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Basis of Presentation and Significant Accounting Policies - Narrative (Details) - USD ($) |  |  | 1 Months Ended | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | --- | --- | ---
Sep. 25, 2020 | Aug. 28, 2020 | Mar. 31, 2020 | Sep. 30, 2020 | Sep. 30, 2020 | Apr. 02, 2020
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |
Dividends payable (USD per share) |  | $ 1.50 |  |  |  |
Dividends payable |  | $ 392,489,000 |  |  |  |
Stock options exercise price reduction (USD per share) |  | $ 1.50 |  |  |  |
Stock options exercise price, lower limit (USD per share) |  | $ 0.01 |  |  |  |
Interest Rate Swap | Not Designated as Hedging Instrument |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |
Derivative notional amount |  |  | $ 200,000,000 |  |  | $ 200,000,000
Term of contract (in years) |  |  | 10 years |  |  |
Public Stock Offering - Shares From Existing Shareholders |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |
Payments of expenses associated with initial public offering |  |  |  | $ 26,130,000 | $ 26,130,000 |
Public Stock Offering - Shares From Existing Shareholders | Class B Common Stock |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |
Number of shares sold (in shares) | 12,360,991 |  |  |  |  |
Price per share sold (USD per share) | $ 22.00 |  |  |  |  |
IPO | Class B Common Stock |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |
Number of shares sold (in shares) | 0 |  |  |  |  |
Sale of stock, consideration received | $ 0 |  |  |  |  |

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