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Significant Accounting Policies - Changes in Other Comprehensive Income (Loss) by Component (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Jan. 26, 2020 | Jan. 27, 2019 | Jan. 28, 2018
Defined benefit plans: |  |  |
Other comprehensive gain (loss) before reclassifications - Pre-tax | $ (9,237) | $ (2,597) | $ 637
Other comprehensive gain (loss) before reclassifications - Tax | 1,276 | 116 | (253)
Other comprehensive gain (loss) before reclassifications - Net | (7,961) | (2,481) | 384
Amounts reclassified to earnings included in Selling, general and administrative | 3,446 | 0 | 0
Amounts reclassified to earnings included in Selling, general and administrative | (476) | 0 | 0
Amounts reclassified to earnings included in Selling, general and administrative | 2,970 | 0 | 0
Available-for-sale securities: |  |  |
Other comprehensive gain before reclassifications - Pre-tax | 3,156 | 0 | 0
Other comprehensive gain before reclassifications - Tax | (650) | 0 | 0
Other comprehensive gain before reclassifications - Net | 2,506 | 0 | 0
Total other comprehensive income (loss) |  |  |
Total other comprehensive (loss) income - Pre-tax | (2,718) | (2,528) | 311
Total other comprehensive (loss) income - Tax | 159 | 121 | (217)
Other comprehensive (loss) income, net | (2,559) | (2,407) | 94
Foreign currency cash flow hedges |  |  |
Foreign currency hedge: |  |  |
Other comprehensive gain (loss) before reclassifications - Pre-tax | 66 | (164) | 1,205
Other comprehensive gain (loss) before reclassifications - Tax | (7) | 49 | (263)
Other comprehensive gain (loss) before reclassifications - Net | 59 | (115) | 942
Reclassification adjustments included in Selling, general and administrative - Pre-tax | (149) | 233 | (1,531)
Reclassification adjustments included in Selling, general and administrative - Tax | 16 | (44) | 299
Reclassification adjustments included in Selling, general and administrative - Net | $ (133) | $ 189 | $ (1,232)

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