CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Current assets
Cash and cash equivalents	$ 12,211	$ 12,525
Accounts receivable (net of allowance for doubtful accounts of $10,937 and $13,699, respectively)	62,723	55,512
Inventories	6,088	6,253
Other current assets	4,725	4,535
Total current assets	85,747	78,825
Property and equipment (net of accumulated depreciation of $37,496 and $27,102, respectively)	34,549	34,036
Intangible assets, net	76,330	77,064
Goodwill	147,019	147,019
Other assets	250	174
Total assets	343,895	337,118
Current liabilities
Accounts payable	14,823	16,782
Accrued compensation	11,805	8,351
Accrued expenses and other liabilities	5,000	4,247
Short-term portion of capital leases	4,687	4,891
Short-term portion of loans	3,799	3,842
Total current liabilities	40,114	38,113
Long-term liabilities
Long-term portion of capital leases	4,583	5,378
Long-term portion of loans, net	67,531	70,259
Revolving credit facility, net	24,461	21,799
Deferred income tax liability, net	7,548	14,973
Total long-term liabilities	104,123	112,409
Total liabilities	144,237	150,522
Commitments and contingencies - see Note I
Redeemable convertible preferred stock
Series A Redeemable Convertible Preferred Stock, $0.001 par value, (50,000,000 shares authorized; 6,600,000 shares issued and outstanding)	30,125	22,873
Stockholders' equity
Common stock, $0.001 par value, (250,000,000 shares authorized; 80,346,946 and 78,571,158 shares issued and outstanding, respectively)	80	79
Additional paid-in capital	229,006	216,104
Accumulated deficit	(59,553)	(52,460)
Total stockholders’ equity	169,533	163,723
Total liabilities, redeemable convertible preferred stock and stockholders' equity	$ 343,895	$ 337,118

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

Name:	us-gaap_AccountsPayableCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.