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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 |  |  |  |  |  |

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Amount of tangible or intangible assets, including a business or subsidiary of the acquirer transferred by the entity to the former owners of the acquiree. Excludes cash. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 + Details
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- Definition This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=56956515&loc=d3e1392-128463 + Details
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- Definition Amount of assets, excluding financial assets and goodwill, that lack physical substance, having a projected indefinite period of benefit, acquired at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=56956791&loc=d3e4845-128472 + Details
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- Definition Amount of intangible assets, excluding goodwill, acquired at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=56956791&loc=d3e4845-128472 + Details
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