Fair Value Disclosures - Change in Contingent Consideration Liability (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Change in Contingent Consideration Liability [Roll Forward]
Beginning Balance	$ 5,577	$ 6,541
Contingent Consideration from New Acquisition	0	1,424
Payment of Contingent Consideration	900	620
Adjustment of Contingent Consideration	280	71
Ending Balance	4,957	7,416
Sterner Insurance Associates Inc [Member]
Change in Contingent Consideration Liability [Roll Forward]
Beginning Balance	1,144	680
Contingent Consideration from New Acquisition	0	1,424
Payment of Contingent Consideration	0	0
Adjustment of Contingent Consideration	154	24
Ending Balance	1,298	2,128
Girard Partners [Member]
Change in Contingent Consideration Liability [Roll Forward]
Beginning Balance	4,241	5,503
Contingent Consideration from New Acquisition	0	0
Payment of Contingent Consideration	900	620
Adjustment of Contingent Consideration	119	34
Ending Balance	3,460	4,917
John T. Fretz Insurance Agency [Member]
Change in Contingent Consideration Liability [Roll Forward]
Beginning Balance	192	358
Contingent Consideration from New Acquisition	0	0
Payment of Contingent Consideration	0	0
Adjustment of Contingent Consideration	7	13
Ending Balance	$ 199	$ 371