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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
	Mar. 31, 2019	Mar. 31, 2018
Loan Receivable Type [Domain]
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	$ 24,971	$ 25,174
Provision for loan and lease losses, net	(651)	139
Allowance de-recognition from new policy	32	97
Balance at end of period	24,352	25,410
Loans secured by 1-4 family residential properties, covered [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	15,382	15,187
Provision for loan and lease losses, net	(202)	179
Allowance de-recognition from new policy	(70)	48
Balance at end of period	15,110	15,414
Commercial
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	9,585	9,983
Provision for loan and lease losses, net	(449)	(40)
Allowance de-recognition from new policy	106	49
Balance at end of period	9,242	9,992
Consumer Loan [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	4	4
Provision for loan and lease losses, net	0	0
Allowance de-recognition from new policy	(4)	0
Balance at end of period	$ 0	$ 4

X

- 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.

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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.

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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

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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

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