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Commitments and Contingencies - Narrative (Details) - USD ($) $ in Thousands | Jul. 29, 2018 | Jan. 28, 2018 | Jul. 01, 2017
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Commitments and Contingencies [Line Items] |  |  |
Earn-out liability booked | $ 26,200 | $ 26,520 |
Amount expected to be settled within twelve months | 11,687 |  |
Cycleo |  |  |
Commitments and Contingencies [Line Items] |  |  |
Potential payments under earn-out arrangements, high estimate | 16,000 |  |
Earn-out liability booked | 6,100 | 5,520 |
Amount expected to be settled within twelve months | 2,187 |  |
AptoVision Technologies Inc. |  |  |
Commitments and Contingencies [Line Items] |  |  |
Earn-out liability booked | 20,100 | $ 21,000 |
Amount expected to be settled within twelve months | 9,500 |  |
Minimum [Member] | Environmental Issue |  |  |
Commitments and Contingencies [Line Items] |  |  |
Loss contingency, estimate of possible loss | 3,600 |  |
Maximum [Member] | AptoVision Technologies Inc. |  |  |
Commitments and Contingencies [Line Items] |  |  |
Potential payments under earn-out arrangements, high estimate |  |  | $ 47,000
Maximum [Member] | Environmental Issue |  |  |
Commitments and Contingencies [Line Items] |  |  |
Loss contingency, estimate of possible loss | $ 7,200 |  |

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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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