Fair Value Disclosures - Change in Contingent Consideration Liability (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Change in Contingent Consideration Liability [Roll Forward]
Beginning Balance	$ 5,577	$ 6,541
Contingent Consideration from New Acquisition	0	1,525
Payment of Contingent Consideration	1,160	880
Adjustment of Contingent Consideration	796	370
Ending Balance	5,213	7,556
Sterner Insurance Associates Inc [Member]
Change in Contingent Consideration Liability [Roll Forward]
Beginning Balance	1,144	680
Contingent Consideration from New Acquisition	0	1,525
Payment of Contingent Consideration	0	0
Adjustment of Contingent Consideration	490	402
Ending Balance	1,634	2,607
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	238	(112)
Ending Balance	3,579	4,771
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	260	260
Adjustment of Contingent Consideration	68	80
Ending Balance	$ 0	$ 178