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Loans - Loans Held-for-Investment by Performing and Non-Performing Loans (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net $ 2,987,067 $ 2,678,877
Non-Performing Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 9,433 9,162
Non-Performing Loans 9,951 9,195
Total Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 3,419,720 3,225,027
Total Loans | Performing (Accruing) Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 3,409,769 3,215,832
Total Loans | Non-Performing Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 9,951 9,195
Loans held-for-investment    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 2,987,067 2,678,877
Loans held-for-investment | Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 2,084 1,520
Loans held-for-investment | Other | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 2,084 1,520
Loans held-for-investment | Real Estate | Commercial mortgage    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 529,287 499,860
Loans held-for-investment | Real Estate | Commercial mortgage | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 79,855 79,312
Loans held-for-investment | Real Estate | Commercial mortgage | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 449,432 420,548
Loans held-for-investment | Real Estate | Commercial mortgage | Pass | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 79,485 78,917
Loans held-for-investment | Real Estate | Commercial mortgage | Pass | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 440,065 409,155
Loans held-for-investment | Real Estate | Commercial mortgage | Substandard | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 8,275 10,256
Loans held-for-investment | Real Estate | Commercial mortgage | Special Mention | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 370 395
Loans held-for-investment | Real Estate | Commercial mortgage | Special Mention | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 1,092 1,137
Loans held-for-investment | Real Estate | One-to-four family residential mortgage    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 85,355 92,433
Loans held-for-investment | Real Estate | One-to-four family residential mortgage | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 55,060 57,065
Loans held-for-investment | Real Estate | One-to-four family residential mortgage | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 30,295 35,368
Loans held-for-investment | Real Estate | One-to-four family residential mortgage | Pass | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 52,886 54,912
Loans held-for-investment | Real Estate | One-to-four family residential mortgage | Pass | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 29,967 34,808
Loans held-for-investment | Real Estate | One-to-four family residential mortgage | Substandard | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 1,397 1,406
Loans held-for-investment | Real Estate | One-to-four family residential mortgage | Substandard | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 328 560
Loans held-for-investment | Real Estate | One-to-four family residential mortgage | Special Mention | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 777 747
Loans held-for-investment | Real Estate | Construction and land    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 38,303 26,613
Loans held-for-investment | Real Estate | Construction and land | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 38,303 26,613
Loans held-for-investment | Real Estate | Multifamily    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 2,199,734 1,933,946
Loans held-for-investment | Real Estate | Multifamily | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 233,251 170,832
Loans held-for-investment | Real Estate | Multifamily | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 1,966,483 1,763,114
Loans held-for-investment | Real Estate | Multifamily | Pass | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 232,950 170,832
Loans held-for-investment | Real Estate | Multifamily | Pass | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 1,960,984 1,756,882
Loans held-for-investment | Real Estate | Multifamily | Substandard | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 5,203 5,619
Loans held-for-investment | Real Estate | Multifamily | Special Mention | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 296 613
Loans held-for-investment | Real Estate | Home equity and lines of credit    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 86,848 80,315
Loans held-for-investment | Real Estate | Home equity and lines of credit | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 86,547 80,077
Loans held-for-investment | Real Estate | Home equity and lines of credit | Substandard    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 287 211
Loans held-for-investment | Real Estate | Home equity and lines of credit | Special Mention    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 14 27
Loans held-for-investment | Commercial and Industrial    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 45,456 44,190
Loans held-for-investment | Commercial and Industrial | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 45,075 43,640
Loans held-for-investment | Commercial and Industrial | Substandard    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 80 120
Loans held-for-investment | Commercial and Industrial | Special Mention    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 301 430
Loans held-for-investment | Performing (Accruing) Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 2,983,859 2,675,361
Loans held-for-investment | Performing (Accruing) Loans | Multifamily | Substandard | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 301  
Loans held-for-investment | Performing (Accruing) Loans | Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 2,084 1,520
Loans held-for-investment | Performing (Accruing) Loans | Other | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 2,084 1,520
Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Commercial mortgage    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 526,871 496,985
Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Commercial mortgage | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 79,855 79,312
Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Commercial mortgage | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 447,016 417,673
Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Commercial mortgage | Pass | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 79,485 78,917
Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Commercial mortgage | Pass | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 440,065 409,155
Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Commercial mortgage | Substandard | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 5,859 7,381
Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Commercial mortgage | Special Mention | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 370 395
Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Commercial mortgage | Special Mention | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 1,092 1,137
Loans held-for-investment | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 84,719 91,891
Loans held-for-investment | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 54,453 56,555
Loans held-for-investment | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 30,266 35,336
Loans held-for-investment | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Pass | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 52,886 54,912
Loans held-for-investment | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Pass | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 29,967 34,808
Loans held-for-investment | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Substandard | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 790 896
