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Loans and Leases - Schedule of Outstanding Principal and Carrying Amount of Loans Acquired (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Total Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Outstanding principal balance	$ 3,623	$ 3,652
Carrying amount	3,439	3,438
VIST Financial Corp. (VIST Financial) | Acquired Credit Impaired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Outstanding principal balance	11,267	12,822
Carrying amount	9,651	11,036
VIST Financial Corp. (VIST Financial) | Acquired Non-Credit Impaired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Outstanding principal balance	220,563	256,265
Carrying amount	218,806	254,162
VIST Financial Corp. (VIST Financial) | Total Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Outstanding principal balance	231,830	269,087
Carrying amount	$ 228,457	$ 265,198

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Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
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Amount of unpaid principal balance of impaired financing receivables with related allowance for credit losses and without related allowance for credit losses.

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