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Allowance for Loan and Lease Losses (Allowance for Acquired Eurobank Loan and Lease Losses) (Details) - Eurobank Acquired Loans - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
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Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Loan Receivable Type |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |
Balance at beginning of period | $ 24,314 | $ 21,786 | $ 25,174 | $ 21,281
Provision for loan and lease losses, net | 306 | 2,541 | 1,110 | 4,573
Allowance de-recognition from new policy | (339) | (1,182) | (2,003) | (2,709)
Balance at end of period | 24,281 | 23,145 | 24,281 | 23,145
Loans secured by 1-4 family residential properties, covered [Member] |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |
Balance at beginning of period | 15,170 | 13,651 | 15,187 | 11,947
Provision for loan and lease losses, net | 231 | 1,139 | 1,015 | 4,011
Allowance de-recognition from new policy | (246) | (571) | (1,047) | (1,739)
Balance at end of period | 15,155 | 14,219 | 15,155 | 14,219
Commercial |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |
Balance at beginning of period | 9,140 | 8,131 | 9,983 | 9,328
Provision for loan and lease losses, net | 75 | 1,402 | 95 | 562
Allowance de-recognition from new policy | (93) | (611) | (956) | (968)
Balance at end of period | 9,122 | 8,922 | 9,122 | 8,922
Consumer Loan [Member] |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |
Balance at beginning of period | 4 | 4 | 4 | 6
Provision for loan and lease losses, net | 0 | 0 | 0 | 0
Allowance de-recognition from new policy | 0 | 0 | 0 | (2)
Balance at end of period | $ 4 | $ 4 | $ 4 | $ 4

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- Definition The Company changed the purchase credit impaired policy for all loans accounted for under ASC 310-30. Under the new policy, the Company writes-off the loans recorded investment and derecognizes the associated allowance for loan and lease losses for loans that exit the pools. + References No definition available. + Details
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Definition A valuation allowance for financing receivables that are expected to be uncollectible. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 + Details
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- Definition Amount of expense related to estimated loss from loan and lease transactions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.11) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 + Details
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- Details
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