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Loans (Analysis of the Aged Loan Portfolio) (Details) - USD ($) $ in Thousands | Mar. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Nonaccrual Loans | $ 52,615 | $ 54,842
Loans, Excluding Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current Loans | 8,364,660 | 8,218,651
Past Due Loans | 15,266 | 28,258
Nonaccrual Loans | 52,615 | 54,842
Total Loans | 8,432,541 | 8,301,751
Secured Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Nonaccrual Loans | 35,577 | 35,504
Secured Loans [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current Loans | 3,337,206 | 3,267,709
Past Due Loans | 8,451 | 9,488
Nonaccrual Loans | 35,577 | 35,504
Total Loans | 3,381,234 | 3,312,701
Unsecured Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Nonaccrual Loans | 0 | 9
Unsecured Loans [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current Loans | 114,087 | 111,868
Past Due Loans | 1,130 | 240
Nonaccrual Loans | 0 | 9
Total Loans | 115,217 | 112,117
One-to-Four Family Residential [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Nonaccrual Loans | 923 | 1,158
One-to-Four Family Residential [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current Loans | 280,727 | 233,941
Past Due Loans | 680 | 927
Nonaccrual Loans | 923 | 1,158
Total Loans | 282,330 | 236,026
Commercial Land [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Nonaccrual Loans | 2,570 | 2,261
Commercial Land [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current Loans | 292,125 | 283,416
Past Due Loans | 225 | 0
Nonaccrual Loans | 2,570 | 2,261
Total Loans | 294,920 | 285,677
Income Property Multifamily [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Nonaccrual Loans | 1,108 | 2,721
Income Property Multifamily [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current Loans | 1,959,361 | 1,910,505
Past Due Loans | 2,140 | 7,250
Nonaccrual Loans | 1,108 | 2,721
Total Loans | 1,962,609 | 1,920,476
Owner Occupied [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Nonaccrual Loans | 9,623 | 9,922
Owner Occupied [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current Loans | 1,627,738 | 1,606,085
Past Due Loans | 1,198 | 1,744
Nonaccrual Loans | 9,623 | 9,922
Total Loans | 1,638,559 | 1,617,751
Land And Acquisition [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Nonaccrual Loans | 0 | 318
Land And Acquisition [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current Loans | 3,619 | 4,099
Past Due Loans | 0 | 0
Nonaccrual Loans | 0 | 318
Total Loans | 3,619 | 4,417
Residential Construction [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current Loans | 203,318 | 212,303
Past Due Loans | 0 | 93
Nonaccrual Loans | 0 | 0
Total Loans | 203,318 | 212,396
Income Property Multifamily Construction [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current Loans | 163,674 | 194,912
Past Due Loans | 0 | 0
Nonaccrual Loans | 0 | 0
Total Loans | 163,674 | 194,912
Owner Occupied Construction [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current Loans | 74,736 | 79,805
Past Due Loans | 0 | 7,258
Nonaccrual Loans | 0 | 0
Total Loans | 74,736 | 87,063
Consumer Portfolio Segment [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Nonaccrual Loans | 2,814 | 2,949
Consumer Portfolio Segment [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current Loans | 308,069 | 314,008
Past Due Loans | 1,442 | 1,258
Nonaccrual Loans | 2,814 | 2,949
Total Loans | 312,325 | 318,215
Financing Receivables, 60 to 89 Days Past Due [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due Loans | 2,984 | 6,299
Financing Receivables, 60 to 89 Days Past Due [Member] | Secured Loans [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due Loans | 1,603 | 3,624
Financing Receivables, 60 to 89 Days Past Due [Member] | Unsecured Loans [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due Loans | 1,098 | 0
Financing Receivables, 60 to 89 Days Past Due [Member] | One-to-Four Family Residential [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due Loans | 0 | 233
Financing Receivables, 60 to 89 Days Past Due [Member] | Commercial Land [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due Loans | 0 | 0
Financing Receivables, 60 to 89 Days Past Due [Member] | Income Property Multifamily [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due Loans | 0 | 2,241
Financing Receivables, 60 to 89 Days Past Due [Member] | Owner Occupied [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due Loans | 75 | 0
Financing Receivables, 60 to 89 Days Past Due [Member] | Land And Acquisition [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due Loans | 0 | 0
Financing Receivables, 60 to 89 Days Past Due [Member] | Residential Construction [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due Loans | 0 | 0
Financing Receivables, 60 to 89 Days Past Due [Member] | Income Property Multifamily Construction [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due Loans | 0 | 0
Financing Receivables, 60 to 89 Days Past Due [Member] | Owner Occupied Construction [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due Loans | 0 | 0
Financing Receivables, 60 to 89 Days Past Due [Member] | Consumer Portfolio Segment [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due Loans | 208 | 201
Financing Receivables, 30 to 59 Days Past Due [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due Loans | 12,282 | 21,959
Financing Receivables, 30 to 59 Days Past Due [Member] | Secured Loans [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due Loans | 6,848 | 5,864
Financing Receivables, 30 to 59 Days Past Due [Member] | Unsecured Loans [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due Loans | 32 | 240
Financing Receivables, 30 to 59 Days Past Due [Member] | One-to-Four Family Residential [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due Loans | 680 | 694
Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial Land [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due Loans | 225 | 0
Financing Receivables, 30 to 59 Days Past Due [Member] | Income Property Multifamily [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due Loans | 2,140 | 5,009
Financing Receivables, 30 to 59 Days Past Due [Member] | Owner Occupied [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due Loans | 1,123 | 1,744
Financing Receivables, 30 to 59 Days Past Due [Member] | Land And Acquisition [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due Loans | 0 | 0
Financing Receivables, 30 to 59 Days Past Due [Member] | Residential Construction [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due Loans | 0 | 93
Financing Receivables, 30 to 59 Days Past Due [Member] | Income Property Multifamily Construction [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due Loans | 0 | 0
Financing Receivables, 30 to 59 Days Past Due [Member] | Owner Occupied Construction [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due Loans | 0 | 7,258
Financing Receivables, 30 to 59 Days Past Due [Member] | Consumer Portfolio Segment [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due Loans | 1,234 | 1,057
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due Loans | 0 | 0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Secured Loans [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due Loans | 0 | 0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Unsecured Loans [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due Loans | 0 | 0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | One-to-Four Family Residential [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due Loans | 0 | 0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Commercial Land [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due Loans | 0 | 0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Income Property Multifamily [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due Loans | 0 | 0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Owner Occupied [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due Loans | 0 | 0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Land And Acquisition [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due Loans | 0 | 0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Residential Construction [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due Loans | 0 | 0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Income Property Multifamily Construction [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due Loans | 0 | 0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Owner Occupied Construction [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due Loans | 0 | 0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Consumer Portfolio Segment [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due Loans | $ 0 | $ 0

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