Other Comprehensive Income (Loss) - Summary of the Tax Effects (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total other comprehensive income (loss), before tax	$ 3,803	$ (784)	$ 9,645	$ (4,522)
Total other comprehensive (loss) income, tax effect	0	165	0	950
Total other comprehensive income (loss), net of tax	3,803	(619)	9,645	(3,572)
Securities available-for-sale:
Accumulated Other Comprehensive Income (Loss) [Line Items]
Change in unrealized gains/losses during period, before tax	4,428	(873)	10,905	(4,922)
Change in unrealized gains/losses during period, tax effect	0	184	0	1,034
Change in unrealized gains/losses during period, net of tax	4,428	(689)	10,905	(3,888)
Reclassification adjustment for gains included in net income, before tax	(202)	0	(575)	0
Reclassification adjustment for gains included in net income, tax effect	0	0	0	0
Reclassification adjustment for gains included in net income, net of tax	(202)	0	(575)	0
Derivative instruments designated as cash flow hedges:
Accumulated Other Comprehensive Income (Loss) [Line Items]
Change in unrealized gains/losses during period, before tax	(423)	89	(685)	400
Change in unrealized gains/losses during period, tax effect	0	(19)	0	(84)
Change in unrealized gains/losses during period, net of tax	(423)	$ 70	(685)	$ 316
Total other comprehensive income (loss)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total other comprehensive income (loss), net of tax	$ 3,803		$ 9,645