Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
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Fair value, after offset of derivative asset, of financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, elected not to be and before offset against a right to receive collateral under a master netting arrangement. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

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Fair value of the assets less the liabilities of a derivative or group of derivatives.

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Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

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Bank segment - Derivatives (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Derivative instrument
Net gains (losses) recognized in the Statement of Income	$ 1	$ 66	$ (30)	$ 174
Not designated as a hedging instrument
Derivative instrument
Asset derivatives	230		230		$ 453
Liability derivatives	16		16		209
Interest rate lock commitments
Derivative instrument
Notional amount	22,737		22,737		25,883
Fair value	126		126		421
Interest rate lock commitments \| Not designated as a hedging instrument
Derivative instrument
Asset derivatives	142		142		445
Liability derivatives	16		16		24
Interest rate lock commitments \| Not designated as a hedging instrument \| Mortgage banking income
Derivative instrument
Net gains (losses) recognized in the Statement of Income	(191)	140	(295)	411
Forward commitments
Derivative instrument
Notional amount	22,925		22,925		30,813
Fair value	88		88		(177)
Forward commitments \| Not designated as a hedging instrument
Derivative instrument
Asset derivatives	88		88		8
Liability derivatives	0		0		$ 185
Forward commitments \| Not designated as a hedging instrument \| Mortgage banking income
Derivative instrument
Net gains (losses) recognized in the Statement of Income	$ 192	$ (74)	$ 265	$ (237)