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Amount of liability recognized arising from contingent consideration in a business combination.

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Fair value portion of other assets.

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Fair Value Measurement - Additional Information (Detail) € in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($)	Sep. 30, 2016 EUR (€)	Sep. 30, 2015 USD ($)	May 24, 2016 USD ($)	Apr. 01, 2016 USD ($)	Apr. 01, 2016 EUR (€)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of other assets	$ 0		$ 0
Fair value of other liabilities	0		0
Payment of contingent considerations			498,000		$ 99,000
Increase to milestone payment	675,000	$ 233,000	$ 3,317,000		$ 2,114,000
2.125% Convertible Senior Notes due 2021
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Principal amount						$ 115,000,000
Notes, due date			Jun. 01, 2021	Jun. 01, 2021
Notes, frequency of periodic payment			Semi-annually	Semi-annually
Notes, date of first required payment			Dec. 01, 2016	Dec. 01, 2016
Total convertible senior notes	94,318,000		$ 94,318,000
Fair value of convertible senior notes	131,800,000		131,800,000
Refine Technology, LLC \| Milestone Payments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Payment of contingent considerations			4,350,000
Atoll GmbH
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Accrued Balance							$ 952,000
Bio Flash
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Payment of contingent considerations			500,000
Bio Flash \| Selling, general and administrative
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Payment of contingent considerations			199,000
Bio Flash \| Minimum
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Royalty payment			130,000
Bio Flash \| Contingent Consideration
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Payment of contingent considerations			301,000
Significant unobservable inputs (Level 3) \| Refine Technology, LLC \| Milestone Payments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Increase to milestone payment			3,156,000
Accrued Balance	5,175,000		5,175,000
Significant unobservable inputs (Level 3) \| Atoll GmbH \| Milestone Payments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Increase to milestone payment			148,000	€ 132
Accrued Balance	$ 1,085,000		$ 1,085,000				$ 928,000	€ 836