CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash flows from operating activities
Net loss	$ (41,543)	$ (13,486)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	80,190	30,848
Accretion of debt discount and amortization of debt issuance costs	7,502	3,130
Amortization (accretion) of purchased investment premium or discount, net	41	(900)
Net foreign currency and other loss	4,063	2,504
Stock-based compensation expense	55,197	55,714
Deferred income taxes	(32,081)	0
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable	32,243	23,900
Deferred commissions	(8,715)	(14,130)
Prepaid expenses and other assets	14,302	12,589
Accounts payable	(6,852)	(6,040)
Accrued expenses	(4,545)	(5,563)
Deferred revenue	(43,349)	(39,048)
Other liabilities	5,456	3,437
Net cash provided by operating activities	61,909	52,955
Cash flows from investing activities
Purchases of marketable investments	(20,419)	(201,981)
Maturities and sales of investments	272,173	206,040
Capital expenditures	(2,910)	(15,987)
Capitalized software costs	(20,296)	(18,835)
Cash paid for acquisitions, net of cash acquired	(1,295,508)	0
Net cash used in investing activities	(1,066,960)	(30,763)
Cash flows from financing activities
Proceeds from term loan debt, net of discount	979,582	0
Payments of debt issuance and modification costs	(30,429)	0
Proceeds from employee stock plans	15,953	33,072
Payment of tax withholdings for employee stock plans	0	(5,469)
Repurchases of common stock	0	(13,530)
Net cash provided by financing activities	965,106	14,073
Effect of exchange rate changes on cash, cash equivalents, and restricted cash	3	(1,123)
Net (decrease) increase in cash, cash equivalents, and restricted cash	(39,942)	35,142
Cash, cash equivalents, and restricted cash at beginning of period	215,907	183,596
Cash, cash equivalents, and restricted cash at end of period	175,965	218,738
Supplemental cash flow data
Cash paid for interest	38,873	17,356
Cash paid for income taxes	3,725	1,488
Non-cash investing and financing activities:
Assets acquired under capital leases and other financing arrangements	0	1,276
Capitalized assets financed by accounts payable and accrued expenses	56	1,205
Capitalized stock-based compensation	5,467	3,427
Issuance of common stock for partial consideration for acquisition	32,889	0
Increase in debt discount as a result of modification of Convertible Notes	18,598	0
Reconciliation of cash, cash equivalents, and restricted cash
Total cash, cash equivalents, and restricted cash	$ 175,965	$ 218,738