Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Cash flows from operating activities
Consolidated net income	$ 3,626	$ 10,546
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	8,764	7,325
Provision for allowances	3,658	3,071
Deferred income tax expense	3,046	1,609
Gain on derivative liability	0	(1,581)
Loss on early extinguishment of debt	36	4,969
Write-off of property and equipment	643	0
Equity compensation	2,364	3,083
Other non-cash costs	775	508
Changes in operating assets and liabilities:
Accounts receivable	2,745	3,337
Prepaid expenses and other assets	(1,145)	1,111
Accounts payable and accrued expenses	(1,675)	(5,255)
Other liabilities	(1,080)	(18)
Net cash provided by operating activities	21,757	28,705
Cash flows from investing activities
Acquisitions, net of cash acquired	0	(85,977)
Acquisition-related settlements	(149)	(239)
Purchases of property and equipment	(3,405)	(4,043)
Net cash used in investing activities	(3,554)	(90,259)
Cash flows from financing activities
Proceeds from Term Loans	0	62,000
Principal payments on Term Loans	(8,750)	(1,500)
Convertible Note cash payment	0	(5,000)
Borrowings on revolving credit facility	0	39,000
Repayments on revolving credit facility	0	(39,000)
Debt issuance costs	0	(901)
Extinguishment fees	0	(578)
Stock repurchase and retirement	(5,000)	0
Other	(1,841)	(2,350)
Net cash (used in) provided by financing activities	(15,591)	51,671
Effect of exchange rate changes on cash	(84)	18
Change in cash and cash equivalents	2,528	(9,865)
Cash and cash equivalents at beginning of period	25,537	20,630
Cash and cash equivalents at end of period	$ 28,065	$ 10,765