Loans held-for-investment | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Substandard | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 299 528
Loans held-for-investment | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Special Mention | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 777 747
Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Construction and land    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 38,303 26,613
Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Construction and land | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 38,303 26,613
Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Multifamily    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 2,199,734 1,933,946
Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Multifamily | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 233,251 170,832
Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Multifamily | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 1,966,483 1,763,114
Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Multifamily | Pass | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 232,950 170,832
Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Multifamily | Pass | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 1,960,984 1,756,882
Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Multifamily | Substandard | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 5,203 5,619
Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Multifamily | Special Mention | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 296 613
Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 86,692 80,241
Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 86,547 80,077
Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Substandard    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 131 137
Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Special Mention    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 14 27
Loans held-for-investment | Performing (Accruing) Loans | Commercial and Industrial    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 45,456 44,165
Loans held-for-investment | Performing (Accruing) Loans | Commercial and Industrial | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 45,075 43,640
Loans held-for-investment | Performing (Accruing) Loans | Commercial and Industrial | Substandard    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 80 95
Loans held-for-investment | Performing (Accruing) Loans | Commercial and Industrial | Special Mention    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 301 430
Loans held-for-investment | Non-Performing Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 3,208 3,516
Loans held-for-investment | Non-Performing Loans | Multifamily | Substandard | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0  
Total Loans Receivable, net 301  
Loans held-for-investment | Non-Performing Loans | Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans held-for-investment | Non-Performing Loans | Other | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans held-for-investment | Non-Performing Loans | Real Estate | Commercial mortgage    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 2,416 2,875
Loans held-for-investment | Non-Performing Loans | Real Estate | Commercial mortgage | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans held-for-investment | Non-Performing Loans | Real Estate | Commercial mortgage | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 2,416 2,875
Loans held-for-investment | Non-Performing Loans | Real Estate | Commercial mortgage | Pass | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans held-for-investment | Non-Performing Loans | Real Estate | Commercial mortgage | Pass | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans held-for-investment | Non-Performing Loans | Real Estate | Commercial mortgage | Substandard | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 2,416 2,875
Loans held-for-investment | Non-Performing Loans | Real Estate | Commercial mortgage | Special Mention | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans held-for-investment | Non-Performing Loans | Real Estate | Commercial mortgage | Special Mention | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans held-for-investment | Non-Performing Loans | Real Estate | One-to-four family residential mortgage    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 636 542
Loans held-for-investment | Non-Performing Loans | Real Estate | One-to-four family residential mortgage | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 607 510
Loans held-for-investment | Non-Performing Loans | Real Estate | One-to-four family residential mortgage | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 29 32
Loans held-for-investment | Non-Performing Loans | Real Estate | One-to-four family residential mortgage | Pass | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans held-for-investment | Non-Performing Loans | Real Estate | One-to-four family residential mortgage | Pass | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans held-for-investment | Non-Performing Loans | Real Estate | One-to-four family residential mortgage | Substandard | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 607 510
Loans held-for-investment | Non-Performing Loans | Real Estate | One-to-four family residential mortgage | Substandard | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 29 32
Loans held-for-investment | Non-Performing Loans | Real Estate | One-to-four family residential mortgage | Special Mention | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans held-for-investment | Non-Performing Loans | Real Estate | Construction and land    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans held-for-investment | Non-Performing Loans | Real Estate | Construction and land | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans held-for-investment | Non-Performing Loans | Real Estate | Multifamily    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans held-for-investment | Non-Performing Loans | Real Estate | Multifamily | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans held-for-investment | Non-Performing Loans | Real Estate | Multifamily | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans held-for-investment | Non-Performing Loans | Real Estate | Multifamily | Pass | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans held-for-investment | Non-Performing Loans | Real Estate | Multifamily | Pass | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans held-for-investment | Non-Performing Loans | Real Estate | Multifamily | Substandard | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans held-for-investment | Non-Performing Loans | Real Estate | Multifamily | Special Mention | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans held-for-investment | Non-Performing Loans | Real Estate | Home equity and lines of credit    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 156 74
Loans held-for-investment | Non-Performing Loans | Real Estate | Home equity and lines of credit | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans held-for-investment | Non-Performing Loans | Real Estate | Home equity and lines of credit | Substandard    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 156 74
Loans held-for-investment | Non-Performing Loans | Real Estate | Home equity and lines of credit | Special Mention    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans held-for-investment | Non-Performing Loans | Commercial and Industrial    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 25
Loans held-for-investment | Non-Performing Loans | Commercial and Industrial | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans held-for-investment | Non-Performing Loans | Commercial and Industrial | Substandard    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 25
