Percentage rate based on collateral discounts and estimated costs to sell.

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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.

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- Definition

Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

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Carrying amount of other real estate not separately disclosed, including, but not limited to, real estate investments, real estate loans that qualify as investments in real estate, and premises that are no longer used in operations may also be included in real estate owned. This does not include real estate assets taken in settlement of troubled loans through surrender or foreclosure.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.10(4))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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Fair Value - Assets and liabilities measured at fair value on a nonrecurring basis - (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Jun. 23, 2016	Dec. 31, 2015	Dec. 31, 2014
Fair Value
Other Real Estate	$ 11,203	$ 18,316	$ 3,000	$ 30,554	$ 42,726
OREO \| Fair Value.
Fair Value
Other Real Estate		18,316
Non-acquired Credit Impaired loans \| Fair Value.
Fair Value
Other Real Estate		6,611
Significant Unobservable Inputs (Level 3) \| OREO
Fair Value
Other Real Estate		18,316
Significant Unobservable Inputs (Level 3) \| Non-acquired Credit Impaired loans
Fair Value
Other Real Estate		$ 6,611
Nonrecurring basis \| OREO \| Fair Value.
Fair Value
Other Real Estate	11,203
Nonrecurring basis \| Non-acquired Credit Impaired loans \| Fair Value.
Fair Value
Other Real Estate	10,495
Nonrecurring basis \| Significant Unobservable Inputs (Level 3) \| OREO
Fair Value
Other Real Estate	11,203
Nonrecurring basis \| Significant Unobservable Inputs (Level 3) \| Non-acquired Credit Impaired loans
Fair Value
Other Real Estate	$ 10,495
Nonrecurring basis \| Significant Unobservable Inputs (Level 3) \| Discounted appraisals \| Impaired loans
Quantitative Information about Level 3 Fair Value Measurements
Collateral discounts (as a percent)	3.00%	6.00%
Nonrecurring basis \| Significant Unobservable Inputs (Level 3) \| Discounted appraisals \| OREO
Quantitative Information about Level 3 Fair Value Measurements
Collateral discounts and estimated costs to sell (as a percent)	21.00%	18.00%