,000
Acquired Loans [Member] | Land - Acquisition & Development [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Acquired Loans [Member] | Land - Acquisition & Development [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	406,000	1,177,000
Acquired Loans [Member] | Land - Acquisition & Development [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Acquired Loans [Member] | Land - Acquisition & Development [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Acquired Loans [Member] | Land - Consumer Lot Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	2,654,000	3,313,000
Acquired Loans [Member] | Land - Consumer Lot Loans [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	2,654,000	3,313,000
Acquired Loans [Member] | Land - Consumer Lot Loans [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Acquired Loans [Member] | Land - Consumer Lot Loans [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Acquired Loans [Member] | Land - Consumer Lot Loans [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Acquired Loans [Member] | Land - Consumer Lot Loans [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Acquired Loans [Member] | Multi-Family [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	3,057,000	3,914,000
Acquired Loans [Member] | Multi-Family [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	3,057,000	3,227,000
Acquired Loans [Member] | Multi-Family [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Acquired Loans [Member] | Multi-Family [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	687,000
Acquired Loans [Member] | Multi-Family [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Acquired Loans [Member] | Multi-Family [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Acquired Loans [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	103,215,000	133,423,000
Acquired Loans [Member] | Commercial Real Estate [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	89,566,000	105,055,000
Acquired Loans [Member] | Commercial Real Estate [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	2,516,000	4,190,000
Acquired Loans [Member] | Commercial Real Estate [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	11,133,000	24,178,000
Acquired Loans [Member] | Commercial Real Estate [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Acquired Loans [Member] | Commercial Real Estate [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Acquired Loans [Member] | Commercial & Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	60,349,000	75,326,000
Acquired Loans [Member] | Commercial & Industrial [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	42,571,000	64,933,000
Acquired Loans [Member] | Commercial & Industrial [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	13,600,000	1,309,000
Acquired Loans [Member] | Commercial & Industrial [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	4,144,000	9,084,000
Acquired Loans [Member] | Commercial & Industrial [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	34,000	0
Acquired Loans [Member] | Commercial & Industrial [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Acquired Loans [Member] | HELOC [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	8,469,000	10,179,000
Acquired Loans [Member] | HELOC [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	8,469,000	10,179,000
Acquired Loans [Member] | HELOC [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Acquired Loans [Member] | HELOC [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Acquired Loans [Member] | HELOC [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Acquired Loans [Member] | HELOC [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Acquired Loans [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	6,427,000	8,267,000
Acquired Loans [Member] | Consumer [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	6,427,000	8,267,000
Acquired Loans [Member] | Consumer [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Acquired Loans [Member] | Consumer [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Acquired Loans [Member] | Consumer [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Acquired Loans [Member] | Consumer [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Credit Impaired Acquired Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	83,348,000	98,900,000
Credit Impaired Acquired Loans [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	63,650,000	66,040,000
Credit Impaired Acquired Loans [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	5,317,000	3,616,000
Credit Impaired Acquired Loans [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	13,975,000	29,244,000
Credit Impaired Acquired Loans [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	406,000	0
Credit Impaired Acquired Loans [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Credit Impaired Acquired Loans [Member] | Single-Family Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	326,000	333,000
Credit Impaired Acquired Loans [Member] | Single-Family Residential [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	326,000	333,000
Credit Impaired Acquired Loans [Member] | Single-Family Residential [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Credit Impaired Acquired Loans [Member] | Single-Family Residential [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Credit Impaired Acquired Loans [Member] | Single-Family Residential [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Credit Impaired Acquired Loans [Member] | Single-Family Residential [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Credit Impaired Acquired Loans [Member] | Construction - Speculative [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Credit Impaired Acquired Loans [Member] | Construction, Speculative and Land, Acquisition and Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	1,670,000	2,396,000
Credit Impaired Acquired Loans [Member] | Construction, Speculative and Land, Acquisition and Development [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	1,340,000	980,000
Credit Impaired Acquired Loans [Member] | Construction, Speculative and Land, Acquisition and Development [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	461,000
Credit Impaired Acquired Loans [Member] | Construction, Speculative and Land, Acquisition and Development [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	330,000	955,000
