Schedule IV - Reinsurance (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Consolidated earned premiums [Abstract]
Gross amount	$ 361,009,971	$ 328,227,401	$ 283,482,713
Ceded to other companies	413,421,963	368,870,477	335,355,738
Assumed from other companies	567,918,258	499,489,075	468,275,338
Net amount	$ 515,506,266	$ 458,845,999	$ 416,402,313
Percentage of amount assumed to net	110.20%	108.90%	112.50%