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Goodwill and Intangible Assets - Schedule of Finite-Lived Intangible Assets (Details) - USD ($)
$ in Thousands
3 Months Ended
Apr. 29, 2018
Jan. 28, 2018
Finite-Lived Intangible Assets [Line Items]    
Gross carrying amount $ 198,961 $ 198,961
Accumulated amortization (148,015) (141,054)
Net carrying amount 50,946 57,907
Core Technologies [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross carrying amount 164,930 164,930
Accumulated amortization (121,156) (115,628)
Net carrying amount $ 43,774 49,302
Core Technologies [Member] | Minimum [Member]    
Finite-Lived Intangible Assets [Line Items]    
Estimated useful life 5 years  
Core Technologies [Member] | Maximum [Member]    
Finite-Lived Intangible Assets [Line Items]    
Estimated useful life 8 years  
Customer Relationships [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross carrying amount $ 34,031 34,031
Accumulated amortization (26,859) (25,426)
Net carrying amount $ 7,172 $ 8,605
Customer Relationships [Member] | Minimum [Member]    
Finite-Lived Intangible Assets [Line Items]    
Estimated useful life 3 years  
Customer Relationships [Member] | Maximum [Member]    
Finite-Lived Intangible Assets [Line Items]    
Estimated useful life 10 years