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Goodwill and Intangible Assets - Summary of Intangible Assets (Detail) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2018 | Dec. 31, 2017
Finite Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | $ 37,875 | $ 37,875
Accumulated Amortization | (4,930) | (4,166)
Foreign Currency Translation | (956) | (570)
Net Carrying Amount | 31,989 | 33,139
Customer Relationships [Member] | Allenex [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | 12,650 | 12,650
Accumulated Amortization | (1,609) | (1,394)
Foreign Currency Translation | (411) | (250)
Net Carrying Amount | $ 10,630 | $ 11,006
Estimated useful life of identified intangible asset | 12 years 9 months 18 days | 13 years
Customer Relationships [Member] | Conexio [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | $ 28 | $ 28
Accumulated Amortization | (4) | (3)
Foreign Currency Translation | 0 | 1
Net Carrying Amount | $ 24 | $ 26
Estimated useful life of identified intangible asset | 7 years 9 months 18 days | 8 years 1 month 6 days
Developed Technology [Member] | Olerup [Member] | SSP [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | $ 11,650 | $ 11,650
Accumulated Amortization | (2,244) | (1,942)
Foreign Currency Translation | (392) | (258)
Net Carrying Amount | $ 9,014 | $ 9,450
Estimated useful life of identified intangible asset | 7 years 9 months 18 days | 8 years
Trademarks [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | $ 2,260 | $ 2,260
Accumulated Amortization | (348) | (310)
Foreign Currency Translation | (13) | 16
Net Carrying Amount | $ 1,899 | $ 1,966
Estimated useful life of identified intangible asset | 12 years 9 months 18 days | 13 years
Acquired Technology - QTYPE | Olerup [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | $ 4,510 | $ 4,510
Accumulated Amortization | (454) | (376)
Foreign Currency Translation | (143) | (84)
Net Carrying Amount | $ 3,913 | $ 4,050
Estimated useful life of identified intangible asset | 12 years 9 months 18 days | 13 years
Acquired Technology SBT [Member] | Olerup [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | $ 127 | $ 127
Accumulated Amortization | (18) | (14)
Foreign Currency Translation | 3 | 5
Net Carrying Amount | $ 112 | $ 118
Estimated useful life of identified intangible asset | 7 years 9 months 18 days | 8 years 1 month 6 days
Acquired Technology dd-cfDNA [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | $ 6,650 | $ 6,650
Accumulated Amortization | (253) | (127)
Foreign Currency Translation | 0 | 0
Net Carrying Amount | $ 6,397 | $ 6,523
Estimated useful life of identified intangible asset | 12 years 7 months 6 days | 12 years 10 months 24 days

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