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Fair Value Measurements - Additional Information (Detail) - Contingent Consideration Liability [Member] $ in Millions | 6 Months Ended
--- | ---
Jul. 28, 2018 USD ($) yr
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Estimated earnout targets | $ 0.5
Estimated earnout targets | $ 1.4
Measurement Input, Expected Term [Member] |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Fair value measurement input | yr | 7
Minimum [Member] |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Probability of success | 0.00%
Minimum [Member] | Measurement Input, Discount Rate [Member] |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Fair value measurement input | 0.0268
Maximum [Member] |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Probability of success | 0.90%
Maximum [Member] | Measurement Input, Discount Rate [Member] |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Fair value measurement input | 0.049

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- Definition This element represents the amount of any change recognized during the period in the high-end of the estimated range of outcomes (undiscounted) of a liability assumed in a business combination arising from an item of contingent consideration. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 4 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e7008-128479 + Details
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- Definition This element represents the amount of any change recognized during the period in the low-end of the estimated range of outcomes (undiscounted) of a liability assumed in a business combination arising from an item of contingent consideration. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 4 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e7008-128479 + Details
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