Fair Value Disclosures - Change in Contingent Consideration Liability (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Change in Contingent Consideration Liability [Roll Forward]
Beginning Balance	$ 6,541	$ 501
Contingent Consideration from New Acquisition	1,525	5,470
Payment of Contingent Consideration	880	310
Adjustment of Contingent Consideration	370	526
Ending Balance	7,556	6,187
Sterner Insurance Associates Inc [Member]
Change in Contingent Consideration Liability [Roll Forward]
Beginning Balance	680
Contingent Consideration from New Acquisition	1,525
Payment of Contingent Consideration	0
Adjustment of Contingent Consideration	402
Ending Balance	2,607
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	(112)	384
Ending Balance	4,771	5,854
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	80	142
Ending Balance	$ 178	$ 333