Table:
|  | 2019 | 2018 | 2017 |
| --- | --- | --- | --- |
| Supplemental cash flow information: |  |  |  |
| Cash paid for interest | $750.2 | $789.7 | $712.1 |
| Cash paid for income taxes (net of refunds of $11.2, $25.0 and $20.7, respectively) | 147.5 | 163.9 | 136.5 |
| Non-cash investing and financing activities: |  |  |  |
| (Decrease) increase in accounts payable and accrued expenses for purchases of property and equipment and construction activities | (21.0) | 8.3 | 34.0 |
| Purchases of property and equipment under finance leases, perpetual easements and capital leases | 81.3 | 57.8 | 54.8 |
| Fair value of debt assumed through acquisitions | 329.8 | — | — |
| Acquisition of Commercialization Rights (1) | — | 24.8 | — |
| Conversion of third-party debt to equity | — | — | 48.2 |
| Debt financed acquisition of communication sites | — | 54.2 | — |
Paragraphs:
AMERICAN TOWER CORPORATION AND SUBSIDIARIES NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
20. SUPPLEMENTAL CASH FLOW INFORMATION
Supplemental cash flow information and non-cash investing and financing activities are as follows for the years ended December 31,:
(1) Related to the note extinguishment with TV Azteca, S.A. de C.V. in 2018.
Question:
What was the Acquisition of Commercialization Rights related to?