Business Segment Information (Tables)

6 Months Ended

Jun. 30, 2011

Business Segment Information

Schedule of operating results by business segment

Three Months Ended June 30, 2010	Commercial			Public Sector			Radiology Benefits Management			Specialty Pharmaceutical Management			Medicaid Administration			Corporate and Elimination			Consolidated
Net revenue	$	160,982		$	368,011		$	105,263		$	67,993		$	39,409		$	—		$	741,658
Cost of care		(90,583	)		(311,609	)		(70,286	)		—			—			—			(472,478	)
Cost of goods sold		—			—			—			(54,771	)		—			—			(54,771	)
Direct service costs		(37,716	)		(15,458	)		(15,401	)		(5,922	)		(34,039	)					(108,536	)
Other operating expenses		—			—			—			—			—			(31,081	)		(31,081	)
Stock compensation expense(1)		194			172			368			114			22			2,836			3,706
Segment profit (loss)	$	32,877		$	41,116		$	19,944		$	7,414		$	5,392		$	(28,245	)	$	78,498

Three Months Ended June 30, 2011	Commercial			Public Sector			Radiology Benefits Management			Specialty Pharmaceutical Management			Medicaid Administration			Corporate and Elimination			Consolidated
Net revenue	$	139,686		$	362,284		$	90,608		$	69,366		$	56,637		$	(20,243	)	$	698,338
Cost of care		(79,122	)		(309,934	)		(53,828	)		—			(18,805	)		20,243			(441,446	)
Cost of goods sold		—			—			—			(53,404	)		—			—			(53,404	)
Direct service costs		(39,112	)		(16,486	)		(15,858	)		(6,083	)		(25,849	)		—			(103,388	)
Other operating expenses		—			—			—			—			—			(28,391	)		(28,391	)
Stock compensation expense(1)		218			214			401			133			41			3,198			4,205
Segment profit (loss)	$	21,670		$	36,078		$	21,323		$	10,012		$	12,024		$	(25,193	)	$	75,914

Six Months Ended June 30, 2010	Commercial			Public Sector			Radiology Benefits Management			Specialty Pharmaceutical Management			Medicaid Administration			Corporate and Elimination			Consolidated
Net revenue	$	322,684		$	717,479		$	214,720		$	136,131		$	78,697		$	—		$	1,469,711
Cost of care		(181,255	)		(620,671	)		(147,231	)		—			—			—			(949,157	)
Cost of goods sold		—			—			—			(111,067	)		—			—			(111,067	)
Direct service costs		(75,184	)		(33,005	)		(30,239	)		(11,473	)		(66,627	)					(216,528	)
Other operating expenses		—			—			—			—			—			(61,343	)		(61,343	)
Stock compensation expense(1)		432			373			761			257			40			6,371			8,234
Segment profit (loss)	$	66,677		$	64,176		$	38,011		$	13,848		$	12,110		$	(54,972	)	$	139,850

Six Months Ended June 30, 2011	Commercial			Public Sector			Radiology Benefits Management			Specialty Pharmaceutical Management			Medicaid Administration			Corporate and Elimination			Consolidated
Net revenue	$	289,721		$	712,800		$	179,820		$	139,596		$	109,930		$	(40,774	)	$	1,391,093
Cost of care		(154,435	)		(614,855	)		(108,545	)		—			(38,085	)		40,774			(875,146	)
Cost of goods sold		—			—			—			(109,923	)		—			—			(109,923	)
Direct service costs		(76,920	)		(33,462	)		(32,563	)		(12,095	)		(51,835	)		—			(206,875	)
Other operating expenses		—			—			—			—			—			(56,471	)		(56,471	)
Stock compensation expense(1)		469			436			883			259			64			6,872			8,983
Segment profit (loss)	$	58,835		$	64,919		$	39,595		$	17,837		$	20,074		$	(49,599	)	$	151,661

(1)

Stock compensation expense is included in direct service costs and other operating expenses, however this amount is excluded from the computation of Segment Profit since it is managed on a consolidated basis.

Reconciliation of segment profit to income before income taxes

		Three Months Ended June 30,						Six Months Ended June 30,
		2010			2011			2010			2011
Segment profit		$	78,498		$	75,914		$	139,850		$	151,661
Stock compensation expense			(3,706	)		(4,205	)		(8,234	)		(8,983	)
Depreciation and amortization			(14,235	)		(14,267	)		(27,657	)		(28,219	)
Interest expense			(584	)		(494	)		(1,269	)		(965	)
Interest income			803			858			1,620			1,673
	Income before income taxes	$	60,776		$	57,806		$	104,310		$	115,167