Investments Narrative (Details) - USD ($) $ in Thousands		3 Months Ended			6 Months Ended	9 Months Ended				12 Months Ended
	Feb. 28, 2018	Sep. 30, 2020	Sep. 30, 2019	May 31, 2018	Jun. 30, 2020	Sep. 30, 2020		Sep. 30, 2019		Dec. 31, 2015	Dec. 31, 2019
Schedule of Equity Method Investments [Line Items]
Loss from related party equity method investment		$ 0	$ 1,983			$ 31,702	[1]	$ 6,401	[1]
Investment in related party		0				0					$ 31,702
NantOmics
Schedule of Equity Method Investments [Line Items]
Number of A-2 units purchased (in shares)	9,088,362			564,779						169,074,539
Aggregate purchase price										$ 250,774
Ownership percentage				13.58%						14.28%
Difference between the carrying value and equity, intangible assets										$ 28,195
Difference between the carrying value and equity, goodwill										$ 14,382
Other-than temporary impairment					$ 28,227
Loss from related party equity method investment		$ 0	$ 1,983			$ 31,702		$ 6,401
Investment in related party					$ 0

[1] The statements for the nine months ended September 30, 2020 and 2019 include the Connected Care Business (see Note 4).