Summary of Significant Accounting Policies (Details) $ in Thousands		3 Months Ended		9 Months Ended		12 Months Ended
	Oct. 14, 2020 shares	Sep. 30, 2020 USD ($) shares	Sep. 30, 2019 shares	Sep. 30, 2020 USD ($) shares	Sep. 30, 2019 USD ($) shares	Dec. 31, 2019 USD ($)
Class of Stock [Line Items]
Weighted-average units (in shares) | shares		119,994,000	119,994,000	119,994,000	119,994,000
Deferred offering costs		$ 3,300		$ 3,300
Debt issuance costs		500		500
Contract assets		34,800		34,800		$ 16,100
Contract liabilities		44,800		44,800		328,800
Deferred revenue recognized				$ 20,500	$ 328,800
Percentage of deferred revenue recognized				99.20%	100.00%
Remaining performance obligation		$ 227,000		$ 227,000
Percentage of performance obligation to be recognized		100.00%		100.00%
Cash that is uninsured and uncollateralized		$ 26,600		$ 26,600		$ 360,900
Largest Customer | Revenue Benchmark | Customer Concentration Risk
Class of Stock [Line Items]
Concentration risk percentage				14.30%	21.10%
Largest Customer | Trade Accounts Receivable | Customer Concentration Risk
Class of Stock [Line Items]
Concentration risk percentage				21.70%		29.50%
Five Largest Customers | Revenue Benchmark | Customer Concentration Risk
Class of Stock [Line Items]
Concentration risk percentage				45.90%	55.20%
Five Largest Customers | Trade Accounts Receivable | Customer Concentration Risk
Class of Stock [Line Items]
Concentration risk percentage				23.90%		69.00%
Two Customers | Revenue Benchmark | Customer Concentration Risk
Class of Stock [Line Items]
Concentration risk percentage				24.50%
Three Customers | Revenue Benchmark | Customer Concentration Risk
Class of Stock [Line Items]
Concentration risk percentage					43.10%
CARES Act Payroll Tax Deferral
Class of Stock [Line Items]
Deferred payment of employer share of social security taxes		$ 700		$ 700
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-10-01
Class of Stock [Line Items]
Remaining performance obligation, period		12 months		12 months
Subsequent event
Class of Stock [Line Items]
Stock split conversion ratio	1.19994
Weighted-average units (in shares) | shares	119,994,467
Member units | Subsequent event
Class of Stock [Line Items]
Number of shares converted | shares	1,000
Common Stock | Subsequent event
Class of Stock [Line Items]
Number of shares issued upon conversion | shares	100,000,000