Quarterly report pursuant to Section 13 or 15(d)

Revenue and Accounts Receivable - Schedule of Clinical Services Revenue (Details)

v3.7.0.1
Revenue and Accounts Receivable - Schedule of Clinical Services Revenue (Details) - Payor - Revenue
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Product Information [Line Items]        
Percentage of revenue 46.00% 36.00% 44.00% 38.00%
Medicare        
Product Information [Line Items]        
Percentage of revenue 16.00% 12.00% 15.00% 13.00%
Other insurers        
Product Information [Line Items]        
Percentage of revenue 24.00% 17.00% 23.00% 19.00%
Other healthcare facilities        
Product Information [Line Items]        
Percentage of revenue 6.00% 7.00% 6.00% 6.00%