Table:
|  | Balance Sheet Line Item | 2019 | 2018 |
| --- | --- | --- | --- |
| Cash and cash equivalents | Cash and cash equivalents | $ 1,352,741 | $ 1,403,562 |
| Restricted cash – current (1) | Prepaid expenses and other current assets | 13,697 | 19,671 |
| Restricted cash – noncurrent (1) . | Restricted cash and investments | 80,072 | 139,390 |
| Total cash, cash equivalents, and restricted cash |  | $ 1,446,510 | $ 1,562,623 |
Paragraphs:
The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within our consolidated balance sheets as of December 31, 2019 and 2018 to the total of such amounts as presented in the consolidated statements of cash flows (in thousands):
(1) See Note 7. “Restricted Cash and Investments” to our consolidated financial statements for discussion of our “Restricted cash” arrangements.
During the year ended December 31, 2019, we sold marketable securities for proceeds of $52.0 million and realized no gain or loss on such sales. During the years ended December 31, 2018 and 2017, we sold marketable securities for proceeds of $10.8 million and $118.3 million, respectively, and realized gains of less than $0.1 million on such sales in each respective period. See Note 11. “Fair Value Measurements” to our consolidated financial statements for information about the fair value of our marketable securities.
Question:
What amount of marketable securities were sold in 2019?
Answer: During the year ended December 31, 2019, we sold marketable securities for proceeds of $52.0 million and realized no gain or loss on such sales.