Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Operating activities
Net loss attributable to common stockholders	$ (19,503,000)	$ (43,568,000)	$ (40,390,000)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	88,372,000	75,574,000	63,081,000
Stock-based compensation	61,577,000	29,456,000	18,646,000
Bad debt expense	9,207,000	11,089,000	10,074,000
Loss on extinguishment of debt	3,435,000	259,000	0
Release of VAT reserve	(3,188,000)	0	0
Non-cash interest expense	1,357,000	1,107,000	418,000
Loss on impairment	285,000	1,222,000	546,000
Revaluation of warrants	(556,000)	12,825,000	411,000
Other	121,000	(316,000)	427,000
Changes in operating assets and liabilities, net of acquisition:
Accounts receivable	(20,727,000)	(17,141,000)	(14,413,000)
Prepaid expenses and other current assets	1,130,000	(13,328,000)	(2,839,000)
Accounts payable and accrued expenses	9,325,000	2,369,000	3,954,000
Deferred revenue	(46,000)	567,000	795,000
Other assets and liabilities	2,325,000	(2,000,000)	(808,000)
Net cash provided by operating activities	133,114,000	58,115,000	39,902,000
Investing activities
Capital expenditures - property and equipment	(97,072,000)	(98,217,000)	(53,504,000)
Capital expenditures - internal-use software development	(6,391,000)	(12,328,000)	(16,940,000)
Purchase of intangible assets	(5,636,000)	(5,118,000)	(14,055,000)
Cash paid for acquisition of businesses, net of cash acquired	(5,000,000)	0	(2,928,000)
Proceeds from sale of equipment	494,000	173,000	44,000
Net cash used in investing activities	(113,605,000)	(115,490,000)	(87,383,000)
Financing activities
Proceeds from issuance of convertible notes, net of issuance costs	1,462,195,000	0	0
Repayment of capital leases	0	(3,801,000)	(888,000)
Repayment of notes payable	(33,214,000)	(14,080,000)	(22,841,000)
Proceeds from third-party secured financings	0	7,795,000	11,495,000
Repayment of term loan	(166,813,000)	(73,500,000)	(3,281,000)
Proceeds from issuance of term loan, net of issuance costs	0	168,531,000	0
Repayment of borrowings under revolving credit facility	(63,200,000)	(84,500,000)	0
Proceeds from borrowings under revolving credit facility, net of issuance costs	0	61,394,000	59,500,000
Proceeds related to the issuance of common stock under equity incentive plan	18,369,000	13,905,000	5,819,000
Proceeds from the issuance of common stock under employee stock purchase plan	4,970,000	0	0
Employee payroll taxes paid related to net settlement of equity awards	(3,187,000)	0	0
Proceeds from initial public offering, net of underwriting discounts and commissions and other offering costs	724,384,000	(1,403,000)	0
Proceeds from the issuance of convertible preferred stock, net of issuance costs	0	49,810,000	0
Repurchase and retirement of common stock	(350,000,000)	0	0
Repayment of seller’s note	(125,000)	(125,000)	0
Net cash provided by financing activities	1,593,379,000	124,026,000	49,804,000
Increase in cash, cash equivalents and restricted cash	1,612,888,000	66,651,000	2,323,000
Cash, cash equivalents and restricted cash - beginning of period	102,537,000	35,886,000	33,563,000
Cash, cash equivalents and restricted cash - end of period	1,715,425,000	102,537,000	35,886,000
Supplemental disclosures of cash flow information:
Cash paid for interest	2,344,000	12,398,000	8,829,000
Cash paid for taxes (net of refunds)	921,000	605,000	306,000
Non-cash investing and financing activities:
Capitalized stock-based compensation	916,000	526,000	567,000
Property and equipment received but not yet paid, included in Accounts payable and Accrued other expenses	12,968,000	17,928,000	23,622,000
Seller financed equipment purchases	0	3,927,000	10,722,000
Issuance of common stock for acquisition	27,566,000	0	0
Debt issuance costs included in accounts payable and accrued liabilities	$ 400,000	$ 0	$ 0