CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash flows from operating activities:
Net loss	$ (14,437)	$ (10,979)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	9,913	6,299
Amortization of deferred financing costs and debt discount	3,252	1,575
Deferred taxes	(3,367)	(3,381)
Stock-based compensation	7,137	6,852
Change in fair value of acquisition-related contingent consideration	700	1,176
Acquisition-related contingent consideration paid		(24,428)
Other noncash items		12
Changes in operating assets and liabilities, net of effect from acquisitions:
Accounts receivable, net	(7,114)	(3,258)
Inventories	(1,435)	(117)
Prepaid expenses and other current assets	4,625	(2,029)
Other assets	54	(354)
Accounts payable	1,528	(1,458)
Accrued expenses and other liabilities	(1,633)	3,464
Other long-term liabilities	(20)	(20)
Net cash used in operating activities	(797)	(26,646)
Cash flows from investing activities:
Purchases of property and equipment	(763)	(1,019)
Software development costs	(4,228)	(2,630)
Proceeds from repayment of note receivable		1,000
Acquisitions of businesses, net of cash acquired		(158,726)
Net cash used in investing activities	(4,991)	(161,375)
Cash flows from financing activities:
Proceeds from exercise of stock options	1,153	1,037
Payments for debt financing costs		(9,418)
Repayments of line of credit		(45,000)
Payments of acquisition-related consideration		(18,722)
Repayments of long-term debt and finance leases	(49)	(276)
Proceeds from issuance of convertible senior subordinated notes		325,000
Proceeds from sale of warrants		65,910
Purchase of convertible note hedges		(101,660)
Net cash provided by financing activities	1,104	216,871
Net (decrease) increase in cash and restricted cash	(4,684)	28,850
Cash and restricted cash, beginning of period	46,581	25,029
Cash and restricted cash, end of period	41,897	53,879
Supplemental disclosure of cash flow information:
Purchases of property and equipment and software development included in accounts payable and accrued expenses	223	1,600
Cash paid for interest	2,844	484
Cash paid for taxes	49	$ 4
Interest costs capitalized to property and equipment and software development costs	$ 64
Stock issued in connection with acquisitions		9,504