Acquisitions - Narrative (Detail) - USD ($) $ in Thousands					3 Months Ended		6 Months Ended
	Nov. 30, 2015	Aug. 14, 2015	Feb. 03, 2015	Oct. 01, 2014	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Business Acquisition [Line Items]
Amortization of acquired intangible assets					$ 3,800	$ 3,200	$ 7,300	$ 6,400
Income tax provision (benefit)					78,220	1,560	74,850	(1,550)
Restructuring charges					7,300
Acquisition, net of cash acquired							125,498	17,257
BioStorage Technologies, Inc.
Business Acquisition [Line Items]
Escrow Deposit	$ 5,400
Percentage of voting interests acquired	100.00%
Total purchase price, net of cash acquired	$ 125,498
Payments to acquire businesses	130,700
Cash acquired	2,800
Repayment of sellers' debt	3,200
Acquisition related costs	2,900						3,100	2,900
Escrow deposit for acquiree's warranties and other indemnities	1,900
Escrow deposit for potential purchase price adjustments	1,000
Escrow deposit for acquiree's employees retention obligations	2,500				1,900		1,900
Actual revenues					11,400		17,900
Actual net earnings (loss)					(200)		(800)
Amortization of acquired intangible assets					800
Amortization							1,200
Compensation expense					400		500
Restructuring charges						800		1,600
Acquisition, net of cash acquired	128,000
Debt assumed	385
Escrow reserve	$ 2,900
Escrow deposit for third-party arrangements termination					(600)
BioStorage Technologies, Inc. | Trademarks
Business Acquisition [Line Items]
Finite-lived intangibles					4,900		4,900
Useful life of intangible assets acquired	8 years
BioStorage Technologies, Inc. | Customer Relationships
Business Acquisition [Line Items]
Finite-lived intangibles					36,600		36,600
Useful life of intangible assets acquired	11 years
Contact Co., Ltd
Business Acquisition [Line Items]
Payments to acquire businesses		$ 1,900
Cash acquired		4,800
Actual revenues					1,500		2,200
Actual net earnings (loss)					(100)		(600)
Inventory Step Up					200		400
Amortization of acquired intangible assets					200		400
Acquisition, net of cash acquired		6,834
Debt assumed		8,800
Contingent consideration		800			500		500
Measurement period adjustment					(1,100)
Change in amount of contingent consideration liability					(200)		(300)
Escrow reserve					750		750		$ 1,500
Escrow deposit for third-party arrangements termination					(750)
Contact Co., Ltd | Completed Technology
Business Acquisition [Line Items]
Finite-lived intangibles		$ 2,290
Useful life of intangible assets acquired		5 years
FluidX
Business Acquisition [Line Items]
Acquisition related costs								300
Actual revenues					3,900	3,800	7,600	7,400
Actual net earnings (loss)					(300)	400	(400)	(100)
Amortization of acquired intangible assets					300		600	700
Acquisition, net of cash acquired				$ 15,505
Escrow reserve					$ 1,500		1,500
Adjustment to equity interests			$ 100
FluidX | Completed Technology
Business Acquisition [Line Items]
Finite-lived intangibles				$ 1,230
Useful life of intangible assets acquired				5 years
FluidX | Trademarks
Business Acquisition [Line Items]
Finite-lived intangibles				$ 750
Useful life of intangible assets acquired				5 years
FluidX | Customer Relationships
Business Acquisition [Line Items]
Finite-lived intangibles				$ 4,810
Useful life of intangible assets acquired				5 years
Pro Forma | BioStorage Technologies, Inc.
Business Acquisition [Line Items]
Amortization						700	500	1,400
Income tax provision (benefit)						$ 800	$ 500	$ 2,100