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
Mar. 31, 2017
Mar. 31, 2016
Product Information [Line Items]    
Percentage of revenue 43.00% 41.00%
Medicare    
Product Information [Line Items]    
Percentage of revenue 14.00% 15.00%
Other insurers    
Product Information [Line Items]    
Percentage of revenue 23.00% 22.00%
Other healthcare facilities    
Product Information [Line Items]    
Percentage of revenue 6.00% 4.00%