Nature of Business and Organization (Narrative) (Details)			1 Months Ended	3 Months Ended	6 Months Ended
	Jul. 01, 2019 USD ($) shares	Jun. 26, 2019 $ / shares shares	Jul. 31, 2019 USD ($) shares	Sep. 30, 2019 USD ($) $ / shares shares	Sep. 30, 2019 USD ($) $ / shares shares	Mar. 31, 2019 $ / shares shares
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Ownership percentage in Joint Venture	41.00%				41.00%
Stock split conversion ratio		126.4
Common Stock, shares authorized		9,000,000,000		9,000,000,000	9,000,000,000	252,800,000
Common Stock, par value | $ / shares		$ 0.001		$ 0.001	$ 0.001	$ 0.001
Preferred stock, shares authorized		900,000,000		900,000,000	900,000,000	0
Preferred stock, par value | $ / shares		$ 0.001		$ 0.001	$ 0.001	$ 0.001
Proceeds from initial public offering | $					$ 608,679,000
Proceeds from tangible equity units | $			$ 278,875,000		$ 278,875,000
Shares received from Joint Venture	49,285,713
McKesson Corporation [Member]
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Ownership percentage in Joint Venture					59.00%
Common Class X [Member]
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Common Stock, shares authorized		1		1	1	1
Common Stock, par value | $ / shares		$ 0.001		$ 0.001	$ 0.001	$ 0.001
Common Stock [Member]
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Share offering	49,285,713
Proceeds from initial public offering | $	$ 608,679
Tangible Equity Units [Member]
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Tangible equity unit offering	5,750,000		5,750,000
Proceeds from tangible equity units | $	$ 278,875
Joint Venture [Member]
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Repayment of debt | $			$ 805,000	$ 85,000	$ 890,000