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Commitments and Contingencies - Summary of Earn-out Liability (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Jan. 28, 2018 | Jan. 29, 2017
Business Acquisition, Contingent Consideration [Line Items] |  |
Earn-out liability | $ 26,520 | $ 6,068
Earn-out liability expected to be settled within twelve months | 10,908 |
Amount settled | 1,580 |
Cycleo [Member] |  |
Business Acquisition, Contingent Consideration [Line Items] |  |
Earn-out liability | 5,520 | 6,068
Earn-out liability expected to be settled within twelve months | 2,008 |
Amount settled | 1,580 |
AptoVision |  |
Business Acquisition, Contingent Consideration [Line Items] |  |
Earn-out liability | 21,000 | 0
Earn-out liability expected to be settled within twelve months | 8,900 |
Amount settled | 0 |
Compensation Expense [Member] |  |
Business Acquisition, Contingent Consideration [Line Items] |  |
Earn-out liability | 4,408 | 4,576
Compensation Expense [Member] | Cycleo [Member] |  |
Business Acquisition, Contingent Consideration [Line Items] |  |
Earn-out liability | 4,408 | 4,576
Compensation Expense [Member] | AptoVision |  |
Business Acquisition, Contingent Consideration [Line Items] |  |
Earn-out liability | 0 | 0
Not Conditional Upon Future Employment [Member] |  |
Business Acquisition, Contingent Consideration [Line Items] |  |
Earn-out liability | 21,668 | 949
Not Conditional Upon Future Employment [Member] | Cycleo [Member] |  |
Business Acquisition, Contingent Consideration [Line Items] |  |
Earn-out liability | 668 | 949
Not Conditional Upon Future Employment [Member] | AptoVision |  |
Business Acquisition, Contingent Consideration [Line Items] |  |
Earn-out liability | 21,000 | 0
Interest Expense [Member] |  |
Business Acquisition, Contingent Consideration [Line Items] |  |
Earn-out liability | 444 | 543
Interest Expense [Member] | Cycleo [Member] |  |
Business Acquisition, Contingent Consideration [Line Items] |  |
Earn-out liability | 444 | 543
Interest Expense [Member] | AptoVision |  |
Business Acquisition, Contingent Consideration [Line Items] |  |
Earn-out liability | $ 0 | $ 0

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- Definition Amount of liability recognized arising from contingent consideration in a business combination. + 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 (c) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 35 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6911338&loc=d3e6819-128478 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 25 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6408-128476 + Details
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