CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Current assets
Cash and cash equivalents	$ 33,013	$ 9,569
Restricted cash	4,950	0
Receivables, less allowance for doubtful accounts of $46,820 and $44,730 as of September 30, 2017 and December 31, 2016, respectively	89,215	111,811
Inventory	27,775	36,165
Prepaid expenses and other current assets	15,222	18,507
Total current assets	170,175	176,052
Property and equipment, net	28,726	32,535
Goodwill	367,198	365,947
Intangible assets, net	21,734	31,043
Other non-current assets	2,415	2,163
Total assets	590,248	607,740
Current liabilities
Current portion of long-term debt	1,828	18,521
Accounts payable	42,691	59,134
Amounts due to plan sponsors	4,890	3,799
Accrued interest	3,198	6,705
Accrued expenses and other current liabilities	36,419	42,191
Total current liabilities	89,026	130,350
Long-term debt, net of current portion	476,753	433,413
Deferred taxes	4,150	2,281
Other non-current liabilities	18,879	1,257
Total liabilities	588,808	567,301
Stockholders’ deficit
Preferred stock, $.0001 par value; 5,000,000 shares authorized; no shares issued and outstanding as of September 30, 2017 and December 31, 2016, respectively	0	0
Common stock, $.0001 par value; 250,000,000 shares authorized; 127,520,628 and 117,682,543 shares issued and outstanding as of September 30, 2017 and December 31, 2016, respectively	13	12
Treasury stock, 5,106 and no shares outstanding, at cost, as of September 30, 2017 and December 31, 2016	(16)	0
Additional paid-in capital	626,567	611,844
Accumulated deficit	(704,562)	(643,419)
Total stockholders’ deficit	(77,998)	(31,563)
Total liabilities and stockholders’ deficit	590,248	607,740
Series A convertible preferred stock, $.0001 par value; 825,000 shares authorized; 21,645 shares issued and outstanding as of September 30, 2017 and December 31, 2016; and $2,833 and $2,603 liquidation preference as of September 30, 2017 and December 31, 2016, respectively
Current liabilities
Convertible preferred stock	2,732	2,462
Series C convertible preferred stock, $.0001 par value; 625,000 shares authorized; 614,177 shares issued and outstanding as of September 30, 2017 and December 31, 2016; and $82,173 and $75,491 liquidation preference as of September 30, 2017 and December 31, 2016, respectively
Current liabilities
Convertible preferred stock	$ 76,706	$ 69,540