Derivative Financial Instruments (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended		12 Months Ended
	Jun. 30, 2019	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2020	Dec. 31, 2018
Derivative, Gain (Loss) on Derivative, Net [Abstract]
Amount of Gain or (Loss) Recognized in OCI on Derivative		$ (2,213)	$ 0
Securities Sold under Agreements to Repurchase [Abstract]
Gross Amounts Recognized	$ 160,961	160,961			$ 221,450
Gross Amounts Offset in the Statement of Financial Position	0	0			0
Net Amounts of Liabilities presented in the Statement of Financial Position	160,961	160,961			221,450
Financial Instruments	0	0			0
Fair Value Collateral Posted	160,961	160,961			221,450
Net Amount	0	0			0
Fair value of derivatives in a net liability position	14,300	14,300
Posted collateral	14,200	14,200
Interest rate swap
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Asset derivatives (other assets), fair value	10,511	10,511			2,217
Liability derivatives (other liabilities), fair value	14,325	14,325			2,217
Derivative Asset [Abstract]
Gross Amounts Offset in the Statement of Financial Position	0	0			0
Derivative financial instruments	10,511	10,511			2,217
Financial Instruments	97	97			0
Fair Value Collateral Posted	0	0			0
Net Amount	10,413	10,413			2,217
Derivative Liability [Abstract]
Gross Amounts Offset in the Statement of Financial Position	0	0			0
Net Amounts of Liabilities presented in the Statement of Financial Position	14,325	14,325			2,217
Financial Instruments	97	97			0
Fair Value Collateral Posted	13,982	13,982			0
Net Amount	246	246			2,217
Derivatives Designated as Hedging Instruments
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Asset derivatives (other assets), fair value	0	0			0
Liability derivatives (other liabilities), fair value	2,939	2,939			0
Derivatives Designated as Hedging Instruments | Other Assets | Interest rate swap
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Derivative Asset, Notional Amount	61,962	61,962			0
Asset derivatives (other assets), fair value	0	0			0
Derivatives Designated as Hedging Instruments | Other Liabilities | Interest rate swap
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Liability derivatives (other liabilities), fair value	2,939	2,939			0
Derivatives not Designated as Hedging Instruments
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Asset derivatives (other assets), fair value	11,124	11,124			3,023
Liability derivatives (other liabilities), fair value	11,999	11,999			3,023
Derivatives not Designated as Hedging Instruments | Other Assets | Interest rate swap
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Derivative Asset, Notional Amount	609,454	609,454			494,567
Asset derivatives (other assets), fair value	10,511	10,511			2,217
Derivatives not Designated as Hedging Instruments | Other Assets | Foreign exchange forward contracts
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Derivative Asset, Notional Amount	613	613			806
Asset derivatives (other assets), fair value	613	613			806
Derivatives not Designated as Hedging Instruments | Other Liabilities | Interest rate swap
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Liability derivatives (other liabilities), fair value	11,386	11,386			2,217
Derivatives not Designated as Hedging Instruments | Other Liabilities | Foreign exchange forward contracts
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Liability derivatives (other liabilities), fair value	$ 613	$ 613			$ 806
Cash Flow Hedging
Derivative [Line Items]
Derivative, fixed rate	2.62%	2.62%
Amount of Gain or (Loss) Reclassified from Accumulated OCI into Income	$ (6)	$ (6)
Derivative, Gain (Loss) on Derivative, Net [Abstract]
Amount of Gain or (Loss) Recognized in OCI on Derivative	(1,675)	(2,939)
Cash Flow Hedging | Interest rate swap
Derivative [Line Items]
Amount of Gain or (Loss) Reclassified from Accumulated OCI into Income	(6)	(6)
Derivative, Gain (Loss) on Derivative, Net [Abstract]
Amount of Gain or (Loss) Recognized in OCI on Derivative	$ (1,675)	$ (2,939)
Maximum | Cash Flow Hedging
Derivative [Line Items]
Cash flow hedge term		6 years
Scenario, Forecast | Cash Flow Hedging
Derivative [Line Items]
Amount of Gain or (Loss) Reclassified from Accumulated OCI into Income				$ 400