Note 6 - Marketable Securities

6 Months Ended

Jun. 30, 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 June 30, 2021 and December 31, 2020, are as follows (in thousands):

	As of June 30, 2021		As of December 31, 2020
Marketable securities:
Amortized cost	$	114,331	$	114,531
Unrealized gains, net		677,805		592,423
Total fair value	$	792,136	$	706,954

During the three months ended June 30, 2021 and 2020, there were net unrealized gains on marketable securities of $24.3 million and $526.2 million, respectively. During the six months ended June 30, 2021 and 2020, the net unrealized gains on a marketable securities were $85.4 million and $521.6 million, respectively. These net unrealized gains are included in Gain 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.