Business Combinations - Schedule of pro-forma income and earnings (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2016
Selected Financial Data
Interest income	$ 37,277	$ 77,767
Interest expense	(16,528)	(33,319)
Provision for loan losses	(2,017)	(4,201)
Non-interest income (expense)	(9,895)	(20,305)
Realized gain (loss)	1,107	606
Unrealized gain (loss)	(1,744)	(12,203)
Net income from continuing operations before income taxes	$ 8,200	$ 8,345