SUPPLEMENTAL CASH FLOW INFORMATION

12 Months Ended

Dec. 31, 2019

Supplemental Cash Flow Elements [Abstract]

SUPPLEMENTAL CASH FLOW INFORMATION

SUPPLEMENTAL CASH FLOW INFORMATION

The supplemental disclosures of cash flow information consist of the following (in thousands):

	Year Ended December 31,
	2019		2018		2017
Supplemental Cash Flow Data:
Cash paid for interest	$	5,677	$	4,125	$	1,374
Cash paid for income taxes	2,744		1,622		1,254
Supplemental disclosures of non-cash investing and financing activities:
Right-of-use assets obtained in exchange for operating lease obligations	40,555		—		—
Change in purchases of property and equipment in accounts payable and accrued expenses	(419)		15,067		143
Unpaid business combination purchase price	8,411		3,995		2,115
Non-cash proceeds from sale of asset group	100,000		—		—
Fair value of common stock issued related to business combination	—		(140,107)		—
Recovery of common stock in connection with indemnification settlement agreement	789		2,745		—
Fair value of common stock issued to settle the conversion of senior notes, due 2022	—		(571,408)		—
Fair value of shares received to settle senior note hedges, due 2022	—		544,276		—