Property and Equipment, net - Additional Information (Details) $ in Thousands			12 Months Ended
	Apr. 01, 2015 USD ($) Beds	Feb. 24, 2015 USD ($) a	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Property Plant And Equipment [Line Items]
Purchase price paid in cash			$ 51,525	$ 15,584	$ 12,975
Property In Ringwood New Jersey
Property Plant And Equipment [Line Items]
Area of land | a		96
Purchase price paid in cash		$ 6,400
Hospital in Southern California
Property Plant And Equipment [Line Items]
Number of hospital beds | Beds	93
Business acquisition cash paid	$ 13,500