Loans held-for-investment | Non-Performing Loans | Commercial and Industrial | Special Mention    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans acquired    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 432,653 546,150
Loans acquired | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net   6
Loans acquired | Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 0  
Loans acquired | Real Estate | Commercial mortgage    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 113,027 133,263
Loans acquired | Real Estate | Commercial mortgage | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 37,351 43,767
Loans acquired | Real Estate | Commercial mortgage | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 75,676 89,496
Loans acquired | Real Estate | Commercial mortgage | Pass | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 35,460 41,071
Loans acquired | Real Estate | Commercial mortgage | Pass | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 60,311 74,735
Loans acquired | Real Estate | Commercial mortgage | Substandard | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 703 1,617
Loans acquired | Real Estate | Commercial mortgage | Substandard | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 14,767 10,318
Loans acquired | Real Estate | Commercial mortgage | Special Mention | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 1,188 1,079
Loans acquired | Real Estate | Commercial mortgage | Special Mention | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 598 4,443
Loans acquired | Real Estate | One-to-four family residential mortgage    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 187,975 225,877
Loans acquired | Real Estate | One-to-four family residential mortgage | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 173,766 206,127
Loans acquired | Real Estate | One-to-four family residential mortgage | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 14,209 19,750
Loans acquired | Real Estate | One-to-four family residential mortgage | Pass | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 172,955 205,270
Loans acquired | Real Estate | One-to-four family residential mortgage | Pass | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 14,116 19,504
Loans acquired | Real Estate | One-to-four family residential mortgage | Substandard | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 426 442
Loans acquired | Real Estate | One-to-four family residential mortgage | Substandard | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 93 246
Loans acquired | Real Estate | One-to-four family residential mortgage | Special Mention | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 385 415
Loans acquired | Real Estate | Construction and land    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 2,537 12,003
Loans acquired | Real Estate | Construction and land | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 2,537  
Loans acquired | Real Estate | Construction and land | Substandard    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net   12,003
Loans acquired | Real Estate | Multifamily    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 108,417 145,485
Loans acquired | Real Estate | Multifamily | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 105,367 137,345
Loans acquired | Real Estate | Multifamily | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 3,050 8,140
Loans acquired | Real Estate | Multifamily | Pass | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 105,327 137,141
Loans acquired | Real Estate | Multifamily | Pass | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 2,653 7,726
Loans acquired | Real Estate | Multifamily | Substandard | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 40 152
Loans acquired | Real Estate | Multifamily | Substandard | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 397  
Loans acquired | Real Estate | Multifamily | Special Mention | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net   52
Loans acquired | Real Estate | Multifamily | Special Mention | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net   414
Loans acquired | Real Estate | Home equity and lines of credit    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 12,008 17,583
Loans acquired | Real Estate | Home equity and lines of credit | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 11,892 17,427
Loans acquired | Real Estate | Home equity and lines of credit | Substandard    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 116 156
Loans acquired | Commercial and Industrial    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 8,689 11,933
Loans acquired | Commercial and Industrial | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 8,689 11,933
Loans acquired | Performing (Accruing) Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 425,910 540,471
Loans acquired | Performing (Accruing) Loans | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans   6
Loans acquired | Performing (Accruing) Loans | Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0  
Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial mortgage    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 107,268 128,847
Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial mortgage | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 37,017 43,486
Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial mortgage | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 70,251 85,361
Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial mortgage | Pass | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 35,460 41,071
Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial mortgage | Pass | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 60,311 74,735
Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial mortgage | Substandard | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 369 1,336
Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial mortgage | Substandard | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 9,342 6,183
Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial mortgage | Special Mention | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 1,188 1,079
Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial mortgage | Special Mention | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 598 4,443
Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 187,456 225,257
Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 173,340 205,753
Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 14,116 19,504
Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Pass | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 172,955 205,270
Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Pass | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 14,116 19,504
Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Substandard | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 68
Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Substandard | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Special Mention | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 385 415
Loans acquired | Performing (Accruing) Loans | Real Estate | Construction and land    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 2,537 12,003
Loans acquired | Performing (Accruing) Loans | Real Estate | Construction and land | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 2,537  
Loans acquired | Performing (Accruing) Loans | Real Estate | Construction and land | Substandard    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans   12,003
Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 107,980 144,919
Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 105,327 137,193
Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 2,653 7,726
Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Pass | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 105,327 137,141
Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Pass | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 2,653 7,726
Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Substandard | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Substandard | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0  
Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Special Mention | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans   52
Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Special Mention | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans   0
Loans acquired | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 11,980 17,506
Loans acquired | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 11,892 17,427
Loans acquired | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Substandard    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 88 79
Loans acquired | Performing (Accruing) Loans | Commercial and Industrial    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 8,689 11,933
Loans acquired | Performing (Accruing) Loans | Commercial and Industrial | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 8,689 11,933
Loans acquired | Non-Performing Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 6,743 5,679
Loans acquired | Non-Performing Loans | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans   0
Loans acquired | Non-Performing Loans | Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0  
Loans acquired | Non-Performing Loans | Real Estate | Commercial mortgage    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 5,759 4,416
Loans acquired | Non-Performing Loans | Real Estate | Commercial mortgage | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 334 281
Loans acquired | Non-Performing Loans | Real Estate | Commercial mortgage | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 5,425 4,135
Loans acquired | Non-Performing Loans | Real Estate | Commercial mortgage | Pass | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans acquired | Non-Performing Loans | Real Estate | Commercial mortgage | Pass | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans acquired | Non-Performing Loans | Real Estate | Commercial mortgage | Substandard | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 334 281
Loans acquired | Non-Performing Loans | Real Estate | Commercial mortgage | Substandard | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 5,425 4,135
Loans acquired | Non-Performing Loans | Real Estate | Commercial mortgage | Special Mention | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans acquired | Non-Performing Loans | Real Estate | Commercial mortgage | Special Mention | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans acquired | Non-Performing Loans | Real Estate | One-to-four family residential mortgage    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 519 620
Loans acquired | Non-Performing Loans | Real Estate | One-to-four family residential mortgage | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 426 374
Loans acquired | Non-Performing Loans | Real Estate | One-to-four family residential mortgage | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 93 246
Loans acquired | Non-Performing Loans | Real Estate | One-to-four family residential mortgage | Pass | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans acquired | Non-Performing Loans | Real Estate | One-to-four family residential mortgage | Pass | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans acquired | Non-Performing Loans | Real Estate | One-to-four family residential mortgage | Substandard | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 426 374
Loans acquired | Non-Performing Loans | Real Estate | One-to-four family residential mortgage | Substandard | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 93 246
Loans acquired | Non-Performing Loans | Real Estate | One-to-four family residential mortgage | Special Mention | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans acquired | Non-Performing Loans | Real Estate | Construction and land    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans acquired | Non-Performing Loans | Real Estate | Construction and land | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0  
Loans acquired | Non-Performing Loans | Real Estate | Construction and land | Substandard    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans   0
Loans acquired | Non-Performing Loans | Real Estate | Multifamily    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 437 566
Loans acquired | Non-Performing Loans | Real Estate | Multifamily | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 40 152
Loans acquired | Non-Performing Loans | Real Estate | Multifamily | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 397 414
Loans acquired | Non-Performing Loans | Real Estate | Multifamily | Pass | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans acquired | Non-Performing Loans | Real Estate | Multifamily | Pass | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans acquired | Non-Performing Loans | Real Estate | Multifamily | Substandard | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 40 152
Loans acquired | Non-Performing Loans | Real Estate | Multifamily | Substandard | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 397  
Loans acquired | Non-Performing Loans | Real Estate | Multifamily | Special Mention | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans   0
Loans acquired | Non-Performing Loans | Real Estate | Multifamily | Special Mention | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans   414
Loans acquired | Non-Performing Loans | Real Estate | Home equity and lines of credit    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 28 77
Loans acquired | Non-Performing Loans | Real Estate | Home equity and lines of credit | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans acquired | Non-Performing Loans | Real Estate | Home equity and lines of credit | Substandard    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 28 77
Loans acquired | Non-Performing Loans | Commercial and Industrial    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans acquired | Non-Performing Loans | Commercial and Industrial | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
0-29 Days Past Due | Non-Performing Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 3,839 440
0-29 Days Past Due | Total Loans | Performing (Accruing) Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 3,401,563 3,207,270
0-29 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 2,980,106 2,671,140
0-29 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Multifamily | Substandard | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 301  
0-29 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 2,058 1,518
0-29 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Other | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 2,058 1,518
0-29 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Commercial mortgage    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 525,326 496,047
0-29 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Commercial mortgage | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 79,753 78,699
0-29 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Commercial mortgage | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 445,573 417,348
0-29 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Commercial mortgage | Pass | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 79,383 78,699
0-29 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Commercial mortgage | Pass | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 439,253 408,830
0-29 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Commercial mortgage | Substandard | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 5,228 7,381
0-29 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Commercial mortgage | Special Mention | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 370 0
