Acquisitions - Narrative (Detail) - USD ($)				3 Months Ended		12 Months Ended
	Nov. 28, 2016	Nov. 27, 2016	Nov. 30, 2015	Dec. 31, 2016	Dec. 31, 2015	Sep. 30, 2016
Business Acquisition [Line Items]
Non-cash consideration transferred				$ 10,348,000	$ 0
Amortization of acquired intangible assets				4,100,000	3,500,000
Acquisition, net of cash acquired				5,346,000	125,498,000
Income tax provision (benefit)				2,800,000	(3,370,000)
Restructuring charges				975,000	1,475,000
Cool Lab, LLC
Business Acquisition [Line Items]
Percentage of voting interests acquired (as a percent)	100.00%
Equity interest in acquiree, percentage (as a percent)	20.00%
Net carrying value of assets transferred		$ 900,000
Total purchase price, net of cash acquired	$ 15,194,000
Payments to acquire businesses	4,800,000
Liabilities incurred	100,000
Non-cash consideration transferred	10,300,000
Equity method investments, fair value disclosure	3,100,000
Convertible debt securities and warrants	5,600,000
Term notes, fair value disclosure	1,600,000
Aggregate carrying value	$ 8,600,000
Gain of fair value measurement included in earnings				1,600,000
Weighted average useful life of intangible assets (in years)	5 years 5 months 24 days
Liabilities arising from contingencies, amount recognized	$ 700,000
Actual revenues				300,000
Actual net loss				(100,000)
Inventory step up				100,000
Amortization of acquired intangible assets				100,000
Cool Lab, LLC | Customer Relationships
Business Acquisition [Line Items]
Finite-lived intangible assets acquired	$ 3,600,000
Useful life of intangible assets acquired (in years)	3 years
Cool Lab, LLC | Completed Technology
Business Acquisition [Line Items]
Finite-lived intangible assets acquired	$ 1,200,000
Useful life of intangible assets acquired (in years)	8 years
Cool Lab, LLC | Other Customer Relationship
Business Acquisition [Line Items]
Finite-lived intangible assets acquired	$ 1,300,000
Useful life of intangible assets acquired (in years)	10 years
BioStorage Technologies, Inc.
Business Acquisition [Line Items]
Percentage of voting interests acquired (as a percent)			100.00%
Total purchase price, net of cash acquired			$ 125,248,000
Payments to acquire businesses			$ 130,700,000
Weighted average useful life of intangible assets (in years)			10 years 7 months 12 days
Actual revenues				16,600,000	6,500,000
Actual net loss				1,500,000	(600,000)
Inventory step up					100,000
Amortization of acquired intangible assets				1,100,000	300,000
Acquisition related costs			$ 2,900,000	100,000	2,900,000
Cash acquired			2,800,000
Acquisition, net of cash acquired			128,000,000
Escrow reserve			2,900,000	1,900,000
Escrow deposit for acquiree's employees retention obligations			2,500,000	0		$ 100,000
Escrow deposit for third-party arrangements termination				2,500,000
Repayment of sellers' debt			3,200,000
Proceeds from settlement of business acquisition working capital adjustments						200,000
Business acquisition, decrease in goodwill						$ 200,000
Escrow deposit			5,400,000
Escrow deposit for acquiree's warranties and other indemnities			1,900,000
Escrow deposit for potential purchase price adjustments			$ 1,000,000
Compensation expense				100,000	700,000
Restructuring charges					800,000
BioStorage Technologies, Inc. | Trademarks
Business Acquisition [Line Items]
Useful life of intangible assets acquired (in years)			8 years
Finite-lived intangibles				4,900,000
BioStorage Technologies, Inc. | Customer Relationships
Business Acquisition [Line Items]
Useful life of intangible assets acquired (in years)			11 years
Finite-lived intangibles				36,600,000
Pro Forma | BioStorage Technologies, Inc.
Business Acquisition [Line Items]
Amortization					500,000
Income tax provision (benefit)					$ 500,000
Selling, General and Administrative Expenses | Cool Lab, LLC
Business Acquisition [Line Items]
Acquisition related costs				$ 200,000