Segment Information (Tables)

9 Months Ended

Sep. 30, 2015

Segment Reporting [Abstract]

Schedule of Selected Information for Each Reportable Segment

Selected information for each reportable segment is as follows (in thousands):

	Three Months Ended September 30,						Nine Months Ended September 30,
	2015			2014			2015			2014
Net Revenues
Clinical	$	244,570		$	215,695		$	697,816		$	648,669
Commercial		279,147			248,242			773,155			689,989
Intersegment revenues		(2,307	)		(1,546	)		(9,167	)		(4,893	)
Consolidated net revenues	$	521,410		$	462,391		$	1,461,804		$	1,333,765
Adjusted Segment Operating Income (Loss)
Clinical	$	38,713		$	25,140		$	92,831		$	70,002
Commercial		46,312			35,146			121,177			87,313
Corporate and other		(10,908	)		(10,050	)		(29,842	)		(20,372	)
Reportable segments adjusted operating income (loss)		74,117			50,236			184,166			136,943
Depreciation and amortization		(23,625	)		(26,555	)		(72,536	)		(80,137	)
Stock-based compensation		(1,632	)		22			(2,147	)		(422	)
Other unallocated charges		(4,941	)		(4,554	)		(18,374	)		(17,167	)
Operating income (loss)	$	43,919		$	19,149		$	91,109		$	39,217
Loss on extinguishment of debt and refinancing costs		—			(10,062	)		—			(10,062	)
Interest income (expense), net		(57,294	)		(54,988	)		(170,877	)		(160,672	)
Other income		11,318			—			11,318			—
Income (loss) before income tax (provision) benefit and income (loss) from equity investments.	$	(2,057	)	$	(45,901	)	$	(68,450	)	$	(131,517	)