Derivative Instruments - Derivatives Gross Amounts Recognized and Offset (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Derivative Assets
Gross amounts recognized	$ 137,394	$ 15,250
Gross amounts offset	(2,152)	(6,982)
Net amount presented	135,242	8,268
Derivative Liabilities
Gross amounts recognized	103,564	4,356
Gross amounts offset	(93,785)	(991)
Net amount presented	9,779	3,365
Interest rate contracts
Derivative Assets
Gross amounts recognized	130,391	7,909
Gross amounts offset	(312)	(395)
Net amount presented	130,079	7,514
Derivative Liabilities
Gross amounts recognized	101,910	3,732
Gross amounts offset	(93,099)	(395)
Net amount presented	8,811	3,337
Interest rate lock commitments
Derivative Assets
Gross amounts recognized	4,554	652
Gross amounts offset	(8)	0
Net amount presented	4,546	652
Derivative Liabilities
Gross amounts recognized	113	28
Gross amounts offset	(8)	0
Net amount presented	105	28
Forward loan sales commitments
Derivative Assets
Gross amounts recognized	166
Gross amounts offset	(166)
Net amount presented	0
Derivative Liabilities
Gross amounts recognized	253
Gross amounts offset	(166)
Net amount presented	87
Power Equity CDs
Derivative Assets
Gross amounts recognized	617
Gross amounts offset	0
Net amount presented	617
Derivative Liabilities
Gross amounts recognized	617
Gross amounts offset	0
Net amount presented	617
Forward foreign exchange contracts
Derivative Assets
Gross amounts recognized	1,666	6,689
Gross amounts offset	(1,666)	(6,587)
Net amount presented	0	102
Derivative Liabilities
Gross amounts recognized	315	13
Gross amounts offset	(156)	(13)
Net amount presented	159	0
Swap agreement
Derivative Liabilities
Gross amounts recognized	356	583
Gross amounts offset	(356)	(583)
Net amount presented	$ 0	$ 0

Fair value of liability associated with 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.

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