Credit Impaired Acquired Loans [Member] | Construction, Speculative and Land, Acquisition and Development [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, 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 receivable, gross	0	0
Credit Impaired Acquired Loans [Member] | Land - Acquisition & Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	1,670,000	2,396,000
Credit Impaired Acquired Loans [Member] | Multi-Family [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Credit Impaired Acquired Loans [Member] | Multi-Family [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Credit Impaired Acquired Loans [Member] | Multi-Family [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Credit Impaired Acquired Loans [Member] | Multi-Family [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Credit Impaired Acquired Loans [Member] | Multi-Family [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Credit Impaired Acquired Loans [Member] | Multi-Family [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Credit Impaired Acquired Loans [Member] | HELOC & Other Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	10,716,000	11,337,000
Credit Impaired Acquired Loans [Member] | HELOC & Other Consumer [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	10,716,000	11,337,000
Credit Impaired Acquired Loans [Member] | HELOC & Other Consumer [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Credit Impaired Acquired Loans [Member] | HELOC & Other Consumer [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Credit Impaired Acquired Loans [Member] | HELOC & Other Consumer [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Credit Impaired Acquired Loans [Member] | HELOC & Other Consumer [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Credit Impaired Acquired Loans [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	66,356,000	76,909,000
Credit Impaired Acquired Loans [Member] | Commercial Real Estate [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	50,556,000	52,509,000
Credit Impaired Acquired Loans [Member] | Commercial Real Estate [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	2,155,000	3,155,000
Credit Impaired Acquired Loans [Member] | Commercial Real Estate [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	13,645,000	21,245,000
Credit Impaired Acquired Loans [Member] | Commercial Real Estate [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Credit Impaired Acquired Loans [Member] | Commercial Real Estate [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Credit Impaired Acquired Loans [Member] | Commercial & Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	4,280,000	7,925,000
Credit Impaired Acquired Loans [Member] | Commercial & Industrial [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	712,000	881,000
Credit Impaired Acquired Loans [Member] | Commercial & Industrial [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	3,162,000	0
Credit Impaired Acquired Loans [Member] | Commercial & Industrial [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	7,044,000
Credit Impaired Acquired Loans [Member] | Commercial & Industrial [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	406,000	0
Credit Impaired Acquired Loans [Member] | Commercial & Industrial [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Credit Impaired Acquired Loans [Member] | HELOC [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	10,658,000	11,266,000
Credit Impaired Acquired Loans [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	58,000	71,000
Loans Collectively Evaluated for Impairment [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	8,072,245,000	7,495,504,000
Loans Collectively Evaluated for Impairment [Member] | Single-Family Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	5,388,306,000	5,262,159,000
Loans Collectively Evaluated for Impairment [Member] | Construction - Speculative [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	116,420,000	115,554,000
Loans Collectively Evaluated for Impairment [Member] | Construction - Custom [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	372,789,000	302,722,000
Loans Collectively Evaluated for Impairment [Member] | Land - Acquisition & Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	86,030,000	67,521,000
Loans Collectively Evaluated for Impairment [Member] | Land - Consumer Lot Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	98,860,000	107,216,000
Loans Collectively Evaluated for Impairment [Member] | Multi-Family [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	888,346,000	824,279,000
Loans Collectively Evaluated for Impairment [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	495,988,000	400,789,000
Loans Collectively Evaluated for Impairment [Member] | Commercial & Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	377,271,000	256,954,000
Loans Collectively Evaluated for Impairment [Member] | HELOC [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	116,174,000	111,169,000
Loans Collectively Evaluated for Impairment [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	132,061,000	47,141,000
Loans Individually Evaluated for Impairment [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	138,620,000	159,564,000
Loans Individually Evaluated for Impairment [Member] | Single-Family Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	78,464,000	96,989,000
Loans Individually Evaluated for Impairment [Member] | Construction - Speculative [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	10,506,000	15,224,000
Loans Individually Evaluated for Impairment [Member] | Construction - Custom [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Loans Individually Evaluated for Impairment [Member] | Land - Acquisition & Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	2,289,000	10,254,000
Loans Individually Evaluated for Impairment [Member] | Land - Consumer Lot Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	13,059,000	14,455,000
Loans Individually Evaluated for Impairment [Member] | Multi-Family [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	5,395,000	7,405,000
Loans Individually Evaluated for Impairment [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	27,863,000	14,172,000
Loans Individually Evaluated for Impairment [Member] | Commercial & Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	40,000	48,000
Loans Individually Evaluated for Impairment [Member] | HELOC [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	1,004,000	1,017,000
Loans Individually Evaluated for Impairment [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	$ 0	$ 0