Stockholders' Equity - CEO Performance Award - Additional Information (Details) $ in Thousands		3 Months Ended	6 Months Ended
	May 24, 2018 USD ($) item tranche shares	Jun. 30, 2021 USD ($) shares	Jun. 30, 2021 USD ($) shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Market capitalization goal for such tranche	$ 2,500,000
Market capitalization goal increment	$ 1,000,000
Recorded share-based compensation expense			$ 204,200
Number of options expected to vest | shares		4,800,000	4,800,000
Revenue goal number 1		$ 710,058	$ 710,058
Adjusted EBITDA goal number 9		125,000	125,000
Revenue goal number 2		860,058	860,058
Adjusted EBITDA goal number 10		155,000	155,000
Revenue goal number 3		1,010,058	1,010,058
Adjusted EBITDA goal number 11		175,000	175,000
Revenue goal number 4		1,210,058	1,210,058
Adjusted EBITDA goal number 12		190,000	190,000
Revenue goal number 5		1,410,058	1,410,058
Adjusted EBITDA goal number 13		200,000	200,000
Revenue goal number 6		1,610,058	1,610,058
Adjusted EBITDA goal number 14		210,000	210,000
Revenue goal number 7		1,810,058	1,810,058
Adjusted EBITDA goal number 15		220,000	220,000
Revenue goal number 8		2,010,058	2,010,058
Adjusted EBITDA goal number 16		230,000	230,000
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance shares authorized (in shares) | shares	6,365,856
Updated estimates, stock-based compensation expense		107,300	$ 158,700
Number of options vested | shares			1,600,000
Weighted average period over which costs are recognized			1 year 6 months 25 days
CEO Performance Award
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized share-based compensation cost related to unvested stock option awards, probable of achievement		$ 41,700	$ 41,700
Chief Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of vesting tranches of share-based awards | tranche	12
Vesting period	10 years
Number of performance goals, revenue | item	8
Number of performance goals, adjusted EBITDA | item	8