The supplemental disclosures of cash flow information consist of the following (in thousands):
| | | | | | | | | | Nine Months Ended September 30, | | 2019 | | 2018 | Supplemental Cash Flow Data: | | | | Cash paid for interest | $ | 3,377 |
| | $ | 1,945 |
| Cash paid for income taxes | 2,266 |
| | 1,265 |
| Right-of-use assets obtained in exchange for operating lease obligations | 31,013 |
| | — |
| Supplemental disclosures of non-cash investing and financing activities: | | | | Change in purchases of property and equipment in accounts payable and accrued expenses | 11,402 |
| | 11,004 |
| Unpaid business combination purchase price | 8,411 |
| | 3,995 |
| Fair value of common stock issued related to business combination | — |
| | (140,107 | ) | Recovery of common stock in connection with indemnification settlement agreement | 789 |
| | 2,745 |
| Fair value of common stock issued to settle the conversion of senior notes, due 2022 | — |
| | (189,916 | ) | Fair value of shares received to settle senior note hedges, due 2022 | — |
| | 189,916 |
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