Consolidated Income Statements (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Income Statement [Abstract]
Admissions advisory and related expenses to related parties	$ 412	$ 762	$ 1,406	$ 2,373