Derivative Instruments - Derivative Instruments (Details) - USD ($) $ in Thousands		Dec. 31, 2018	Dec. 31, 2017
Derivatives
Derivative Assets		$ 15,250	$ 2,020
Derivative Liabilities		4,356	8,666
Derivative asset netting	[1]	(6,982)	(457)
Derivative liability netting	[1]	(991)	(7,098)
Total derivative assets, net		8,268	1,563
Total derivative liabilities, net		3,365	1,568
Other assets
Derivatives
Derivative Assets		15,250	2,020
Derivative asset netting	[2]	(6,982)	(457)
Total derivative assets, net		8,268	1,563
Accrued expenses and other liabilities
Derivatives
Derivative Liabilities		4,356	8,666
Derivative liability netting	[2]	(991)	(7,098)
Total derivative liabilities, net		3,365	1,568
Derivatives designated as hedging instruments | Other assets
Derivatives
Derivative Assets		3,373	405
Derivatives designated as hedging instruments | Accrued expenses and other liabilities
Derivatives
Derivative Liabilities		0	1,744
Derivatives not designated as hedges | Other assets
Derivatives
Derivative Assets		11,877	1,615
Derivatives not designated as hedges | Accrued expenses and other liabilities
Derivatives
Derivative Liabilities		4,356	6,922
Interest rate contracts
Derivatives
Derivative Assets		7,909	1,797
Derivative Liabilities		3,732	1,688
Derivative asset netting	[1]	(395)	(457)
Derivative liability netting	[1]	(395)	(457)
Total derivative assets, net		7,514	1,340
Total derivative liabilities, net		3,337	1,231
Interest rate contracts | Derivatives designated as hedging instruments
Derivatives
Notional Amount		150,000	150,000
Interest rate contracts | Derivatives designated as hedging instruments | Other assets
Derivatives
Derivative Assets		393	405
Interest rate contracts | Derivatives designated as hedging instruments | Accrued expenses and other liabilities
Derivatives
Derivative Liabilities		0	0
Interest rate contracts | Derivatives not designated as hedges
Derivatives
Notional Amount		1,095,449	592,383
Interest rate contracts | Derivatives not designated as hedges | Other assets
Derivatives
Derivative Assets		7,516	1,392
Interest rate contracts | Derivatives not designated as hedges | Accrued expenses and other liabilities
Derivatives
Derivative Liabilities		3,732	1,688
Forward foreign exchange contracts
Derivatives
Derivative Assets		6,689
Derivative Liabilities		13	6,363
Derivative asset netting	[1]	(6,587)
Derivative liability netting	[1]	(13)	(6,026)
Total derivative assets, net		102
Total derivative liabilities, net		0	337
Forward foreign exchange contracts | Derivatives designated as hedging instruments
Derivatives
Notional Amount		157,271	77,879
Forward foreign exchange contracts | Derivatives designated as hedging instruments | Other assets
Derivatives
Derivative Assets		2,980	0
Forward foreign exchange contracts | Derivatives designated as hedging instruments | Accrued expenses and other liabilities
Derivatives
Derivative Liabilities		0	1,744
Forward foreign exchange contracts | Derivatives not designated as hedges
Derivatives
Notional Amount		254,274	330,928
Forward foreign exchange contracts | Derivatives not designated as hedges | Other assets
Derivatives
Derivative Assets		3,709	0
Forward foreign exchange contracts | Derivatives not designated as hedges | Accrued expenses and other liabilities
Derivatives
Derivative Liabilities		13	4,619
Interest rate lock commitments
Derivatives
Derivative Assets		652	223
Derivative Liabilities		28
Derivative asset netting	[1]	0	0
Derivative liability netting	[1]	0
Total derivative assets, net		652	223
Total derivative liabilities, net		28
Interest rate lock commitments | Derivatives not designated as hedges
Derivatives
Notional Amount		28,007	18,015
Interest rate lock commitments | Derivatives not designated as hedges | Other assets
Derivatives
Derivative Assets		652	223
Interest rate lock commitments | Derivatives not designated as hedges | Accrued expenses and other liabilities
Derivatives
Derivative Liabilities		28	0
Other contracts
Derivatives
Derivative Liabilities		583	615
Derivative liability netting	[1]	(583)	(615)
Total derivative liabilities, net		0	0
Other contracts | Derivatives not designated as hedges
Derivatives
Notional Amount		13,020	13,804
Other contracts | Derivatives not designated as hedges | Other assets
Derivatives
Derivative Assets		0	0
Other contracts | Derivatives not designated as hedges | Accrued expenses and other liabilities
Derivatives
Derivative Liabilities		$ 583	$ 615

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

[2] Includes balance sheet netting of derivative asset and derivative liability balances, related cash collateral and portfolio level counterparty valuation adjustments.