Commitments and Contingencies - Insurance (Details) - USD ($) $ in Thousands	1 Months Ended		12 Months Ended
	Sep. 30, 2014	Sep. 30, 2009	Dec. 31, 2015
Specialty Pharmaceutical Management
Insurance
Period for which insurance policies have been renewed			1 year
Per claim self-insured retention			$ 50
Aggregated self-insured retention			$ 250
General liability
Insurance
Period for which insurance policies have been renewed			1 year
Per claim un-aggregated self-insured retention			$ 50
Professional liability
Insurance
Period for which insurance policies have been renewed			1 year
Per claim un-aggregated self-insured retention			$ 50
Professional liability | Specialty Pharmaceutical Management
Insurance
Per claim self-insured retention			50
Aggregated self-insured retention			$ 250
Professional liability | Behavioral health direct care facilities
Insurance
Period for which insurance policies have been renewed		5 years
Per claim un-aggregated self-insured retention		$ 500
Period for which insurance policies have been extended	2 years
Per claim un-aggregated self-insured retention for extended insurance policies	$ 500
Managed care liability
Insurance
Period for which insurance policies have been renewed			1 year
Per claim un-aggregated self-insured retention			$ 1,000
Per class action claim un-aggregated self-insured retention			$ 10,000