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Loans Receivable (Recorded Investment in Covered Loan Pools) (Details) (USD $) In Thousands, unless otherwise specified |  |  |  |  |  |  | 3 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended
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Sep. 30, 2014 | Jun. 30, 2014 | Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Dec. 31, 2012 | Sep. 30, 2014 Covered Loan [Member] | Dec. 31, 2013 Covered Loan [Member] | Sep. 30, 2014 Loans Secured by 1-4 properties Covered Loan [Member] | Dec. 31, 2013 Loans Secured by 1-4 properties Covered Loan [Member] | Sep. 30, 2014 Construction and development secured by multi-family properties [Member] Covered Loan [Member] | Dec. 31, 2013 Construction and development secured by multi-family properties [Member] Covered Loan [Member] | Sep. 30, 2014 Other Commercial and Industrial[Member] Covered Loan [Member] | Dec. 31, 2013 Other Commercial and Industrial[Member] Covered Loan [Member] | Sep. 30, 2014 Consumer Loan [Member] Covered Loan [Member] | Dec. 31, 2013 Consumer Loan [Member] Covered Loan [Member]
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unpaid Principal |  |  |  |  |  |  | $ 313,541 | $ 338,257 | $ 138,029 | $ 52,142 | $ 61,562 | $ 66,037 | $ 105,542 | $ 209,566 | $ 8,408 | $ 10,512
Recorded Investment |  |  |  |  |  |  | 205,340 | 173,286 | 106,823 | 38,179 | 20,249 | 17,304 | 73,424 | 111,946 | 4,844 | 5,857
Allowance for loan and lease losses, covered | $ 62,227 | $ 59,515 | $ 52,729 | $ 56,555 | $ 53,992 | $ 54,124 | $ 62,227 | $ 52,729 | $ 15,252 | $ 12,495 | $ 8,679 | $ 6,866 | $ 37,907 | $ 32,753 | $ 389 | $ 615
Coverage |  |  |  |  |  |  | 30.00% | 30.00% | 14.00% | 33.00% | 43.00% | 40.00% | 52.00% | 29.00% | 8.00% | 11.00%

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- Definition The percentage represents the coverage of the allowance for loan and lease losses to loans. + References No definition available. + Details
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- Details
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- Definition Amount of investment in impaired financing receivables for which there is 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 14A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=28368275&loc=SL6953550-111524 + Details
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- Definition Unpaid principal balance of impaired financing receivables for which there is 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 (a)(4) -URI http://asc.fasb.org/extlink&oid=28368275&loc=d3e5212-111524 + Details
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- Definition Amount of allowance for loan and lease losses covered by loss sharing agreements. + References No definition available. + Details
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