Investments Gain (Loss) on Marketable Equity Securities) (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Investments [Abstract]
Gain on marketable equity securities, net	$ 243,088	$ 60,787	$ 98,668
Less: Net (gains) losses in earnings from marketable equity securities sold and donated	(17,830)	13,382	(2,810)
Net unrealized gains in earnings from marketable equity securities still held at the end of the year	$ 225,258	$ 74,169	$ 95,858