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Loans Receivable (Interest Income Recognized in loans individually evaluated for impairment) (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2018 | Mar. 31, 2017
Loan [Member] |  |
Impaired Financing Receivable Interest Income Accrual Method [Abstract] |  |
Total Interest Income | $ 1,159 | $ 1,423
Impaired Financing Receivable Average Recorded Investment [Abstract] |  |
Total Average Recorded Investment | 154,596 | 147,164
Originated Loans [Member] |  |
Impaired Financing Receivable Interest Income Accrual Method [Abstract] |  |
Total Interest Income | 1,159 | 1,423
Impaired Financing Receivable Average Recorded Investment [Abstract] |  |
Total Average Recorded Investment | 153,849 | 146,247
Acquired loans accounted for under ASC 310-20 [Member] |  |
Impaired Financing Receivable Interest Income Accrual Method [Abstract] |  |
Total Interest Income | 0 | 0
Impaired Financing Receivable Average Recorded Investment [Abstract] |  |
Total Average Recorded Investment | 0 | 0
Commercial Loan [Member] | Originated Loans [Member] |  |
Impaired Financing Receivable Interest Income Accrual Method [Abstract] |  |
Impaired Financing Receivable With Related Allowance Interest Income Accrual Method | 263 | 125
Impaired Financing Receivable With No Related Allowance Interest Income Accrual Method | 176 | 532
Impaired Financing Receivable Average Recorded Investment [Abstract] |  |
Impaired Financing Receivable With Related Allowance Average Recorded Investment | 51,331 | 12,809
Impaired Financing Receivable With No Related Allowance Average Recorded Investment | 17,764 | 43,895
Commercial Loan [Member] | Acquired loans accounted for under ASC 310-20 [Member] |  |
Impaired Financing Receivable Interest Income Accrual Method [Abstract] |  |
Impaired Financing Receivable With Related Allowance Interest Income Accrual Method | 0 | 0
Impaired Financing Receivable With No Related Allowance Interest Income Accrual Method | 0 | 0
Impaired Financing Receivable Average Recorded Investment [Abstract] |  |
Impaired Financing Receivable With Related Allowance Average Recorded Investment | 747 | 917
Impaired Financing Receivable With No Related Allowance Average Recorded Investment | 0 | 0
Troubled Debt Restructuring [Member] | Originated Loans [Member] |  |
Impaired Financing Receivable Interest Income Accrual Method [Abstract] |  |
Impaired Financing Receivable With Related Allowance Interest Income Accrual Method | 720 | 766
Impaired Financing Receivable Average Recorded Investment [Abstract] |  |
Impaired Financing Receivable With Related Allowance Average Recorded Investment | $ 84,754 | $ 89,543

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- Definition Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5212-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5258-111524 + Details
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- Definition Amount of interest income recognized that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5212-111524 + Details
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