CONSOLIDATED STATEMENTS OF INCOME (Unaudited) (Parenthetical) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
REVENUES
Premiums earned, affiliated	$ 130,214	$ 124,619	$ 262,146	$ 243,736
LOSSES AND EXPENSES
Losses and settlement expenses, affiliated	103,663	85,491	192,354	157,970
Amortization of deferred policy acquisition costs, affiliated	24,175	22,900	48,604	44,850
Other underwriting expenses, affiliated	13,892	15,034	29,322	31,055
Other expense, affiliated	$ 334	$ 334	$ 730	$ 421