Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended											12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013		Mar. 31, 2013		Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012		Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Statement of Comprehensive Income [Abstract]
Net income	$ (9,126)	$ 7,569	$ 24,571	[1]	$ 29,915	[2]	$ 25,643	$ 3,364	$ (37,306)	$ 18,089	[2]	$ 52,929	$ 9,790	$ 20,818
Other comprehensive (loss) income, before tax:
Gross unrealized investment (loss) gain												(1,015)	1,529	1,167
Effect of income tax (benefit) expense												(386)	581	380
Other comprehensive (loss) income, net of tax												(629)	948	787
Comprehensive income												$ 52,300	$ 10,738	$ 21,605

[1] We abandoned our equity interests in the Missouri health plan during the second quarter of 2013, resulting in the recognition of a tax benefit of $9.5 million, which is included in (loss) income from discontinued operations.

[2] In connection with the reclassification of Missouri health plan results to discontinued operations, amounts differ from amounts previously reported in our Quarterly Reports on Form 10-Q as follows: premium revenue for the quarters ended March 31, 2013 and 2012 decreased $0.2 million and $56.6 million, respectively; operating income, Health Plans segment, for the quarters ended March 31, 2013 and 2012 decreased $0.8 million and $2.9 million, respectively.