Segment Reporting - Reconciliation of Net Income to Economic Earnings (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Segment Reporting [Abstract]
Net income	$ 2,541	$ 1,117	$ 1,861	$ 392	$ 5,413	$ 5,368	$ 7,992	$ 7,978	$ 5,911	$ 26,751	$ 19,989
Restricted stock expense									10,305	15,283	16,430
Amortization of intangible assets									1,726	1,672	1,872
Add: Tax benefit from goodwill amortization									237	237	626
Economic Earnings (Loss)									$ 18,179	$ 43,943	$ 38,917