CONSOLIDATED STATEMENTS OF INCOME (Parenthetical) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
CONSOLIDATED STATEMENTS OF INCOME
Benefits and settlement expenses, reinsurance ceded	$ 1,207,781	$ 1,228,897	$ 1,231,405
Other operating expenses, reinsurance ceded	$ 199,079	$ 200,442	$ 203,868