CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Cash flows from operating activities:
Net loss	$ (4,953)	$ (498)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	9,700	11,120
Stock-based compensation expense	2,080	1,251
Change in fair value of derivative liability	(1,220)	(1,553)
Change in fair value of earnout liability	2,263	(3,754)
Foreign currency translation on senior bank debt	(2,855)
Foreign currency translation on cross currency swaps	1,678
Non-cash interest expense relating to senior debt	626	1,957
Changes in assets and liabilities:
Accounts receivable	(2,347)	(1,223)
Inventory	764	(1,445)
Prepaid expenses and other assets	1,891	1,688
Corporate tax and other current taxes payable	(288)	(1,579)
Accounts payable	4,406	1,881
Other current liabilities		150
Deferred revenues and customer prepayment	(3,518)	721
Accrued expenses	672	(635)
Other long-term liabilities	(604)	(1,412)
Net cash provided by operating activities	8,295	6,669
Cash flows from investing activities:
Purchases of property and equipment	(1,325)	(2,095)
Purchases of capital software	(3,861)	(5,026)
Net cash used in investing activities	(5,186)	(7,121)
Cash flows from financing activities:
Repayments of capital leases	(164)	(195)
Proceeds from issuance of revolver and long-term debt		3,247
Net cash (used in) provided by financing activities	(164)	3,052
Effect of exchange rate changes on cash	100	(170)
Net increase in cash	3,045	2,430
Cash, beginning of period	15,988	10,989
Cash, end of period	19,033	13,419
Supplemental cash flow disclosures
Cash paid during the period for interest	4,023	120
Cash paid during the period for income taxes
Supplemental disclosure of noncash investing and financing activities
Additional paid in capital reclassified from derivative liability		$ 2,848