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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($)
$ in Thousands
12 Months Ended
Feb. 02, 2019
Feb. 03, 2018
Jan. 28, 2017
Statement of Comprehensive Income [Abstract]      
Change in unrealized loss on investments, tax $ 31 $ 17 $ 129
Reclassification adjustment for losses included in net income, tax $ 0 $ 0 $ 17