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Bank segment - Derivatives (Details) - Not designated as a hedging instrument - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Derivative instrument
Asset derivatives	$ 5,271		$ 5,271		$ 300
Liability derivatives	243		243		45
Net gains (losses) recognized in the Statement of Income	2,974	$ 36	4,773	$ 346
Interest rate lock commitments
Derivative instrument
Notional amount	129,806		129,806		23,171
Fair value	5,271		5,271		297
Asset derivatives	5,271		5,271		297
Liability derivatives	0		0		0
Interest rate lock commitments | Mortgage banking income
Derivative instrument
Net gains (losses) recognized in the Statement of Income	2,930	(3)	4,974	379
Forward commitments
Derivative instrument
Notional amount	104,500		104,500		29,383
Fair value	(243)		(243)		(42)
Asset derivatives	0		0		3
Liability derivatives	243		243		$ 45
Forward commitments | Mortgage banking income
Derivative instrument
Net gains (losses) recognized in the Statement of Income	$ 44	$ 39	$ (201)	$ (33)

X

- Definition

Fair value, after offset of derivative liability, of financial asset or other 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, before offset against an obligation to return collateral under a master netting arrangement. Includes assets elected not to be offset. Excludes assets 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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