Note 6 - Marketable Securities

3 Months Ended

Mar. 31, 2021

Notes to Financial Statements

Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]

6. Marketable Securities

The amortized cost and unrealized gains, net of marketable securities as of March 31, 2021 and December 31, 2020, are as follows (in thousands):

	As of March 31, 2021		As of December 31, 2020
Marketable securities:
Amortized cost	$	114,480	$	114,531
Unrealized gains, net		653,509		592,423
Total fair value	$	767,989	$	706,954

During the three months ended March 31, 2021 and 2020, there were net unrealized gains on marketable securities of $61.1 million and net unrealized losses on marketable securities of $4.7 million, respectively. These net unrealized gains and losses are included in Gain/(loss) on marketable securities, net on the Company’s Condensed Consolidated Statements of Income. See Footnote 12 of the Company’s Condensed Consolidated Financial Statements for fair value disclosure.