Derivative Instruments - Derivatives Gross Amounts Recognized and Offset (Details) - USD ($) $ in Thousands		Dec. 31, 2018	Dec. 31, 2017
Derivative Assets
Gross amounts recognized		$ 15,250	$ 2,020
Gross amounts offset	[1]	(6,982)	(457)
Net amount presented		8,268	1,563
Derivative Liabilities
Gross amounts recognized		4,356	8,666
Gross amounts offset	[1]	(991)	(7,098)
Net amount presented		3,365	1,568
Interest rate contracts
Derivative Assets
Gross amounts recognized		7,909	1,797
Gross amounts offset	[1]	(395)	(457)
Net amount presented		7,514	1,340
Derivative Liabilities
Gross amounts recognized		3,732	1,688
Gross amounts offset	[1]	(395)	(457)
Net amount presented		3,337	1,231
Forward foreign exchange contracts
Derivative Assets
Gross amounts recognized		6,689
Gross amounts offset	[1]	(6,587)
Net amount presented		102
Derivative Liabilities
Gross amounts recognized		13	6,363
Gross amounts offset	[1]	(13)	(6,026)
Net amount presented		0	337
Interest rate lock commitments
Derivative Assets
Gross amounts recognized		652	223
Gross amounts offset	[1]	0	0
Net amount presented		652	223
Derivative Liabilities
Gross amounts recognized		28
Gross amounts offset	[1]	0
Net amount presented		28
Other contracts
Derivative Liabilities
Gross amounts recognized		583	615
Gross amounts offset	[1]	(583)	(615)
Net amount presented		$ 0	$ 0

[1] Includes the amounts with counterparties subject to enforceable master netting arrangements that have been offset in the Consolidated Statements of Financial Condition.