Fair Value Disclosures - Change in Contingent Consideration Liability (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Change in Contingent Consideration Liability [Roll Forward]
Beginning Balance	$ 6,541	$ 501
Contingent Consideration from New Acquisition	1,424	5,469
Payment of Contingent Consideration	620	0
Adjustment of Contingent Consideration	71	314
Ending Balance	7,416	6,284
Sterner Insurance Associates Inc [Member]
Change in Contingent Consideration Liability [Roll Forward]
Beginning Balance	680
Contingent Consideration from New Acquisition	1,424
Payment of Contingent Consideration	0
Adjustment of Contingent Consideration	24
Ending Balance	2,128
Girard Partners [Member]
Change in Contingent Consideration Liability [Roll Forward]
Beginning Balance	5,503	0
Contingent Consideration from New Acquisition	0	5,469
Payment of Contingent Consideration	620	0
Adjustment of Contingent Consideration	34	189
Ending Balance	4,917	5,658
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	0	0
Adjustment of Contingent Consideration	13	125
Ending Balance	$ 371	$ 626