0-29 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Commercial mortgage | Special Mention | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 1,092 1,137
0-29 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 83,587 90,576
0-29 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 53,547 55,472
0-29 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 30,040 35,104
0-29 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Pass | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 52,757 54,576
0-29 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Pass | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 29,741 34,576
0-29 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Substandard | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 790 896
0-29 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Substandard | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 299 528
0-29 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Special Mention | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
0-29 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Construction and land    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 38,156 26,613
0-29 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Construction and land | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 38,156 26,613
0-29 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Multifamily    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 2,199,187 1,931,980
0-29 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Multifamily | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 232,959 170,534
0-29 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Multifamily | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 1,966,228 1,761,446
0-29 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Multifamily | Pass | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 232,658 170,534
0-29 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Multifamily | Pass | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 1,960,729 1,756,443
0-29 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Multifamily | Substandard | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 5,203 4,390
0-29 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Multifamily | Special Mention | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 296 613
0-29 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 86,525 80,241
0-29 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 86,380 80,077
0-29 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Substandard    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 131 137
0-29 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Special Mention    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 14 27
0-29 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Commercial and Industrial    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 45,267 44,165
0-29 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Commercial and Industrial | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 44,886 43,640
0-29 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Commercial and Industrial | Substandard    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 80 95
0-29 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Commercial and Industrial | Special Mention    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 301 430
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 421,457 536,130
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans   6
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0  
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial mortgage    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 103,363 127,408
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial mortgage | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 36,536 43,335
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial mortgage | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 66,827 84,073
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial mortgage | Pass | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 35,173 41,071
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial mortgage | Pass | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 60,311 73,986
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial mortgage | Substandard | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 369 1,185
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial mortgage | Substandard | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 6,382 5,772
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial mortgage | Special Mention | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 994 1,079
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial mortgage | Special Mention | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 134 4,315
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 186,998 222,452
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 172,882 202,948
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 14,116 19,504
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Pass | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 172,882 202,471
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Pass | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 14,116 19,504
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Substandard | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 62
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Substandard | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Special Mention | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 415
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Construction and land    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 2,537 12,003
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Construction and land | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 2,537  
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Construction and land | Substandard    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans   12,003
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 107,980 144,867
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 105,327 137,141
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 2,653 7,726
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Pass | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 105,327 137,141
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Pass | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 2,653 7,726
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Substandard | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Substandard | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0  
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Special Mention | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans   0
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Special Mention | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans   0
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 11,930 17,506
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 11,842 17,427
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Substandard    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 88 79
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Commercial and Industrial    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 8,649 11,888
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Commercial and Industrial | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 8,649 11,888
30-89 Days Past Due | Non-Performing Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 493 2,128
30-89 Days Past Due | Total Loans | Performing (Accruing) Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 8,206 8,562
30-89 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 3,753 4,221
30-89 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Multifamily | Substandard | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0  
