SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

3 Months Ended

Mar. 31, 2018

Accounting Policies [Abstract]

Schedule of Accounts Receivable Aging

The following table sets forth the aging of our net accounts receivable (net of allowance for contractual adjustments and implicit price concessions as of March 31, 2018, and net of allowance for contractual adjustments, prior to allowance for doubtful accounts, as of March 31, 2017), aged based on date of service and categorized based on the three primary overall types of accounts receivable characteristics (in thousands):

	March 31, 2018						December 31, 2017
	0 - 180 days		Over 180 days		Total		0 - 180 days		Over 180 days		Total
Government	$	18,367	$	1,604	$	19,971	$	20,602	$	10,082	$	30,684
Commercial	61,561		2,019		63,580		63,767		18,779		82,546
Patient	3,819		815		4,634		2,577		7,627		10,204
Gross accounts receivable	$	83,747	$	4,438	88,185		$	86,946	$	36,488	123,434
Allowance for doubtful accounts					—						(37,912		)
Net accounts receivable					$	88,185					$	85,522