Acquisitions, Goodwill and Other Intangible Assets - Additional Information (Detail) - USD ($)		1 Months Ended	3 Months Ended		9 Months Ended		12 Months Ended
	Jun. 02, 2014	Jun. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Business Acquisition [Line Items]
Business acquisition, upfront payment	$ 21,170,000					$ 21,236,000
Business acquisition, common stock shares issued, par value			$ 0.01		$ 0.01		$ 0.01
Business acquisition, common stock shares issued, value	4,000,000
Business acquisition, estimated fair value of contingent consideration	1,370,000
Payment of contingent considerations					$ 99,000	604,000
Business acquisition, fair value of the net assets acquired	26,540,000
Finite lived intangible asset, useful life					10 years		10 years
Amortization expense					$ 1,201,000
Customer relationships
Business Acquisition [Line Items]
Fair value of acquired finite lived intangible assets	6,400,000
Finite lived intangible asset, useful life					9 years		9 years
Technology - developed
Business Acquisition [Line Items]
Fair value of acquired finite lived intangible assets	2,000,000
Finite lived intangible asset, useful life					12 years		12 years
Trademark / tradename
Business Acquisition [Line Items]
Fair value of acquired indefinite lived intangible assets	700,000
In process research and development ("IPR&D")
Business Acquisition [Line Items]
Fair value of acquired indefinite lived intangible assets	1,600,000
Refine Technology, LLC
Business Acquisition [Line Items]
Working capital adjustment on purchase price	$ 66,000
Business acquisition, common stock shares issued	215,285
Business acquisition, common stock shares issued, par value	$ 0.01
Business acquisition, common stock shares issued, value	$ 4,000,000
Business acquisition, fair value of the net assets acquired	26,540,000
Business acquisition, transaction costs	818,000
Goodwill expected deductible period for tax purposes					15 years
Business acquisition, revenue		$ 466,000	$ 3,800,000	$ 2,200,000	$ 9,200,000	$ 2,600,000
Refine Technology, LLC | Milestone Payments
Business Acquisition [Line Items]
Business acquisition, maximum potential contingent payment	10,900,000		$ 9,900,000		9,900,000
Business acquisition, estimated fair value of contingent consideration	1,370,000
Payment of contingent considerations					$ 1,000,000
Refine Technology, LLC | Up Front Payment
Business Acquisition [Line Items]
Business acquisition, upfront payment	21,236,000
Refine Technology, LLC | Resolution, Withdrawal or Settlement of Certain Patent Disputes
Business Acquisition [Line Items]
Business acquisition, maximum potential contingent payment	7,500,000
Refine Technology, LLC | Transition Services Agreement
Business Acquisition [Line Items]
Business acquisition, other consideration transferred	774,000
Refine Technology, LLC | Customer relationships
Business Acquisition [Line Items]
Fair value of acquired finite lived intangible assets	$ 6,400,000
Finite lived intangible asset, useful life	10 years
Refine Technology, LLC | Technology - developed
Business Acquisition [Line Items]
Fair value of acquired finite lived intangible assets	$ 2,000,000
Finite lived intangible asset, useful life	15 years
Refine Technology, LLC | Trademark / tradename
Business Acquisition [Line Items]
Fair value of acquired indefinite lived intangible assets	$ 700,000
Refine Technology, LLC | In process research and development ("IPR&D")
Business Acquisition [Line Items]
Fair value of acquired indefinite lived intangible assets	$ 1,600,000