Fair Value Disclosures - Change in Contingent Consideration Liability (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Change in Contingent Consideration Liability [Roll Forward]
Beginning Balance	$ 6,541	$ 501
Contingent Consideration from New Acquisition	1,525	6,105
Payment of Contingent Consideration	2,631	310
Adjustment of Contingent Consideration	521	373
Ending Balance	5,956	6,669
Sterner Insurance Associates Inc [Member]
Change in Contingent Consideration Liability [Roll Forward]
Beginning Balance	680	0
Contingent Consideration from New Acquisition	1,525	635
Payment of Contingent Consideration	1,751	0
Adjustment of Contingent Consideration	535	22
Ending Balance	989	657
Girard Partners [Member]
Change in Contingent Consideration Liability [Roll Forward]
Beginning Balance	5,503	0
Contingent Consideration from New Acquisition	0	5,470
Payment of Contingent Consideration	620	0
Adjustment of Contingent Consideration	(102)	197
Ending Balance	4,781	5,667
John T. Fretz Insurance Agency [Member]
Change in Contingent Consideration Liability [Roll Forward]
Beginning Balance	358	501
Contingent Consideration from New Acquisition	0	0
Payment of Contingent Consideration	260	310
Adjustment of Contingent Consideration	88	154
Ending Balance	$ 186	$ 345