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Loans Receivable (Interest Income Recognized in loans individually evaluated for impairment) (Details) - USD ($) | 3 Months Ended
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Mar. 31, 2016 | Mar. 31, 2015
Impaired Financing Receivable Interest Income Accrual Method [Abstract] |  |
Total Interest Income | $ 1,139,000 | $ 4,681,000
Impaired Financing Receivable Average Recorded Investment [Abstract] |  |
Total Average Recorded Investment | 321,180,000 | 337,233,000
Commercial Loan [Member] | Originated Loans [Member] |  |
Impaired Financing Receivable Interest Income Accrual Method [Abstract] |  |
Impaired Financing Receivable With Related Allowance Interest Income Accrual Method | 71,000 | 3,695,000
Impaired Financing Receivable With No Related Allowance Interest Income Accrual Method | 270,000 | 241,000
Impaired Financing Receivable Average Recorded Investment [Abstract] |  |
Impaired Financing Receivable With Related Allowance Average Recorded Investment | 196,795,000 | 79,873,000
Impaired Financing Receivable With No Related Allowance Average Recorded Investment | 33,626,000 | 161,568,000
Commercial Loan [Member] | Most recent acquired loans accounted for under ASC 310-20 [Member] |  |
Impaired Financing Receivable Interest Income Accrual Method [Abstract] |  |
Impaired Financing Receivable With No Related Allowance Interest Income Accrual Method | 0 | 12,000
Impaired Financing Receivable Average Recorded Investment [Abstract] |  |
Impaired Financing Receivable With No Related Allowance Average Recorded Investment | 467,000 | 2,401,000
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 | 798,000 | 733,000
Impaired Financing Receivable Average Recorded Investment [Abstract] |  |
Impaired Financing Receivable With Related Allowance Average Recorded Investment | $ 90,292,000 | $ 93,391,000

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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=35738203&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=35738203&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=35738203&loc=d3e5212-111524 + Details
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