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v3.20.1

Selected Quarterly Financial Information (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jan. 31, 2020 | Oct. 31, 2019 | Jul. 31, 2019 | Apr. 30, 2019 | Jan. 31, 2019 | Oct. 31, 2018 | Jul. 31, 2018 | Apr. 30, 2018 | Jan. 31, 2020 | Jan. 31, 2019 | Jan. 31, 2018
Quarterly Financial Information Disclosure [Abstract] |  |  |  |  |  |  |  |  |  |  |
Net revenue | $ 899.3 | $ 842.7 | $ 796.8 | $ 735.5 | $ 737.3 | $ 660.9 | $ 611.7 | $ 559.9 | $ 3,274.3 | $ 2,569.8 | $ 2,056.6
Gross profit | 816.1 | 763.2 | 717.3 | 652.8 | 660.3 | 588.6 | 541.9 | 493.1 | 2,949.4 | 2,283.9 | 1,753.2
Income from operations | 133.8 | 110.6 | 73.8 | 24.8 | 40.3 | 14.7 | (24.7) | (55.3) | 343.0 | (25.0) | (509.1)
(Provision) benefit for income taxes | 8.5 | (29.7) | (26.3) | (32.8) | 31.7 | (35.2) | (16.0) | (18.6) | (80.3) | (38.1) | (9.6)
Net income (loss) | $ 131.8 | $ 66.7 | $ 40.2 | $ (24.2) | $ 64.7 | $ (23.7) | $ (39.4) | $ (82.4) | $ 214.5 | $ (80.8) | $ (566.9)
Basic net (loss) income per share (in dollars per share) | $ 0.60 | $ 0.30 | $ 0.18 | $ (0.11) | $ 0.30 | $ (0.11) | $ (0.18) | $ (0.38) | $ 0.98 | $ (0.37) | $ (2.58)
Diluted net (loss) income per share (in dollars per share) | $ 0.59 | $ 0.30 | $ 0.18 | $ (0.11) | $ 0.29 | $ (0.11) | $ (0.18) | $ (0.38) | $ 0.96 | $ (0.37) | $ (2.58)
(Loss) Income from operations includes the following items: |  |  |  |  |  |  |  |  |  |  |
Stock-based compensation expense | $ 105.0 | $ 94.0 | $ 88.2 | $ 75.2 | $ 74.0 | $ 64.2 | $ 56.9 | $ 54.4 | $ 362.4 | $ 249.5 |
Amortization of acquisition related intangibles | 18.0 | 18.1 | 18.3 | 19.0 | 11.1 | 7.8 | 7.2 | 7.4 | 73.4 | 33.5 |
CEO transition costs |  |  |  |  | 0.0 | 0.0 | (0.1) | 0.0 |  | (0.1) |
Acquisition related costs | 2.1 | 2.5 | 6.0 | 12.7 | 11.9 | 1.8 | 2.5 | 0.0 | 23.3 | 16.2 |
Restructuring and other exit costs, net | $ 0.0 | $ 0.1 | $ 0.2 | $ 0.2 | $ 1.9 | $ 3.7 | $ 13.8 | $ 22.5 | $ 0.5 | $ 41.9 | $ 94.1

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