CONSOLIDATED STATEMENTS OF INCOME (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
REVENUES
Premiums earned, affiliated	$ 143,554	$ 130,214	$ 280,973	$ 262,146
Other income, affiliated	42	232	699	361
LOSSES AND EXPENSES
Losses and settlement expenses, affiliated	102,320	103,663	177,592	192,354
Amortization of deferred policy acquisition costs, affiliated	26,825	24,175	52,037	48,604
Other underwriting expenses, affiliated	16,730	13,892	34,251	29,322
Other expense, affiliated	$ 449	$ 385	$ 890	$ 709