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Common Stock and Treasury Stock - Additional Information (Details) - USD ($) | 12 Months Ended | 22 Months Ended |
--- | --- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2019 | Feb. 28, 2018
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |
Repurchase program, amount approved for repurchase |  |  |  |  | $ 200,000,000.0
Repurchase program, shares repurchased (in shares) | 1,228,102 | 2,346,427 | 1,653,573 | 45,357,495 |
Repurchase program, shares repurchased, value | $ 35,617,000 | $ 54,527,000 | $ 37,387,000 | $ 583,400,000 |
Repurchase program, maximum remaining amont authorized for purchase | $ 141,000,000.0 |  |  | $ 141,000,000.0 |
Stock Options |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |
Treasury shares issued (in shares) | 854,524 | 1,379,704 | 1,204,559 |  |
Restricted Share Awards (RSAs) |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |
Treasury shares issued (in shares) |  |  | 560,174 |  |
Restricted Stock Units (RSUs) |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |
Treasury shares issued (in shares) | 259,634 | 10,000 |  |  |
Employee Stock Purchase Plan (ESPP) |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |
Treasury shares issued (in shares) | 126,983 | 148,520 | 158,194 |  |

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