CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Cash flows from operating activities:
Net income	$ 128,797	$ 71,049
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	30,805	13,154
Provision for doubtful accounts	131	271
Asset impairments	1,200	0
Non-cash interest expense	4,025	19,463
Loss on partial settlement of convertibles notes	0	56,382
Deemed repayment of convertible notes attributable to accreted debt discount	0	(15,585)
Change in fair value of debt securities	129	(2,369)
Stock-based compensation	100,861	30,156
Deferred income taxes	15,617	(30,127)
Changes in operating assets and liabilities:
Accounts receivable	27,546	(98,531)
Inventory	(55,866)	4,008
Prepaid expenses and other assets	(21,352)	(15,194)
Accounts payable, accrued and other liabilities	10,228	46,890
Warranty obligations	22,878	14,025
Deferred revenues	38,094	47,909
Net cash provided by operating activities	303,093	141,501
Cash flows from investing activities:
Purchases of property and equipment	(21,066)	(26,368)
Investments in private companies	0	(45,000)
Business acquisitions, net of cash acquired	(27,680)	(55,239)
Purchases of marketable securities	(60,061)	0
Maturities of marketable securities	193,033	0
Net cash provided by (used in) investing activities	84,226	(126,607)
Cash flows from financing activities:
Issuance of convertible notes, net of issuance costs	0	1,188,439
Purchase of convertible note hedges	0	(286,235)
Sale of warrants	0	220,800
Principal payments and financing fees on debt	0	(1,422)
Partial repurchase of convertible notes	0	(289,312)
Proceeds from exercise of equity awards and employee stock purchase plan	4,587	3,642
Repurchase of common stock	0	(200,000)
Payment of withholding taxes related to net share settlement of equity awards	(14,807)	(16,998)
Net cash provided by (used in) financing activities	(10,220)	618,914
Effect of exchange rate changes on cash and cash equivalents	(942)	(926)
Net increase in cash and cash equivalents	376,157	632,882
Cash and cash equivalents—Beginning of period	119,316	679,379
Cash and cash equivalents—End of period	495,473	1,312,261
Supplemental disclosures of non-cash investing and financing activities:
Purchases of property and equipment included in accounts payable	2,783	4,175
Purchase Of Property and Equipment Through Tenant Improvement Allowance	748	0
Contingent consideration in connection with the acquisition	$ 0	$ 3,596