Segment Information (Tables)

9 Months Ended

Sep. 24, 2016

Segment Reporting [Abstract]

Schedule of Revenue and Other Financial Information by Business Segment

The revised reportable segments are as follows:

Research Models and Services	Discovery and Safety Assessment	Manufacturing Support
Research Models	Discovery Services	Microbial Solutions
Research Model Services	Safety Assessment	Avian
		Biologics
		Contract Manufacturing

The following table presents revenue and other financial information by reportable segment:

	Three Months Ended				Nine Months Ended
	September 24, 2016		September 26, 2015		September 24, 2016		September 26, 2015
	(in thousands)
RMS
Revenue	$	120,928	$	117,894	$	369,325	$	356,570
Operating income	31,224		31,427		103,055		93,581
Depreciation and amortization	5,245		5,279		15,613		16,590
Capital expenditures	2,532		3,022		5,966		12,111
DSA
Revenue	$	215,817	$	158,272	$	594,859	$	451,659
Operating income	31,303		33,191		94,514		84,856
Depreciation and amortization	20,671		11,509		51,228		35,060
Capital expenditures	4,509		4,277		13,860		13,756
Manufacturing
Revenue	$	88,975	$	73,299	$	250,459	$	201,223
Operating income	26,711		18,491		73,447		55,872
Depreciation and amortization	6,181		5,179		18,682		12,156
Capital expenditures	1,862		2,139		8,247		5,475

Reconciliation of Segment Operating Income to Consolidated Operating Income

For the three months ended September 24, 2016 and September 26, 2015, reconciliations of segment operating income, depreciation and amortization, and capital expenditures to the respective consolidated amounts are as follows:

	Operating Income						Depreciation and Amortization				Capital Expenditures
	September 24, 2016			September 26, 2015			September 24, 2016		September 26, 2015		September 24, 2016		September 26, 2015
	(in thousands)
Total reportable segments	$	89,238		$	83,109		$	32,097	$	21,967	$	8,903	$	9,438
Unallocated corporate	(30,443		)	(27,669		)	2,011		1,847		665		1,014
Total consolidated	$	58,795		$	55,440		$	34,108	$	23,814	$	9,568	$	10,452

For the nine months ended September 24, 2016 and September 26, 2015, reconciliations of segment operating income, depreciation and amortization, and capital expenditures to the respective consolidated amounts are as follows:

	Operating Income						Depreciation and Amortization				Capital Expenditures
	September 24, 2016			September 26, 2015			September 24, 2016		September 26, 2015		September 24, 2016		September 26, 2015
	(in thousands)
Total reportable segments	$	271,016		$	234,309		$	85,523	$	63,806	$	28,073	$	31,342
Unallocated corporate	(102,688		)	(80,129		)	5,593		5,524		1,536		3,666
Total consolidated	$	168,328		$	154,180		$	91,116	$	69,330	$	29,609	$	35,008

Schedule of Net Sales for Each Significant Product or Service Offering

Revenue for each significant product or service offering is as follows:

	Three Months Ended				Nine Months Ended
	September 24, 2016		September 26, 2015		September 24, 2016		September 26, 2015
	(in thousands)
RMS	$	120,928	$	117,894	$	369,325	$	356,570
DSA	215,817		158,272		594,859		451,659
Manufacturing	88,975		73,299		250,459		201,223
Total revenue	$	425,720	$	349,465	$	1,214,643	$	1,009,452

Summary of Unallocated Corporate Overhead

A summary of unallocated corporate expense consists of the following:

	Three Months Ended				Nine Months Ended
	September 24, 2016		September 26, 2015		September 24, 2016		September 26, 2015
	(in thousands)
Stock-based compensation	$	6,739	$	6,802	$	20,593	$	19,501
Compensation, benefits, and other employee-related expenses	9,048		6,821		29,327		24,751
External consulting and other service expenses	4,545		4,280		16,377		11,051
Information Technology	2,903		2,618		8,399		6,167
Depreciation	2,011		1,847		5,593		5,524
Acquisition and integration	2,033		3,478		13,056		7,072
Other general unallocated corporate	3,164		1,823		9,343		6,063
Total unallocated corporate expense	$	30,443	$	27,669	$	102,688	$	80,129