CONSOLIDATED STATEMENTS OF INCOME (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
REVENUES
Premiums earned, affiliated	$ 144,540	$ 137,395	$ 425,513	$ 399,541
Other income, affiliated	420	727	1,119	1,088
LOSSES AND EXPENSES
Losses and settlement expenses, affiliated	101,323	106,090	278,915	298,444
Amortization of deferred policy acquisition costs, affiliated	25,835	24,761	77,872	73,365
Other underwriting expenses, affiliated	16,046	13,907	50,297	43,229
Other expense, affiliated	$ 473	$ 373	$ 1,363	$ 1,082