Relationships with Mutual Insurance Companies (Details)	3 Months Ended
	Mar. 31, 2013
Capitol [Member]
Relationships with Mutual Insurance Companies [Line Items]
Number of Board of Director Members	5
Number of Company Employee Board Members	5
ORCC [Member]
Relationships with Mutual Insurance Companies [Line Items]
Number of Board of Director Members	9
Number of Company Employee Board Members	9
Capitol [Member] | Trinity [Member]
Relationships with Mutual Insurance Companies [Line Items]
Assumed Premiums, Other Insurance Percentage	100.00%
ORCC [Member] | Trinity [Member]
Relationships with Mutual Insurance Companies [Line Items]
Assumed Premiums, Other Insurance Percentage	100.00%