Stockholders' Equity - CEO Performance Award - Additional Information (Details) $ in Thousands		9 Months Ended
	May 24, 2018 USD ($) item tranche shares	Sep. 30, 2021 USD ($) 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		$ 219,500
Number of awards expected to vest | shares		1,600,000
Revenue goal number 1		$ 710,058
Adjusted EBITDA goal number 9		125,000
Revenue goal number 2		860,058
Adjusted EBITDA goal number 10		155,000
Revenue goal number 3		1,010,058
Adjusted EBITDA goal number 11		175,000
Revenue goal number 4		1,210,058
Adjusted EBITDA goal number 12		190,000
Revenue goal number 5		1,410,058
Adjusted EBITDA goal number 13		200,000
Revenue goal number 6		1,610,058
Adjusted EBITDA goal number 14		210,000
Revenue goal number 7		1,810,058
Adjusted EBITDA goal number 15		220,000
Revenue goal number 8		2,010,058
Adjusted EBITDA goal number 16		$ 230,000
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance shares authorized (in shares) | shares	6,365,856
Number of options vested | shares		4,200,000
Weighted average period over which costs are recognized		1 year 6 months 10 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		$ 26,500
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