Fair Value Disclosures - Change in Contingent Consideration Liability (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Change in Contingent Consideration Liability [Roll Forward]
Beginning balance	$ 160	$ 259
Contingent consideration from new acquisition	0	0
Payment of contingent consideration	31	33
Adjustment of contingent consideration	6	9
Ending balance	135	235
Girard Partners [Member]
Change in Contingent Consideration Liability [Roll Forward]
Beginning balance	160	259
Contingent consideration from new acquisition	0	0
Payment of contingent consideration	31	33
Adjustment of contingent consideration	6	9
Ending balance	$ 135	$ 235