Acquisition of Owens Realty Mortgage, Inc - Pro-forma Information (Details) - USD ($) $ in Thousands		3 Months Ended	9 Months Ended
	Mar. 29, 2019	Sep. 30, 2019	Sep. 30, 2019
Pro-forma information
Interest income		$ 47,725	$ 132,710
Interest expense		(29,636)	(79,832)
Provision for loan losses		(558)	(363)
Noninterest income		45,419	131,927
Noninterest expense		(42,086)	(122,970)
Income before provision for income taxes		20,864	61,472
Provision for income (taxes) benefit		(1,046)	(4,439)
Net income		19,818	57,033
Nonrecurring transaction costs excluded from pro forma non-interest expense		$ 100	9,000
Bargain purchase gain			$ 30,728
Owens Realty Mortgage, Inc.
Pro-forma information
Bargain purchase gain	$ 30,728