The effect of a change in method or methods for calculating the allowance for credit losses on the current period provision.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7
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+ References

No definition available.

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Amount of expense related to estimated loss from loan and lease transactions.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 225
-Section S99
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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Loans - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Loans and Leases Receivable Disclosure [Line Items]
Nonaccrual loans - held-for-investment	$ 26,034	$ 2,987	$ 26,034	$ 2,987	$ 2,250
Provision for loan losses	7,198	$ (46)	7,704	$ 275
Borrower
Loans and Leases Receivable Disclosure [Line Items]
Nonaccrual loans - held-for-investment	$ 22,874		22,874
Specific reserve			6,100
Provision for loan losses			$ 6,100