Acquisition of Owens Realty Mortgage, Inc - Bargain purchase gain (Details) $ / shares in Units, $ in Thousands		3 Months Ended	9 Months Ended
	Mar. 29, 2019 USD ($) $ / shares shares	Sep. 30, 2019 USD ($)	Sep. 30, 2019 USD ($)
Aggregate consideration transferred, net of assets acquired and bargain purchase gain
Closing share price | $ / shares	$ 14.67
Bargain purchase gain			$ 30,728
Owens Realty Mortgage, Inc.
Aggregate consideration transferred, net of assets acquired and bargain purchase gain
FV of Net Assets Acquired	$ 210,047
Common share fixed exchange ratio	1.441
Shares issued | shares	12,223,830
Closing share price | $ / shares	$ 14.67
Total consideration transferred based on value of shares issued	$ 179,324
Bargain purchase gain	$ 30,728
Acquisition related costs		$ 100	$ 6,100
Owens Realty Mortgage, Inc. | Owens Realty Mortgage, Inc.
Aggregate consideration transferred, net of assets acquired and bargain purchase gain
ORM shares outstanding at March 29, 2019 | shares	8,482,880