Allowance for Loan and Lease Losses, Reversals

No definition available.

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- Definition

Financing Receivable, Individually Evaluated for Impairment, Threshold Amount

+ References

No definition available.

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- Definition

Financing Receivables, Impaired, Trouble Debt Restructuring, Allowance For Loan and Lease Losses, Period Increase (Decrease)

+ References

No definition available.

+ Details

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- Definition

Troubled debt restructuring, additional lending amount

+ References

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount of increase (decrease) of allowance reserve for credit loss.

+ References

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- Definition

Number of financing receivables that have been modified by troubled debt restructurings.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
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- Definition

Number of financing receivables that have been modified by troubled debt restructurings within the previous 12 months and for which there was a payment default.

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-SubTopic 10
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- Definition

Reflects the amount of the write-down related to a troubled debt restructuring.

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- Definition

Amount of deferred interest and fee income, unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of acquired loans. Excludes amounts for loans and leases covered under loss sharing agreements.

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Balance Type:	credit
Period Type:	instant

- Definition

Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

+ References

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- Definition

Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.

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- Definition

Recorded investment of consumer mortgage loan receivables secured by residential real estate properties for which formal foreclosure proceedings are in process.

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Loans (Additional Information) (Details)	3 Months Ended		6 Months Ended
Loans (Additional Information) (Details)	Jun. 30, 2018 USD ($) loan	Jun. 30, 2017 USD ($) loan	Jun. 30, 2018 USD ($) loan	Jun. 30, 2017 USD ($) loan	May 18, 2018 USD ($)	Dec. 31, 2017 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, Net	$ 2,302,873,000		$ 2,302,873,000			$ 2,125,944,000
Loans, Gross	2,321,845,000		2,321,845,000			2,145,019,000
Loans, fair value discounts	$ 3,335,000		$ 3,335,000			3,381,000
Number of loans modified as troubled debt restructurings \| loan	0	1	0	2
Additional lending amount to customers whose loan terms has been modified in troubled debt restructuring	$ 0		$ 0			0
Increase in allowance for loan losses for troubled debt restructuring loans	0	$ 8,000	0	$ 10,000
Charge-offs due to troubled debt restructurings	$ 0	$ 0	$ 0	$ 0
Number of loans modified as troubled debt restructuring subsequently defaulted \| loan	0	0	0	0
Threshold amount to individually classify loans by credit risk	$ 250,000		$ 250,000
Carrying amount of consumer mortgage loans secured by residential real estate properties	0		0			$ 14,000
Receivables Acquired with Deteriorated Credit Quality
Accounts, Notes, Loans and Financing Receivable [Line Items]
Increase (decrease) in allowance for loan losses	0	$ 0	30,000	$ 11,000
Reversal of allowance for loan losses	3,000	$ 56,000	3,000	$ 56,000
First Financial Bancorp
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, Net	115,713,000		115,713,000		$ 117,619,000
Loans, Gross	118,517,000		118,517,000		120,499,000
Loans, fair value discounts	$ 2,804,000		$ 2,804,000		2,880,000
First Financial Bancorp \| Receivables Acquired with Deteriorated Credit Quality
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, Gross					$ 0