XML 43 R32.htm IDEA: XBRL DOCUMENT v3.8.0.1
Summary of Significant Accounting Policies - Schedule of Changes in Contractual Allowance (Details) - USD ($)
$ in Thousands
 9 Months Ended 12 Months Ended
Sep. 30, 2017
Dec. 31, 2016
Receivables [Abstract]    
Balance, beginning of period $ 2,340 $ 338
Add: contractual allowances 4,072 2,726
Less: write-offs, net of recoveries and other adjustments (678) (724)
Balance, end of period $ 5,734 $ 2,340