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.

No definition available.

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- Definition

Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4A
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5618551-113959

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- Definition

Total amount of gain (loss) derived from fair value hedges recognized in earnings in the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959

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Derivatives - (Derivatives on the Income Statement) (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Not Designated as Hedging Instrument, Economic Hedge [Member]
Derivative [Line Items]
Amount of gain or (loss) recognized in income on derivatives	$ 1,605		$ (102)
Fair Value Hedging [Member] \| Designated as Hedging Instrument [Member]
Derivative [Line Items]
Amount of gain or (loss) recognized in income on derivatives	12,052	$ 1,064
Interest rate products [Member] \| Designated as Hedging Instrument [Member]
Derivative [Line Items]
Amount of gain or (loss) recognized in income on hedged items	(11,917)		(1,241)
Interest rate products [Member] \| Designated as Hedging Instrument [Member] \| Other Non-Interest income [Member]
Derivative [Line Items]
Amount of gain or (loss) recognized in income on derivatives		1,064
Interest rate products [Member] \| Not Designated as Hedging Instrument, Economic Hedge [Member] \| Other Non-Interest expense [Member]
Derivative [Line Items]
Amount of gain or (loss) recognized in income on derivatives	122		(32)
Interest rate products [Member] \| Fair Value Hedging [Member] \| Other Non-Interest income [Member]
Derivative [Line Items]
Amount of gain or (loss) recognized in income on hedged items		$ (1,241)
Interest rate products [Member] \| Fair Value Hedging [Member] \| Designated as Hedging Instrument [Member] \| Interest income [Member]
Derivative [Line Items]
Amount of gain or (loss) recognized in income on derivatives	12,052
Amount of gain or (loss) recognized in income on hedged items	(11,917)
Forward Contracts [Member] \| Not Designated as Hedging Instrument, Economic Hedge [Member] \| Mortgage banking income member
Derivative [Line Items]
Amount of gain or (loss) recognized in income on derivatives	1,108		(193)
Interest Rate Lock Commitments [Member] \| Not Designated as Hedging Instrument, Economic Hedge [Member] \| Mortgage banking income member
Derivative [Line Items]
Amount of gain or (loss) recognized in income on derivatives	$ 375		$ 123