Loans (Analysis of Nonaccrual Loans) (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	$ 54,842
Unpaid Principal Balance Nonaccrual Loans	65,358	$ 79,886
Recorded Investment Nonaccrual Loans		66,189
Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	2,949
Unpaid Principal Balance Nonaccrual Loans	3,149	4,633
Recorded Investment Nonaccrual Loans		4,149
Commercial business: Secured loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	35,504
Unpaid Principal Balance Nonaccrual Loans	45,072	56,865
Recorded Investment Nonaccrual Loans		45,410
Commercial business: Unsecured loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	9
Unpaid Principal Balance Nonaccrual Loans	9	49
Recorded Investment Nonaccrual Loans		50
Real estate: One-to-four family residential [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	1,158
Unpaid Principal Balance Nonaccrual Loans	1,178	1,182
Recorded Investment Nonaccrual Loans		785
Real estate: Commercial and multifamily residential: Commercial land [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	2,261
Unpaid Principal Balance Nonaccrual Loans	2,270	2,623
Recorded Investment Nonaccrual Loans		2,628
Real estate: Commercial and multifamiIy residential: Income property [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	2,721
Unpaid Principal Balance Nonaccrual Loans	3,062	5,410
Recorded Investment Nonaccrual Loans		4,284
Real estate: Commercial and multifamiIy residential: Owner occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	9,922
Unpaid Principal Balance Nonaccrual Loans	10,300	7,270
Recorded Investment Nonaccrual Loans		7,029
Real estate construction: One-to-four family residential: Land and acquisition [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	318
Unpaid Principal Balance Nonaccrual Loans	318	26
Recorded Investment Nonaccrual Loans		25
Real estate construction: One-to-four family residential: Residential construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	0
Unpaid Principal Balance Nonaccrual Loans	$ 0	1,828
Recorded Investment Nonaccrual Loans		$ 1,829

Financing Receivable, Recorded Investment, Gross, Nonaccrual Status

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- Definition

Financing Receivable Unpaid Principal Balance Nonaccrual Status.

+ References

No definition available.

+ Details

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- Definition

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

+ References

No definition available.

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- Definition

Recorded investment in financing receivables that are on nonaccrual status as of the balance sheet date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5111-111524

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