Equity Method Investment in Change Healthcare LLC (Narrative) (Details)	3 Months Ended
	Jun. 30, 2019
Schedule of Equity Method Investments [Line Items]
Ownership percentage in Joint Venture	30.00%
Legacy CHC [Member]
Schedule of Equity Method Investments [Line Items]
Percentage investment exchanged for membership interest in Joint Venture	45.615%
Joint Venture [Member] | Legacy CHC [Member]
Schedule of Equity Method Investments [Line Items]
Ownership percentage in Joint Venture	54.385%