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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions | 6 Months Ended
--- | ---
Jun. 30, 2024 | Jun. 30, 2023
Cash flow from operating activities |  |  |
Net income |  | $ 242.8 | $ 112.2
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Depreciation and amortization |  | 63.8 | 85.2
Stock-based compensation |  | 168.5 | 171.3
Net loss on real estate assets | [1] | 0.0 | 2.2
Amortization of debt issuance costs |  | 2.1 | 2.1
Amortization of deferred commissions |  | 14.9 | 20.8
Non-cash operating lease expense |  | 18.1 | 23.5
Deferred taxes |  | 0.5 | 7.5
Other |  | 0.1 | 0.5
Changes in operating assets and liabilities: |  |  |
Trade and other receivables, net |  | 1.1 | (6.5)
Prepaid expenses and other current assets |  | (21.7) | (17.6)
Other assets |  | 2.0 | 3.7
Accounts payable |  | (1.8) | 6.9
Accrued and other current liabilities |  | (18.0) | (7.6)
Accrued compensation and benefits |  | (42.0) | (65.1)
Deferred revenue |  | 16.6 | 31.3
Other non-current liabilities |  | 2.4 | (7.6)
Operating lease liabilities |  | (28.4) | (35.3)
Cash paid for lease termination |  | (14.9) | 0.0
Net cash provided by operating activities |  | 406.1 | 327.5
Cash flow from investing activities |  |  |
Capital expenditures |  | (15.1) | (4.9)
Business combinations, net of cash acquired |  | (21.1) | 0.0
Purchases of short-term investments |  | (62.3) | (47.9)
Proceeds from sales of short-term investments |  | 58.6 | 331.6
Proceeds from maturities of short-term investments |  | 206.5 | 119.4
Other |  | 10.3 | 8.7
Net cash provided by investing activities |  | 176.9 | 406.9
Cash flow from financing activities |  |  |
Payments of debt issuance costs |  | 0.0 | (0.1)
Payments for taxes related to net share settlement of restricted stock units and awards |  | (76.0) | (66.2)
Proceeds from issuance of common stock, net of taxes withheld |  | 0.1 | 1.2
Principal payments on finance lease obligations |  | (63.9) | (63.9)
Common stock repurchases |  | (539.6) | (329.6)
Net cash used in financing activities |  | (679.4) | (458.6)
Effect of exchange rate changes on cash and cash equivalents |  | (3.4) | 1.7
Change in cash and cash equivalents |  | (99.8) | 277.5
Cash and cash equivalents - beginning of period |  | 614.9 | 232.8
Cash and cash equivalents - end of period |  | 515.1 | 510.3
Supplemental cash flow data: |  |  |
Property and equipment acquired under finance leases |  | $ 61.9 | $ 67.9
[1] | Includes impairment charges related to real estate assets as a result of the Company's Virtual First work model.

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