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Acquisition of Atoll GmbH (Detail) - USD ($) |  | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Apr. 01, 2016 | Sep. 30, 2016 | Dec. 31, 2015
Business Acquisition [Line Items] |  |  |
Common stock, par value |  | $ 0.01 | $ 0.01
Finite lived intangible asset, useful life |  | 12 years | 10 years
Customer relationships |  |  |
Business Acquisition [Line Items] |  |  |
Finite lived intangible asset, useful life |  | 11 years | 9 years
Technology - developed |  |  |
Business Acquisition [Line Items] |  |  |
Finite lived intangible asset, useful life |  | 13 years | 12 years
Atoll GmbH |  |  |
Business Acquisition [Line Items] |  |  |
Stock consideration | 538,700 |  |
Common stock, par value | $ 0.01 |  |
Value of common stock issued | $ 14,138,000 |  |
Business combination, consideration transferred | 25,266,000 |  |
Cash consideration | 10,176,000 |  |
Working capital adjustments | 74,000 |  |
Earnout consideration | 1,100,000 |  |
Estimated fair value of contingent consideration | 952,000 |  |
Fair value of net assets acquired | 25,266,000 |  |
Business acquisition, transaction costs | 1,262,000 |  |
Fair value of acquired finite lived intangible assets | 7,561,000 |  |
Atoll GmbH | Customer relationships |  |  |
Business Acquisition [Line Items] |  |  |
Fair value of acquired finite lived intangible assets | $ 5,318,000 |  |
Finite lived intangible asset, useful life | 16 years |  |
Atoll GmbH | Technology - developed |  |  |
Business Acquisition [Line Items] |  |  |
Fair value of acquired finite lived intangible assets | $ 2,175,000 |  |
Finite lived intangible asset, useful life | 14 years |  |
Atoll GmbH | Non-competition agreements |  |  |
Business Acquisition [Line Items] |  |  |
Fair value of acquired finite lived intangible assets | $ 57,000 |  |
Finite lived intangible asset, useful life | 2 years |  |
Atoll GmbH | Trademark/ tradename |  |  |
Business Acquisition [Line Items] |  |  |
Fair value of acquired finite lived intangible assets | $ 11,000 |  |
Finite lived intangible asset, useful life | 2 years |  |
Atoll GmbH | Up Front Payment |  |  |
Business Acquisition [Line Items] |  |  |
Cash consideration | $ 10,200,000 |  |

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