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Shareholders' Equity - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands |  |  |  | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | ---
Apr. 15, 2020 | Mar. 10, 2020 | Feb. 12, 2020 | Mar. 29, 2020 | Mar. 31, 2019 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Feb. 10, 2016
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Number of shares authorized for repurchase (in shares) |  |  |  |  |  |  |  |  |  | 5,000,000
Number of shares repurchased (in shares) |  |  |  | 0 |  | 0 | 0 | 0 | 2,030,000 |
Number of shares available for repurchase (in shares) |  |  |  | 2,970,000 |  |  |  |  |  |
Cost of shares repurchased |  |  |  | $ 3,938 | $ 7,395 |  |  |  |  |
Dividend declared and payable (in usd per share) |  |  | $ 0.43 |  |  |  |  |  |  |
Dividends paid (in usd per share) |  | $ 0.43 |  | $ 0.43 | $ 0.41 |  |  |  |  |
Tax Withholding Obligations |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Number of shares repurchased (in shares) |  |  |  | 65,000 | 133,000 |  |  |  |  |
Cost of shares repurchased |  |  |  | $ 3,938 | $ 7,395 |  |  |  |  |
Subsequent Event |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Dividend declared and payable (in usd per share) | $ 0.43 |  |  |  |  |  |  |  |  |

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