30-89 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 26 2
30-89 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Other | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 26 2
30-89 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Commercial mortgage    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 1,545 938
30-89 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Commercial mortgage | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 102 613
30-89 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Commercial mortgage | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 1,443 325
30-89 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Commercial mortgage | Pass | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 102 218
30-89 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Commercial mortgage | Pass | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 812 325
30-89 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Commercial mortgage | Substandard | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 631 0
30-89 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Commercial mortgage | Special Mention | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 395
30-89 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Commercial mortgage | Special Mention | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
30-89 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 1,132 1,315
30-89 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 906 1,083
30-89 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 226 232
30-89 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Pass | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 129 336
30-89 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Pass | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 226 232
30-89 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Substandard | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
30-89 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Substandard | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
30-89 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Special Mention | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 777 747
30-89 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Construction and land    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 147 0
30-89 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Construction and land | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 147 0
30-89 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Multifamily    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 547 1,966
30-89 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Multifamily | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 292 298
30-89 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Multifamily | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 255 1,668
30-89 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Multifamily | Pass | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 292 298
30-89 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Multifamily | Pass | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 255 439
30-89 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Multifamily | Substandard | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 1,229
30-89 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Multifamily | Special Mention | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
30-89 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 167 0
30-89 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 167 0
30-89 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Substandard    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
30-89 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Special Mention    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
30-89 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Commercial and Industrial    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 189 0
30-89 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Commercial and Industrial | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 189 0
30-89 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Commercial and Industrial | Substandard    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
30-89 Days Past Due | Loans held-for-investment | Performing (Accruing) Loans | Commercial and Industrial | Special Mention    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 4,453 4,341
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans   0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0  
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial mortgage    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 3,905 1,439
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial mortgage | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 481 151
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial mortgage | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 3,424 1,288
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial mortgage | Pass | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 287 0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial mortgage | Pass | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 749
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial mortgage | Substandard | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 151
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial mortgage | Substandard | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 2,960 411
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial mortgage | Special Mention | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 194 0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial mortgage | Special Mention | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 464 128
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 458 2,805
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 458 2,805
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Pass | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 73 2,799
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Pass | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Substandard | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 6
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Substandard | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Special Mention | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 385 0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Construction and land    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Construction and land | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0  
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Construction and land | Substandard    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans   0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 52
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 52
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Pass | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Pass | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Substandard | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Substandard | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0  
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Special Mention | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans   52
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Special Mention | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans   0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 50 0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 50 0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Substandard    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Commercial and Industrial    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 40 45
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Commercial and Industrial | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans $ 40 $ 45