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Stockholders' Equity (Details) - USD ($) shares in Thousands, $ in Millions | Dec. 31, 2019 | Dec. 03, 2019 | Dec. 31, 2018
--- | --- | --- | ---
Stockholders' Equity |  |  |
Number of common stock authorized | 75,000 |  | 75,000
Number of common stock outstanding | 32,585 |  | 32,558
Stock repurchase program, remaining authorized repurchase amount | $ 32.3 |  |
Maximum |  |  |
Stockholders' Equity |  |  |
Share repurchase program common stock authorized amount |  | $ 50.0 |

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