Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2012

Fair Value Measurements [Abstract]

Fair value measurements for investments in available-for-sale fixed maturity and equity securities

	Fair Value Measurements Using
	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
U.S. Treasury securities and obligations of U.S. government corporations and agencies	$	71,311,103	$	—	$	71,311,103	$	—
Obligations of states and political subdivisions		416,986,963		—		416,986,963		—
Corporate securities		77,355,777		—		77,355,777		—
Residential mortgage-backed securities		128,855,978		—		128,855,978		—
Equity securities		8,757,258		5,365,721		3,391,537		—
Totals	$	703,267,079	$	5,365,721	$	697,901,358	$	—

	Fair Value Measurements Using
	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
U.S. Treasury securities and obligations of U.S. government corporations and agencies	$	60,977,557	$	—	$	60,977,557	$	—
Obligations of states and political subdivisions		398,876,582		—		398,876,582		—
Corporate securities		64,113,649		—		64,113,649		—
Residential mortgage-backed securities		122,630,390		—		122,630,390		—
Equity securities		7,437,538		6,178,136		1,259,402		—
Totals	$	654,035,716	$	6,178,136	$	647,857,580	$	—