Commitments and Contingencies (Details)	1 Months Ended	9 Months Ended
	Aug. 31, 2014 item	Dec. 02, 2017 case StoreManager item	May 15, 2017 item	Jan. 19, 2017 state
Commitments and Contingencies
Number of states failed to report Rx savings prices | state				18
The number of states attorneys general declined to intervene in action | item	8
The number of states the claims are stipulated to dismiss | item			18
Number of counties to preliminary stages of litigation related to alleged costs of opioid addiction | item		10
Indergit
Commitments and Contingencies
Number of current and former store managers court ordered notices to be sent | StoreManager		7,000
Number of current and former store managers who joined the action | StoreManager		1,550
Number of current and former store managers to whom notices will be sent after the Court approval | StoreManager		1,750
Hall
Commitments and Contingencies
Number of similar cases | case		2