COMBINED STATEMENTS OF INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
NET SERVICE FEE REVENUE
Service fee revenue, net of contractual allowances and discounts	$ 58,295	$ 55,008	$ 55,058
Provision for bad debts	(2,796)	(2,824)	(2,832)
Net service fee revenue	55,499	52,184	52,226
OPERATING EXPENSES
Cost of operations	37,620	34,802	36,767
Depreciation and amortization	4,285	4,139	4,718
Loss on sale and disposal of equipment	55	31	19
Severance	2	0	0
Total operating expenses	41,962	38,972	41,504
INCOME FROM OPERATIONS	13,537	13,212	10,722
Net interest expense	21	34	60
NET INCOME	$ 13,516	$ 13,178	$ 10,662