CONDENSED CONSOLIDATED AND COMBINED BALANCE SHEETS (Parenthetical) (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2016	Apr. 29, 2016	Dec. 31, 2015
Statement Of Financial Position [Abstract]
Allowance for doubtful patient accounts	$ 337,253		$ 346,507
Preferred stock, par value	$ 0.0001
Preferred stock, shares authorized	100,000,000
Preferred stock, shares issued	0
Common stock, par value	$ 0.0001
Common stock, shares authorized	300,000,000
Common stock, shares issued	29,489,247
Common stock, shares outstanding	29,489,247	28,412,054