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Organization and Basis of Presentation - Narrative (Details) - Stock Repurchase Program - USD ($) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2018 | Jan. 24, 2019
Equity, Class of Treasury Stock [Line Items] |  |
Number of shares authorized for repurchase, percentage of outstanding (percent) |  | 5.00%
Number of shares authorized for repurchase (shares) |  | 1,500,000
Stock repurchased during period (shares) | 0 |
Stock repurchased during period | $ 0 |

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