Investments Narrative (Details) - USD ($) $ in Thousands			3 Months Ended			12 Months Ended
		Feb. 28, 2018	Mar. 31, 2020	Mar. 31, 2019	May 31, 2018	Dec. 31, 2015
Schedule of Equity Method Investments [Line Items]
Loss from related party equity method investment	[1]		$ 1,784	$ 2,210
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
Loss from related party equity method investment			$ 1,784	$ 2,210

[1] The statements for the three months ended March 31, 2020 and 2019 include the Connected Care Business (see Note 4).