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Stockholders' Equity - Additional Information (Details) - USD ($) | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | ---
Dec. 31, 2019 | Oct. 31, 2019 | Jan. 31, 2019 | Dec. 31, 2018 | Jan. 31, 2018
Class of Stock [Line Items] |  |  |  |  |
Common stock, shares authorized (in shares) | 153,000,000 |  |  | 153,000,000 |
Equity Distribution Program |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Proceeds from issuance of common stock | $ 500,000,000.0 |  |  |  |
Stock program, maximum amount authorized | $ 0 |  |  |  |
Voting Common Stock |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Common stock, shares authorized (in shares) | 150,000,000.0 |  |  |  |
Common Class B |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Common stock, shares authorized (in shares) | 3,000,000.0 |  |  |  |
Common Stock | October 2019 Program |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Stock repurchase program, number of shares authorized (in shares) |  | 6,000,000.0 |  |  |
Common Stock | January 2019 Program |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Stock repurchase program, number of shares authorized (in shares) |  |  | 3,300,000 |  |
Common Stock | January 2018 Program |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Stock repurchase program, number of shares authorized (in shares) |  |  |  |  | 3,400,000
Stock repurchase plan, number of remaining shares to be repurchased (in shares) | 0 |  |  |  |
Common Stock | January 2019 and October 2019 Programs |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Stock repurchase plan, number of remaining shares to be repurchased (in shares) | 6,900,000 |  |  |  |
Preferred Stock |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Preferred stock, shares authorized (in shares) | 5,000,000.0 |  |  |  |

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