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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 | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Loan Receivable Type [Domain] |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |
Balance at beginning of period | $ 25,174 | $ 21,281 | $ 90,178
Provision for loan and lease losses, net | 2,567 | 6,725 | 2,255
Charge-offs |  |  | 134
FDIC Indemnification Asset Additional Estimated Losses Recoveries |  |  | 3,391
Allowance de-recognition from new policy | (2,770) | (2,832) | (74,409)
Balance at end of period | 24,971 | 25,174 | 21,281
Loans secured by 1-4 family residential properties, covered [Member] |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |
Balance at beginning of period | 15,187 | 11,947 | 22,570
Provision for loan and lease losses, net | 1,806 | 5,045 | 1,080
Charge-offs |  |  | 0
FDIC Indemnification Asset Additional Estimated Losses Recoveries |  |  | 3,391
Allowance de-recognition from new policy | (1,611) | (1,805) | (15,094)
Balance at end of period | 15,382 | 15,187 | 11,947
Commercial |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |
Balance at beginning of period | 9,983 | 9,328 | 67,365
Provision for loan and lease losses, net | 761 | 1,680 | 1,183
Charge-offs |  |  | 134
FDIC Indemnification Asset Additional Estimated Losses Recoveries |  |  | 0
Allowance de-recognition from new policy | (1,159) | (1,025) | (59,086)
Balance at end of period | 9,585 | 9,983 | 9,328
Consumer Loan [Member] |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |
Balance at beginning of period | 4 | 6 | 243
Provision for loan and lease losses, net | 0 | 0 | (8)
Charge-offs |  |  | 0
FDIC Indemnification Asset Additional Estimated Losses Recoveries |  |  | 0
Allowance de-recognition from new policy | 0 | (2) | (229)
Balance at end of period | $ 4 | $ 4 | $ 6

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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 Amount of increases to the indemnification asset due to additional estimated losses assumed by the Federal Deposit Insurance Corporation (FDIC), relating to loss sharing agreements with the FDIC. + 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://fasb.org/us-gaap/role/ref/legacyRef -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 direct write-downs of financing receivables charged against the allowance. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(3) -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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.11) -URI http://asc.fasb.org/extlink&oid=114873765&loc=SL114874048-224260 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -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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