Contingencies (Details)	3 Months Ended
	Mar. 31, 2021 States Cause
Litigation and Contingencies [Abstract]
Number of states in the antitrust litigation | States	41
Humana and Centene Actions [Member]
Litigation and Contingencies [Abstract]
Number of causes alleged	5
California Complaint [Member]
Litigation and Contingencies [Abstract]
Number of causes alleged	3