Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Operating activities
Net loss	$ (8,391)	$ (11,425)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	9,217	5,046
Deferred income taxes	275	392
Amortization of deferred commissions	1,115	0
Foreign currency re-measurement (gain) loss	269	(182)
Non-cash interest and other expense	404	120
Non-cash stock compensation expense	6,599	5,920
Non-cash loss on retirement of fixed assets	0	(18)
Non-cash loss on debt extinguishment	0	1,634
Changes in operating assets and liabilities, net of purchase business combinations:
Accounts receivable	2,963	4,038
Prepaids and other	(2,545)	846
Accounts payable	(476)	857
Accrued expenses and other liabilities	(3,898)	(462)
Deferred revenue	(1,792)	(1,024)
Net cash provided by operating activities	3,740	5,742
Investing activities
Purchase of property and equipment	(515)	(375)
Purchase business combinations, net of cash acquired	(45,362)	(37,096)
Net cash used in investing activities	(45,877)	(37,471)
Financing activities
Payments on capital leases	(505)	(745)
Proceeds from notes payable, net of issuance costs	49,375	33,308
Payments on notes payable	(1,876)	(10,725)
Taxes paid related to net share settlement of equity awards	(3,862)	(372)
Issuance of common stock, net of issuance costs	382	43,073
Additional consideration paid to sellers of businesses	(4,294)	(4,338)
Net cash provided by financing activities	39,220	60,201
Effect of exchange rate fluctuations on cash	(372)	190
Change in cash and cash equivalents	(3,289)	28,662
Cash and cash equivalents, beginning of period	22,326	28,758
Cash and cash equivalents, end of period	19,037	57,420
Supplemental disclosures of cash flow information:
Cash paid for interest	5,260	1,984
Cash paid for taxes	1,856	1,172
Noncash investing and financing activities:
Equipment acquired pursuant to capital lease obligations	$ 0	$ 165