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Stockholders' Equity - Additional Information (Details) - USD ($) shares in Thousands | Sep. 30, 2020 | Jul. 28, 2020 | Feb. 20, 2020 | Dec. 31, 2019 | Feb. 21, 2019 | Dec. 01, 2017 | May 18, 2017 | Jun. 02, 2016
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Stockholders Equity [Line Items] |  |  |  |  |  |  |  |
Common stock, shares outstanding (in shares) | 36,000 |  |  | 37,390 |  |  |  |
2016 Stock Repurchase Program |  |  |  |  |  |  |  |
Stockholders Equity [Line Items] |  |  |  |  |  |  |  |
Stock repurchase program authorized amount |  | $ 700,000,000.0 |  |  |  |  |  | $ 100,000,000.0
Stock repurchase program additional amount authorized |  | $ 200,000,000.0 | $ 100,000,000.0 |  | $ 100,000,000.0 | $ 100,000,000.0 | $ 100,000,000.0 |
Available amount under repurchase program | $ 182,400,000 |  |  |  |  |  |  |

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