Other Assets - Notes Receivable Due From Equity Instruments (Details) - USD ($) $ in Thousands		Sep. 30, 2021	Dec. 31, 2020
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Total notes receivable due from equity investments		$ 136,255	$ 164,596
Less-current portion	[1]	19,627	29,501
Long-term portion	[2]	$ 116,628	$ 135,095

[1] Included within Trade and other receivables, net in our consolidated balance sheets.

[2] Included within Other assets in our consolidated balance sheets.